1. ISO 9001 Certified Forged Flanges Factory
All forged flanges are produced in ISO 9001–certified factories, with standardized process control from raw material inspection to final dimensional checks. This system helps keep mechanical properties, grain flow, and tolerances stable across repeated orders.
2. Professional Technical Team to Provide Support
Our technical team reviews drawings, pressure ratings, tolerances, and machining allowances before production. This early involvement reduces rework, avoids over-forging, and helps clients lock in a practical flange forging solution faster.
3. Finalize Your Order Faster
Clear process planning, matched forging factories, and in-house machining resources shorten confirmation cycles. Samples, tooling, and mass production are coordinated efficiently, helping projects move from inquiry to production with fewer back-and-forth steps.
4. Perfect Quality Assurance Service
Each batch of forged steel flanges goes through dimensional inspection, material verification, and surface checks. Any quality or quantity issue is handled through returns, exchanges, or restocking support, keeping procurement risk under control.
5. Finalize Flange Forging Services at a Lower Price
Optimized forging routes, stable material sourcing, and accurate cost breakdowns help avoid unnecessary machining and material waste. This approach delivers carbon steel forged flanges with a more competitive and predictable unit cost.
Forged flanges are widely used in piping systems that demand strength, pressure resistance, and long service life. HULK Metal provides flange forging services covering forged steel flanges and carbon steel forged flanges, supported by experienced factories and machining teams. From drawing review to final inspection, we help clients secure consistent quality, controlled tolerances, and reliable supply.
Forged Flanges OEM services cover production strictly according to drawings, using carbon steel, stainless steel, and alloy steel. Hot forging and die forging are combined with CNC machining such as turning, milling, drilling, and grinding. Surface treatments, testing, packaging, logistics, and lifetime quality assurance are integrated to support demanding pipeline, energy, marine, and heavy industrial applications with flexible delivery methods and professional after-sales service for global engineering procurement projects worldwide.
Name | Forged Flanges |
Manufacturing Methods | Manufacturing According to Drawings |
Raw Materials | Steel, SS (Stainless Steel),Alloy Steel |
Process | Hot Forging,Die Forging. CNC Machining: Turning, milling, polishing, grinding, drilling, and reaming, and so on Packaging, Delivery, After Service. |
Surface Treatment | Galvanized, Passivation, Powder Coating, Shot Blasting, Polishing, Anodizing, etc. |
Application | Oil and gas pipelines, petrochemical processing units, power generation systems, shipbuilding, water and steam pipelines, and heavy industrial equipment. |
Test Content & Data | 1.Chemical Composition; 2. Mechanical Properties; 3. Inspection of appearance, size, shape, and position tolerance; 4. Surface Quality; |
Packaging | Wooden case / Carton / Bulk / Individually Packaged / Customized |
Service | Freight consulting / Quality inspection / After-sales / Other value-added services. |
Delivery Method | Sea / Air / Land |
Quality Assurance | Life Long |
Forged flanges combine high-strength materials, precise forging methods, and advanced machining to deliver reliable performance in demanding industrial applications. HULK Metal provides complete services, including material selection, hot die forging, CNC machining, surface treatment, strict quality inspection, and thoughtful packaging. Our technical expertise, well-developed supply chain, and comprehensive after-sales support ensure that every forged flange meets exact specifications, maintains long-term durability, and satisfies the most rigorous project requirements across multiple industries.
Forged flanges are connection components formed by applying compressive force to heated or cold metal, creating a dense internal structure with continuous grain flow. Compared with cast or cut flanges, forged flanges deliver higher mechanical strength, improved fatigue resistance, and more consistent performance under pressure and temperature variation. They are widely used in oil and gas pipelines, petrochemical systems, power generation equipment, marine engineering, and heavy industrial assemblies where joint reliability directly affects system safety. At HULK Metal, forged flanges are produced strictly according to drawings, combining controlled forging processes with CNC machining to achieve stable dimensions, clean sealing surfaces, and repeatable quality suitable for long-term industrial service.
The primary advantage of forged flanges lies in their internal structure. During flange forging, metal fibers flow along the shape of the part instead of being interrupted, which improves tensile strength, impact resistance, and fatigue life. This makes forged steel flanges more suitable for high-pressure pipelines, thermal cycling environments, and safety-critical connections. Another advantage is dimensional consistency. Forged flanges allow tighter control of thickness, bore alignment, and sealing face flatness after machining, reducing installation issues on site.
Forged flanges also show better material utilization compared with fully machined flanges from plate or bar. Near-net forging reduces excessive cutting, helping control material cost while maintaining mechanical performance. In addition, forged flanges adapt well to different materials, including carbon steel, alloy steel, and stainless steel, allowing flexible material selection based on pressure class and corrosion requirements.
However, forged flanges also have limitations. Initial tooling costs for die forging can be higher, especially for non-standard sizes. Improper forging temperature control may lead to grain coarsening or surface cracking. For complex flange geometries, multiple forging and machining steps may be required, increasing process coordination demands. HULK Metal addresses these challenges through matched forging factories, controlled heating parameters, and process planning that balances forging shape accuracy with machining efficiency, ensuring performance advantages are fully realized without unnecessary cost increases.
Flange forging typically starts with qualified raw material inspection, followed by controlled heating to achieve proper plasticity. The heated billet is then shaped through hot die forging or open-die forging to form the flange profile. After forging, normalizing or heat treatment is applied to stabilize mechanical properties. CNC machining follows, including turning of the outer diameter, facing of sealing surfaces, drilling bolt holes, and finishing operations. Final inspection covers chemical composition, mechanical properties, dimensions, and surface quality before packaging and delivery.
Hot die forging is the primary method used for producing forged flanges with consistent geometry and high production efficiency. In this process, heated steel billets are placed into precision dies and shaped under controlled pressure. The closed-die structure ensures stable outer dimensions, uniform thickness distribution, and repeatable flange profiles across production batches. This method is well suited for standard and custom forged flanges requiring tight dimensional control and predictable mechanical performance.
Hot die forging also improves internal grain flow, aligning metal fibers along the flange shape and sealing surface. This enhances load-bearing capacity and reduces the risk of internal defects. At HULK Metal, hot die forging is combined with controlled heating curves and deformation ratios to prevent surface cracking or excessive scale formation. Post-forging machining allowances are calculated in advance to balance forging accuracy and machining efficiency. This approach helps clients receive forged steel flanges that meet drawing requirements while maintaining competitive cost and stable lead times.
Materials for Forged Flanges
Carbon steel forged flanges are widely used due to their balanced strength, machinability, and cost efficiency. Common grades include ASTM A105, A350 LF2, and equivalent standards, which perform reliably in oil and gas pipelines, water systems, and general industrial applications. These materials offer good tensile strength and impact resistance when forged and heat treated correctly.
During flange forging, carbon steel responds well to hot deformation, allowing smooth grain flow and consistent density. Proper control of forging temperature and cooling rate is critical to avoid coarse grains or reduced toughness. HULK Metal coordinates material sourcing, forging parameters, and heat treatment to ensure carbon steel forged flanges meet pressure and temperature requirements defined in drawings. CNC machining then refines sealing faces and bolt holes, delivering flanges ready for installation with predictable performance.
Alloy steel forged flanges are selected for applications requiring higher strength, elevated temperature resistance, or enhanced fatigue performance. Typical grades include ASTM A182 F11, F22, and similar alloy systems containing chromium and molybdenum. These alloys provide improved creep resistance and mechanical stability under demanding operating conditions.
Forging alloy steel flanges requires stricter temperature control and deformation planning compared with carbon steel. Improper handling can lead to cracking or uneven microstructure. HULK Metal works with experienced forging factories to manage heating cycles, forging ratios, and post-forging heat treatment. Machining allowances are adjusted to account for higher hardness levels. The result is forged flanges with stable mechanical properties, controlled tolerances, and long service life in power generation, petrochemical, and heavy industrial systems.
Stainless steel forged flanges are used where corrosion resistance and cleanliness are critical. Common grades include ASTM A182 F304, F316, and F321, offering resistance to corrosion, oxidation, and chemical attack. Forging stainless steel improves internal density compared with cut plate flanges, enhancing strength without compromising corrosion performance.
Stainless steel requires precise forging temperature windows to prevent surface tearing or excessive work hardening. At HULK Metal, forging routes are selected based on alloy composition, and machining sequences are planned to protect sealing surfaces. Final treatments such as passivation or polishing further enhance surface quality. These forged flanges are widely applied in chemical processing, marine environments, and fluid systems where reliability and material stability are essential.
Dimensional deviation is a common issue in forged flanges, often caused by inconsistent billet size, uneven deformation, or insufficient die control. Variations in thickness or bore alignment can lead to excessive machining or assembly problems. HULK Metal addresses this by defining forging tolerances during the quotation stage and matching flange geometry with suitable forging methods. Pre-form design and controlled deformation ratios help stabilize dimensions before machining. CNC machining then fine-tunes critical surfaces, ensuring final dimensions align with drawings and flange standards.
Surface cracks or laps may occur when forging temperature is too low or deformation is too aggressive. These defects compromise sealing surfaces and structural integrity. HULK Metal works with forging factories to maintain proper heating curves and deformation speeds. Visual inspection and surface checks are conducted before machining to identify defects early. Defective forgings are rejected before value-added processes begin, preventing downstream quality risks and protecting delivery schedules.
3. Inconsistent Mechanical Properties
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Inconsistent mechanical properties can result from uneven grain structure or improper heat treatment. This is especially critical for forged steel flanges used in pressure systems. HULK Metal ensures each batch follows defined heat treatment parameters and verifies results through mechanical testing. Material traceability links test results to each production batch, providing clients with confidence in long-term performance and compliance with specifications.
4. Excessive Machining Allowance
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Over-forging leads to excessive machining, increasing cost and cycle time. HULK Metal reduces this risk by optimizing forging shape accuracy and defining realistic machining allowances based on flange geometry. Early technical review prevents unnecessary material waste and balances forging and machining efficiency, resulting in a more controlled unit cost.
5. Delivery Delays Due to Process Mismatch
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Delivery delays often occur when forging, machining, and inspection are not well coordinated. HULK Metal manages the entire process chain, aligning forging factories, CNC machining, inspection, and packaging schedules. Clear process planning reduces waiting time between steps and keeps production on track, helping clients secure forged flanges on time for project installation and system assembly.
3.1.2 How We Forged Flanges
Forged flanges are produced through a structured and controlled manufacturing flow that connects process selection, tooling preparation, material inspection, forging, machining, and final delivery. At HULK Metal, each step is planned based on drawings and application requirements to reduce production risk, stabilize quality, and ensure forged flanges meet dimensional, mechanical, and delivery expectations.
3.1.2.1 Determine the Appropriate Manufacturing Process
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The manufacturing process is determined after reviewing drawings, pressure ratings, tolerances, and application conditions. Our technical team evaluates whether hot die forging, open-die forging, or a combined forging and machining route is more suitable. This early decision helps control deformation, material flow, and machining allowance, reducing unnecessary cost while maintaining mechanical performance and dimensional stability for forged flanges.
3.1.2.2 Design, Manufacture, and Debug the Mold
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Mold design and manufacturing are carried out strictly according to the drawings. Forging dies are developed with proper draft angles, deformation ratios, and machining allowances in mind. Before mass production, molds are debugged through trial forging to verify shape accuracy and metal flow. This step helps avoid dimensional deviation, surface defects, and repeated adjustments during flange forging.
3.1.2.3 Raw Material Procurement and Quality Inspection
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Raw materials are sourced from stable steel suppliers and verified before forging begins. Chemical composition and mechanical properties are checked to ensure compliance with specified grades such as carbon steel, alloy steel, or stainless steel. Only qualified materials enter the forging process, which helps prevent internal defects and ensures forged flanges perform consistently under pressure and temperature variations.
3.1.2.4 Mass Production
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After tooling and material confirmation, mass production is scheduled through matched forging factories. Heating temperature, forging force, and deformation steps are controlled to maintain uniform grain flow and density. CNC machining follows forging to complete sealing faces, bolt holes, and critical dimensions, ensuring each forged flange aligns with drawing requirements and installation standards.
3.1.2.5 Quality Inspection
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Quality inspection is conducted throughout production and before shipment. Inspections include appearance checks, dimensional measurement, position tolerance verification, and surface quality evaluation. Mechanical property testing and material verification are applied when required. This systematic inspection process helps identify issues early and ensures forged flanges meet both technical specifications and procurement expectations.
3.1.2.6 Packaging and Order Delivery
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Forged flanges are packaged according to size, weight, and transportation method. Options include wooden cases, cartons, individual packaging, or customized solutions to protect sealing surfaces and edges. Orders are arranged for sea, air, or land delivery, with clear labeling and documentation to support smooth handling, customs clearance, and on-site receiving.
3.1.2.7 After-Sales Service
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After delivery, after-sales service supports clients in handling quality or quantity concerns. If forged flanges are found with confirmed quality issues or shortages, solutions such as returns, exchanges, or restocking are provided. This service approach helps clients reduce procurement risk and maintain stable supply for ongoing projects and future orders.
3.1.3 Application of Forged Flanges:
Forged flanges are widely applied in industrial systems where pressure resistance, structural strength, and long-term reliability are critical. Their dense grain structure and stable dimensions make them suitable for pipelines, rotating equipment, and heavy-duty assemblies across multiple industries.
Industry | Typical Products (≥5) | Application Details |
Oil and Gas | Welding neck flanges, slip-on flanges, blind flanges, flange connectors, pipeline flange joints | In oil and gas systems, forged flanges are used in high-pressure transmission lines, wellhead equipment, and processing units. Welding neck and blind forged flanges are preferred for their superior load distribution and sealing reliability under fluctuating pressure and temperature. Forging improves grain continuity, reducing the risk of leakage or fatigue failure during long-term operation. These forged steel flanges are commonly installed in upstream, midstream, and downstream systems where safety margins are strictly controlled and shutdown costs are extremely high. |
Petrochemical Industry | Reactor flanges, heat exchanger flanges, pump inlet flanges, valve connection flanges, pressure vessel flanges | Petrochemical equipment operates under corrosive media, elevated temperature, and continuous load. Forged flanges provide better internal density than cast alternatives, helping resist cracking and deformation. Carbon steel forged flanges and alloy steel forged flanges are widely used depending on media and temperature. Precise machining of sealing faces ensures reliable gasket performance, while forging integrity supports long service life in reactors, exchangers, and fluid transfer systems. |
Power Generation | Steam pipeline flanges, turbine flanges, boiler flanges, condenser flanges, pressure system flanges | In power plants, forged flanges connect steam, water, and thermal systems that experience high pressure and thermal cycling. Alloy steel forged flanges are often selected for elevated temperature resistance and creep strength. Forging ensures stable mechanical properties and reduces internal defects that could lead to sudden failure. These forged flanges support long maintenance cycles and help maintain system efficiency and operational safety. |
Marine and Shipbuilding | Seawater pipeline flanges, engine room flanges, ballast system flanges, deck piping flanges, exhaust system flanges | Marine environments demand strong resistance to vibration, load variation, and corrosion. Forged flanges offer higher structural reliability compared with fabricated alternatives. Stainless steel forged flanges and carbon steel forged flanges with protective surface treatment are commonly used. Their dense structure improves fatigue resistance, while accurate machining ensures proper alignment during onboard installation, reducing maintenance frequency during vessel operation. |
Water, Steam, and Heavy Industry | Water supply flanges, steam distribution flanges, industrial pump flanges, compressor flanges, hydraulic system flanges | In water treatment, steam transport, and heavy industrial equipment, forged flanges are used where stable sealing and mechanical strength are required. Carbon steel forged flanges are widely applied due to cost efficiency and durability. Forging improves impact resistance and load-bearing capacity, making these flanges suitable for continuous operation, large-diameter pipelines, and systems exposed to pressure fluctuation or mechanical stress. |
3.1.4 Surface Treatment We Can Provide:
Surface treatment improves corrosion resistance, surface durability, and appearance of forged flanges while supporting long-term performance in demanding environments. Different treatment methods are selected based on material type, operating conditions, and installation requirements to ensure reliable service life.
Treatment Category | Common Methods | Detailed Description |
Electrochemical Treatments | Electroplating, Anodizing, Electropolishing | Electrochemical surface treatments use electrical current to modify or protect the surface of forged flanges. Electroplating adds a protective metal layer that improves corrosion resistance and appearance. Anodizing, mainly applied to non-ferrous materials, increases surface hardness and oxidation resistance. Electropolishing smooths microscopic surface irregularities, reducing contamination risk and improving sealing performance. These methods are suitable for forged flanges used in controlled industrial systems where clean surfaces, stable coating thickness, and consistent protection are required over long operating periods. |
Chemical Treatments | Passivation, Chemical Blackening, Phosphating, Pickling | Chemical treatments rely on controlled chemical reactions to enhance surface stability. Passivation removes free iron and improves corrosion resistance, especially for stainless steel forged flanges. Phosphating creates a conversion layer that improves wear resistance and coating adhesion. Chemical blackening offers mild corrosion protection and reduced light reflection. Pickling removes scale formed during forging. These treatments are often selected for forged flanges used in chemical processing, water systems, and assemblies requiring clean and stable surface conditions. |
Electrostatic Adsorption Treatments | Powder Coating, Electrostatic Painting, Epoxy Coating | Electrostatic adsorption treatments apply coatings evenly through charged particles attracted to the flange surface. Powder coating and electrostatic painting form uniform, durable layers with good resistance to corrosion and abrasion. Epoxy coatings are commonly used for outdoor or buried piping systems. These treatments protect forged flanges from environmental exposure while improving appearance. They are widely used in pipelines, infrastructure projects, and industrial installations where long-term surface protection and visual consistency are required. |
Mechanical Treatments | Shot Blasting, Sand Blasting, Grinding, Polishing | Mechanical surface treatments physically modify the flange surface to improve cleanliness, texture, or finish. Shot blasting and sand blasting remove scale and surface impurities formed during forging, improving coating adhesion. Grinding and polishing refine sealing surfaces and exposed areas to meet installation and appearance requirements. These methods are essential preparation steps for forged flanges, ensuring dimensional accuracy, clean contact surfaces, and stable performance in sealing and assembly applications. |
Physical Treatments | Thermal Spraying, Heat Treatment Surface Control, Surface Hardening | Physical treatments enhance surface performance through heat or energy-based processes. Thermal spraying applies protective layers that improve wear or corrosion resistance. Surface hardening increases resistance to mechanical wear in specific areas. Controlled heat-related surface treatments help stabilize surface properties after forging. These methods are suitable for forged flanges used in heavy industrial equipment, high-load connections, and systems exposed to abrasion or mechanical stress during long-term operation. |
A professional technical team is essential when selecting a flange forging factory. Engineers must be able to correctly interpret drawings, pressure classes, tolerances, and surface requirements. Early technical review helps determine suitable forging methods, machining allowances, and material grades. This capability reduces production errors, prevents repeated revisions, and ensures forged flanges are manufactured according to real application conditions rather than theoretical assumptions.
Strong production capacity ensures orders can be completed within planned schedules, especially for projects with tight timelines. A reliable flange forging factory should have access to multiple forging lines and CNC machining resources to handle different sizes and quantities. Balanced capacity between forging and machining prevents bottlenecks, helping clients avoid delivery delays that could impact installation and project progress.
A strict quality management system is critical for forged flanges used in pressure and load-bearing systems. Standardized inspection procedures, material traceability, and process records help ensure consistency across production batches. Factories operating under ISO 9001 management are better equipped to control risks related to dimensional deviation, mechanical performance, and surface defects, providing buyers with greater confidence in long-term reliability.
A comprehensive supply chain allows a flange forging factory to control raw material sourcing, forging, machining, surface treatment, and logistics. Stable material suppliers reduce variation in chemical composition and mechanical properties. Coordinated factories and internal teams help avoid mismatched processes and unnecessary handovers, resulting in more predictable quality, cost control, and delivery schedules for forged flanges.
Beyond production, a comprehensive service system supports buyers throughout the entire order cycle. This includes quotation support, technical clarification, production tracking, inspection coordination, and documentation preparation. Clear communication between sales, technical, production, and quality teams reduces misunderstandings and helps buyers manage procurement more efficiently, especially when handling repeat or long-term flange forging projects.
Flexible payment methods and delivery terms help buyers manage cash flow and logistics planning. A qualified flange forging factory should support commonly used international trade terms and structured payment options. This flexibility allows buyers to align procurement with project timelines, reducing financial pressure while maintaining stable supply and cooperation over multiple orders.
Global shipping capability is important for overseas buyers sourcing forged flanges from China. The factory or service provider should be familiar with export packaging, documentation, and international transportation requirements. Experience with sea, air, and land shipment helps reduce customs risks and transit damage, ensuring forged flanges arrive in good condition and within expected delivery windows.
Quality assurance services protect buyers from procurement risk. A reliable flange forging factory should clearly define responsibility for quality or quantity issues. Services such as returns, exchanges, or restocking support demonstrate confidence in product quality and help buyers maintain supply continuity. This assurance is especially valuable for projects where replacement delays could lead to significant operational losses.
Quality is ensured through a fully equipped quality inspection center and a structured inspection flow covering the entire production process. Raw materials are verified before forging, in-process checks are carried out during forging and machining, and final inspections confirm dimensions, tolerances, and surface quality. This complete quality assurance system helps maintain consistency and reduces risk for long-term supply.
Pricing for flange forged OEM services depends on multiple factors, including raw material grade, flange size, tolerance requirements, surface treatment, and order volume. Process complexity and machining requirements also influence cost. With direct access to forging and machining factories, real-time quotations are provided based on actual production conditions rather than estimated or generic pricing.
All pricing is based on meeting defined quality requirements. Under the same quality standards, costs are optimized through process planning and material control. Larger order quantities allow better utilization of forging and machining capacity, which helps reduce unit cost. Clear drawings and stable specifications also contribute to more efficient production and improved pricing conditions.
The minimum order quantity is not fixed and depends on factors such as flange size, material type, structural complexity, and forging method. Some forged flanges require dedicated tooling, while others can share existing processes. By reviewing your drawings under NDA protection, a practical MOQ can be evaluated based on actual production feasibility.
Delivery time depends on order quantity, process complexity, and scheduling requirements. In most cases, production is completed in around 30 days. For larger or repeat orders, production efficiency improves, helping maintain stable lead times. Even for more complex forged flanges, delivery is usually controlled within 45 days through coordinated process planning.
Multiple surface finishes are available through close cooperation with specialized surface treatment factories. Options include powder coating, galvanizing, passivation, shot blasting, polishing, and other treatments. The final solution is selected based on material type, application environment, and forging process, ensuring surface performance matches real operating conditions.
Forged flanges have been supplied to clients in more than 50 countries, covering Europe, North America, South America, Africa, Southeast Asia, and other regions. Experience with different export standards, packaging methods, and shipping routes helps ensure smooth delivery and reliable supply for international engineering and industrial projects.
Manufacturable size depends on material grade, thickness, geometry, and process complexity. Large diameters, thick sections, or special shapes require specific forging and machining routes. By reviewing 2D or 3D drawings under NDA protection, feasibility can be evaluated accurately, and suitable forging and machining solutions can be confirmed before production.
Common payment methods such as T/T and LC are supported, along with standard international delivery terms. If alternative arrangements are required, they can be discussed based on project conditions. Flexible payment and delivery options help align procurement planning with production schedules and overall project cash flow management.
HULK Metal operates as a flange forging service provider with strong factory resources. A complete internal team covers technical review, procurement coordination, production management, quality control, and international sales. This structure allows efficient integration of multiple factories while maintaining consistent quality standards and centralized communication.
Yes, samples can be provided. After molds are manufactured and debugged, a sample is forged, machined, and inspected according to the drawings. The sample is then sent for your evaluation and testing. Mass production only begins after sample approval, helping ensure the final products meet application and quality expectations.
A: You can get a quote in a shorter time by providing the following information at once:
1. 2D and 3D drawings of the Flange Forged. If neither is available, samples can be provided.
2. Quantity.
3. Delivery Terms.
4. Material, surface treatment, tolerance, and weight. If no 3D drawing is available, please provide the following information:
A deeper understanding of requirements is the foundation of quality. Our professional technical team reviews drawings, tolerances, pressure ratings, and application conditions in detail before production begins. This early involvement helps identify suitable forging methods, machining routes, and material grades, reducing misunderstandings and ensuring the final forged flanges match real operating requirements rather than assumptions.
A well-developed supply chain allows better control over every production stage. Closely coordinated forging factories, CNC machining resources, surface treatment partners, and logistics teams work under unified process planning. This integration reduces handover risks, stabilizes lead times, and ensures forged flanges maintain consistent quality across different production batches and order volumes.
Raw material quality directly affects flange performance. By closely cooperating with raw material factories, materials with stable chemical composition and mechanical properties are secured at more competitive prices under the same quality level. Incoming materials are inspected before forging, ensuring only qualified steel enters production and reducing hidden risks in forged steel flanges.
Strict production control is applied throughout forging and machining. Heating temperature, deformation ratio, and forging sequence are managed to maintain proper grain flow and density. Machining operations follow defined procedures to protect sealing surfaces and critical dimensions. This disciplined approach minimizes variability and helps forged flanges meet drawing requirements consistently.
Comprehensive quality inspection confirms that forged flanges meet technical and dimensional standards before shipment. Inspections include appearance, size, shape, position tolerance, and surface quality checks, along with material and mechanical testing when required. This layered inspection process helps detect issues early and ensures only qualified products are delivered to clients.
Proper packaging and delivery protect forged flanges after production. Packaging methods are selected based on flange size, weight, and transport conditions, helping prevent damage to sealing faces and edges. Coordinated delivery planning supports sea, air, and land shipment, ensuring forged flanges arrive in good condition and on schedule.
Thoughtful after-sales service extends quality assurance beyond delivery. Clients can verify both quality and quantity upon receipt. If confirmed quality issues or shortages occur, return, exchange, or restocking services are provided. This support reduces procurement risk and helps maintain stable supply for ongoing and future flange forging projects.
Quality control is a core aspect of HULK Metal’s forged flanges services, ensuring that every product meets strict specifications. Our inspection process covers dimensions, surface finish, mechanical properties, and raw material verification. Comprehensive pre-shipment checks, quantity verification, and customized inspections are conducted to guarantee consistent performance, safety, and reliability. By combining advanced equipment with experienced engineers, we minimize defects and deliver forged flanges that meet both technical and project-specific requirements.
Dimensional inspection verifies that all critical measurements, such as flange diameter, thickness, bolt circle, and hole alignment, meet drawing specifications. Using precision instruments, our engineers detect deviations early in production. Maintaining dimensional accuracy ensures proper fit during installation, reduces stress concentration, and prevents leakage in pipelines or pressure systems.
Custom inspection allows clients to specify additional checks, such as special dimensional tolerances, surface hardness tests, or non-destructive testing (NDT). HULK Metal accommodates these requirements, providing flexible and project-specific quality assurance to meet unique operational or regulatory demands.
Pre-shipment inspection confirms that all forged flanges meet design, dimensional, surface, and material standards before delivery. This final check helps prevent shipment of defective products, protects client interests, and ensures readiness for immediate installation upon arrival.
Material inspection verifies chemical composition and metallurgical quality. Steel grades, stainless steel, and alloy steels are checked before forging. Proper material selection and verification prevent internal defects, ensure corrosion resistance, and provide the necessary mechanical properties for long-lasting flange performance.
Quantity inspection ensures the ordered number of flanges matches the delivery documentation. Accurate counting prevents shortages or over-delivery, supports inventory planning, and maintains supply chain reliability, particularly for projects requiring coordinated installation schedules.
Mechanical testing evaluates tensile strength, yield strength, hardness, and impact resistance to confirm compliance with required standards. This inspection ensures forged flanges can withstand operational pressures, temperature fluctuations, and mechanical stress, reducing the risk of failure in critical industrial applications.
Surface inspection checks for roughness, cracks, scale, or other defects that may affect sealing or corrosion resistance. Both visual and instrumental methods are applied to guarantee uniform finishes. Proper surface quality ensures better gasket performance, coating adhesion, and long-term durability in demanding environments.
HULK Metal’s flange forging operations are supported by integrated factory resources that cover forging, CNC machining, surface treatment, and quality control. Our well-equipped factories and experienced teams ensure that forged flanges are produced with precision, consistency, and efficiency. From raw material processing to final inspection, each stage is tightly controlled, allowing us to deliver high-quality forged flanges that meet complex technical specifications and withstand demanding industrial applications worldwide.
Choosing HULK Metal for forged flanges ensures a reliable and efficient procurement experience. Our services cover the full OEM process, certified products, and timely delivery at competitive prices. Buyers benefit from high-quality forged steel flanges produced with precise control, robust technical support, and streamlined operations. By integrating production, inspection, surface treatment, and logistics, HULK Metal helps clients save time, reduce costs, and maintain consistent supply for demanding industrial applications.
This section highlights informative articles about forged flanges, covering design considerations, manufacturing processes, material selection, and surface treatments. Readers can gain insight into the advantages of hot die forging, CNC machining precision, and quality assurance practices. Articles also explore applications across industries such as oil and gas, petrochemical, power generation, and marine, helping engineers and procurement specialists understand how forged flanges improve reliability, durability, and performance in critical systems. Technical tips and best practices are included to support informed purchasing decisions.
This section showcases a range of other forged parts beyond flanges, including forged valves, couplings, shafts, gears, and brackets. Each part is displayed with high-quality images, clear titles, and detailed descriptions highlighting its material, forging process, and industrial application. The content emphasizes the precision, strength, and durability achieved through forging, helping potential clients understand how these components integrate into pipelines, machinery, and heavy equipment. It demonstrates HULK Metal’s expertise in producing diverse forged components for demanding engineering applications.
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Surface Anodized / Passivated / Polished / Powder Coating / Brushed / Customized
Name Aluminum Die Casting Accessories
Manufacturing According to Drawings
Materials Al-Mg Alloy / Al-Zn Alloy / Al-Si Alloy / Customized
Surface Anodized / Passivated / Polished / Powder Coating / Brushed / Customized
Aluminum Alloy 6063 / Customized
Profile Extrusion / Cutting / Deburring / CNC Process / Customized
Air conditioner / Frequency Converter / Communication Base Station / Computer / Electric Equipment / Customized
CE / ISO / RoHS / SGS / Customized
Anodizing / Sand Blasting / Painting / Chormating / Customized
Trademark printing / wooden box / plastic box / foam box / air film / Customized
Die Cast Aluminum Enclosures are widely used to protect electronic and industrial components in demanding environments.
We manufacture bike parts strictly according to customer drawings, covering drivetrain, braking, wheel, and structural components. Our OEM service integrates casting, CNC machining, surface treatment, packaging, and logistics under one managed process.
Name Aluminum Die Casting Washing Machine Bracket
Manufacturing According to Drawings
Materials Al-Mg Alloy / Al-Zn Alloy / Al-Si Alloy / Customized
Surface Anodized / Passivated / Polished / Powder Coating / Brushed / Customized
HULK Metal provides OEM Precision Die Casting Parts with full technical support, strict quality control, and reliable production.
HULK Metal delivers high-quality OEM casting aluminum brackets made to your exact drawings, using die casting, sand casting, or investment casting.
HULK Metal provides comprehensive Aluminium Die Casting Auto Parts solutions, covering engine, transmission, chassis, and electronic components. We meticulously manage every stage, from mold design, die casting, CNC machining, and surface treatment, to strict quality control, packaging, and delivery.
HULK Metal has provided excellent Agricultural Machinery Casting services to hundreds of customers worldwide.
HULK Metal supplies Automobile Casting Components for global automotive manufacturers and bulk buyers seeking reliable OEM partners in China. With ISO 9001 certified factories and mature casting experience, we produce Automobile Casting Parts strictly according to drawings.
HULK Metal specializes in OEM/ODM casting of Custom Flail Mower Hammer Blades. With an ISO 9001-certified factory, advanced foundry capabilities, and end-to-end quality control, we deliver wear-resistant, dimensionally accurate blades tailored to your machinery.
Aluminum Alloy 6063 / Customized
Profile Extrusion / Cutting / Deburring / CNC Process / Customized
Air conditioner / Frequency Converter / Communication Base Station / Computer / Electric Equipment / Customized
CE / ISO / RoHS / SGS / Customized
Anodizing / Sand Blasting / Painting / Chormating / Customized
Trademark printing / wooden box / plastic box / foam box / air film / Customized
Die Casting Engine Parts are widely used in automotive and industrial power systems where strength, accuracy, and heat dissipation matter.
HULK Metal is a trusted manufacturer of Custom Sickle Guards Casting, serving bulk buyers worldwide. Our ISO 9001-certified foundry delivers high-precision sickle guards in ductile iron, grey iron, or cast steel—tailored to your drawings.
HULK Metal delivers precise and durable Water Glass Sand Casting components for industrial and OEM applications. Combining advanced factories, CNC machining, comprehensive surface treatments, and rigorous quality control, we ensure reliable production and timely delivery.
Our Stainless Steel Castings are produced for demanding industrial applications where strength, corrosion resistance, and consistency matter. As an OEM-focused supplier, we manufacture strictly according to your drawings using sand casting, investment casting, or lost foam casting.
Resin sand casting is widely used for medium and large metal parts requiring good surface finish and stable structure.
HULK Metal provides professional reducer housing casting services, offering horizontal, vertical, integral, and split designs. Our complete OEM solutions include casting, CNC machining, surface treatment, quality inspection, packaging, and global delivery.
Name Precision Casting Castings
Manufacturing Methods Manufacturing According to Drawings
Materials Cast Iron / Aluminum / Stainless Steel / Carbon Steel / Gray Iron / Customized
Process Investment Casting / Ceramic Mold Casting / Metal Mold Casting, Die Casting, Lost Foam Casting
Surface Treatment Sandblasting / Shot Blasting / Powder Coating / Customized
Test Content & Data 1. Chemical composition; 2. Mechanical properties; 3. Metallographic inspection; 4. Inspection of appearance, size, shape, and position tolerance; 5. Surface roughness;
HULK Metal operates as a trusted Casting Motorcycle Parts manufacturer in China, specializing in aluminum die casting and sand casting motorcycle parts. Backed by ISO 9001 standards, our factories deliver precision OEM components tailored to your drawings.
Lost wax casting is ideal for producing complex metal parts with smooth surfaces and tight tolerances. As an experienced lost wax casting foundry in China, HULK Metal provides reliable OEM services based on your drawings.
HULK Metal provides comprehensive lost foam casting solutions for OEM projects, covering mold design, casting, CNC machining, surface treatment, and quality inspection.
Investment casting produces complex metal parts with smooth surfaces and tight tolerances through a precise lost wax process.
HULK Metal delivers ISO 9001-certified grey iron casting services with precision, durability, and cost efficiency.
HULK Metal has provided excellent metal casting services to hundreds of ductile iron casting parts purchasers around the world. More than 20 industries, including automobile manufacturing, machinery manufacturing, home appliance manufacturing, construction, agriculture, and energy, have used our products.
HULK Metal delivers high-quality custom cast iron drain pipe fittings through ISO 9001-certified factories. Our experienced team ensures precise production from drawings, rigorous quality control, and timely delivery.
You will get higher quality Centrifugal Casting Castings. HULK Metal has an advanced centrifugal casting production line that can produce cast iron, gray iron, ductile iron, stainless steel, high manganese steel and other raw materials.
HULK Metal has provided excellent metal casting services to hundreds of Cast Iron Casting parts purchasers around the world. Our products have been used in more than 20 industries, such as automobile manufacturing, machinery manufacturing, home appliance manufacturing, construction industry, etc.
Forging small parts are widely used where strength, consistency, and tight tolerances matter. HULK Metal provides OEM services for custom forging small parts based on drawings or samples.
HULK Metal provides premium forged flanges manufactured with hot die forging and precise CNC machining. Our services cover raw material selection, surface treatment, strict quality inspection, and timely delivery.
Custom forged parts from HULK Metal offer superior strength, reliability, and performance across industries like automotive, construction, and energy. Using advanced forging techniques and a comprehensive quality control system, we provide parts made to your exact specifications.
Closed die forged parts are produced by shaping heated metal within precision dies, delivering higher strength, consistent grain flow, and tight tolerances.
HULK Metal’s forged components include manufacturing processes, materials, surface treatments, and quality control measures. From automotive to industrial applications, our forged components deliver superior performance and reliability
Manufacturing According to Drawings
Process Casting / Forging / Stamping
CNC Machining Turning, Milling, Planing, Drilling, Grinding, Drilling, Boring
Materials 304 / 316L / Aluminum Alloy / Customized
Manufacturing According to Drawings
Process Casting / Forging / Stamping
CNC Machining Turning, Milling, Planing, Drilling, Grinding, Drilling, Boring
Materials Carbon Steel / ND Steel / Stainless Steel / Aluminum Alloy / Customized
Manufacturing According to Drawings
Process Casting / Hot Forging
CNC Machining Turning, Milling, Planing, Drilling, Grinding, Drilling, Boring
Materials Carbon Steel / ND Steel / Stainless Steel / Aluminum Alloy / Customized
HULK Metal specialises in high-quality forged stainless steel parts and offers comprehensive OEM services. As a certified ISO 9001 factory in China, we ensure strict quality control, competitive pricing, and rapid order turnaround.
Name Motorcycle Parts Forging Parts
Manufacturing Methods Manufacturing According to Drawings
Materials Carbon Steel / Alloy Steel / Stainless Steel / Aluminum / Customized
Process Hot Forging / Cold Forging / Free Forging / Mold Forging / CNC Machining / Rilling Forging / Die Forging / Customized
Manufacturing According to Drawings
Process Hot Forging / Die Forging / Custom
CNC Machining Turning, Milling, Planing, Drilling, Grinding, Drilling, Boring
Materials Carbon Steel / ND Steel / Stainless Steel / Aluminum Alloy / Customized
Name Motorcycle Accessories Forging Parts
Manufacturing Methods Manufacturing According to Drawings
Materials Carbon Steel / Alloy Steel / Stainless Steel / Aluminum / Customized
Process Hot Forging / Cold Forging / Free Forging / Mold Forging / CNC Machining / Rilling Forging / Die Forging / Customized
Name Mining Machinery Forging Parts
Manufacturing Methods Manufacturing According to Drawings
Materials Carbon Steel / Alloy Steel / Stainless Steel / Customized
Process Hot Forging / Cold Forging / Free Forging / Mold Forging / CNC Machining / Die Forging / Customized
Custom hot forging parts are produced through controlled heating, precision die forging, machining, inspection, and delivery. HULK Metal supports OEM projects based on drawings, combining experienced technical teams, coordinated factories, and ISO 9001 management.
Name Cold Forging Parts
Manufacturing Methods Manufacturing According to Drawings
Materials 20Cr Steel / 20CrMo Steel / 20CrMnTi Steel /Aluminum / Aluminum Alloy / Customized
Process Cold Forging
Carbon Steel Forged Parts are widely used in applications where strength, durability, and dimensional stability are important. HULK Metal supplies Custom Carbon Steel Forged Parts through full OEM services, from drawing review, forging, machining, surface treatment to delivery.
Name Bicycle Accessories Forging Parts
Manufacturing Methods Manufacturing According to Drawings
Materials Carbon Steel / Alloy Steel / Stainless Steel / Aluminum / Customized
Process Hot Forging / Cold Forging / Free Forging / Mold Forging / CNC Machining / Rilling Forging / Die Forging / Customized
Name Auto Parts Forging Parts
Manufacturing Methods Manufacturing According to Drawings
Materials Carbon Steel / Alloy Steel / Stainless Steel / Aluminum / Customized
Process Hot Forging / Cold Forging / Free Forging / Mold Forging / CNC Machining / Rilling Forging / Die Forging / Customized
Name Auto Accessories Forging Parts
Manufacturing Methods Manufacturing According to Drawings
Materials Carbon Steel / Alloy Steel / Stainless Steel / Aluminum / Customized
Process Hot Forging / Cold Forging / Free Forging / Mold Forging / CNC Machining / Rilling Forging / Die Forging / Customized
Name Alloy Steel Forging Parts
Manufacturing Methods Manufacturing According to Drawings
Materials Alloy Steel
Process Hot Forging / Free Forging / Mold Forging / CNC Machining / Rilling Forging / Die Forging / Customized
Name Agricultural Machinery Accessories Forging Parts
Manufacturing Methods Manufacturing According to Drawings
Materials Carbon Steel / Alloy Steel / Stainless Steel / Customized
Process Hot Forging / Free Forging / Mold Forging / CNC Machining / Customized
HULK Metal is a manufacturer of sheet metal stamping parts in China. We have advanced stamping equipment, experienced workers, and perfect after-sales service to complete higher-quality orders faster at a lower price.
HULK Metal is committed to providing high-quality sheet metal automotive parts OEM services to customers around the world. We have a complete supply chain to provide you with better OEM services.
HULK Metal has developed over 16 years to become an experienced metal stamping manufacturer. We can manufacture higher quality steel metal stamping parts from carbon steel, stainless steel, and alloy steel. We have a complete quality control system.
HULK Metal has provided excellent metal stamping services to hundreds of stainless steel metal stamping parts purchasers around the world. Our products have been used in more than 20 industries, such as automobile manufacturing, machinery manufacturing, home appliance manufacturing, construction industry, etc.
HULK Metal is a professional manufacturer of home appliance metal stamping parts that has provided metal stamping services for the home appliance manufacturing industry for over 16 years.
Aluminum Alloy 6063 / Customized
Profile Extrusion / Cutting / Deburring / CNC Process / Customized
Air conditioner / Frequency Converter / Communication Base Station / Computer / Electric Equipment / Customized
CE / ISO / RoHS / SGS / Customized
Anodizing / Sand Blasting / Painting / Chormating / Customized
Trademark printing / wooden box / plastic box / foam box / air film / Customized
As a metal stamping service supplier with a strong production capacity, HULK Metal has 5 sets of stamping machines with a capacity of 315 tons, 5 sets of 200 tons capacity, 5 sets of 80 tons capacity and 5 sets of 60 tons capacity. We can provide customized manufacturing services for copper metal stamping parts of 0.1mm~10mm. Products can be certified by CE, SGS, GB, and other standards.
HULK Metal has 20 precision stamping machines that can process precision metal stamping parts from 0.05mm to 5mm. Our quality inspection team will strictly test the performance and parameters of the product to ensure that the quality of the product can meet your requirements.
HULK Metal has provided excellent metal stamping services for more than 20 industries such as automobiles, home appliances, machinery, and other manufacturing or construction industries.
HULK Metal has an experienced technical team that can customize complete custom stamping parts OEM solutions. We can supply products certified by CE, SGS, etc. and comprehensive services such as shipping and after-sales. You can buy metal stamping parts you want more easily at HULK Metal.
HULK Metal provides Custom Construction Metal Stamping Services for bulk buyers who demand precision, strength, and consistency.
HULK Metal is a professional manufacturer of metal stamping parts. Our factory has more automated stamping machines and advanced product quality inspection instruments so that we can complete higher quality carbon steel metal stamping parts faster.
HULK Metal provides professional brass metal stamping services with full-process technical support and production capacity. We specialize in manufacturing custom brass metal stamping parts that meet CE, GB, and SGS standards.
HULK Metal's factory has 20 stamping machines, 10 CNC machines, and perfect-quality inspection instruments. We can provide complete OEM services for metal stamping parts. We can manufacture metal stamping parts in automobiles, construction, household appliances, and other industries with copper, steel, and aluminum as raw materials.
HULK Metal is a professional Auto Accessories Metal Stamping Parts manufacturer with over 16 years of experience. We have a complete supply chain to supply you with complete metal stamping OEM services.
HULK Metal has been engaged in the manufacture of Aluminum Sheet Metal Stamping Parts for many years. We focus more on the needs of our customers and develop complete production solutions accordingly.
HULK Metal has been engaged in the stamping service of aluminum metal parts since the second half of the 20th century. Up to now, HULK Metal has been able to produce metal stamping parts with a thickness of 0.1mm~2mm using 1000~7000 aluminum alloy plates as raw materials.
HULK Metal provides high-quality Aluminum CNC Machining Parts, combining advanced multi-axis CNC machining, precise surface treatments, and strict quality control.
Aluminum Alloy 6063 / Customized
Profile Extrusion / Cutting / Deburring / CNC Process / Customized
Air conditioner / Frequency Converter / Communication Base Station / Computer / Electric Equipment / Customized
CE / ISO / RoHS / SGS / Customized
Anodizing / Sand Blasting / Painting / Chormating / Customized
Trademark printing / wooden box / plastic box / foam box / air film / Customized
HULK Metal delivers high-precision CNC auto parts through ISO 9001-certified factories in China, offering full OEM machining services—from design review and material sourcing to surface treatment, rigorous inspection, and global delivery.
Name CNC Machining Aluminum Die Casting Parts
Manufacturing According to Drawings
Materials Al-Mg Alloy / Al-Zn Alloy / Al-Si Alloy / Customized
Surface Anodized / Passivated / Polished / Powder Coating / Brushed / Customized
Precision Machining for Agricultural Parts requires stable accuracy, durable materials, and consistent production control. HULK Metal provides Agricultural Sector Parts Machining Services based on customer drawings, covering turning, milling, drilling, and finishing.
Precision bicycle part machining demands tight tolerances, lightweight strength, and flawless surface finishes—exactly what HULK Metal delivers.
HULK Metal delivers precision custom flange machining based on your drawings, using advanced 3-, 4-, and 5-axis CNC equipment in ISO 9001-certified factories.
Ductile Iron / Stainless Steel / Gray Iron / Cast Steel / Customized
+/-0.01mm
CT9
Casting / CNC / Customized
≥1.6Mpa, ≤6.4Mpa
Painting / Plating / Polishing / Customized
Anti-collision / Brand Logo / Customized
CB / CE / URV / Customized
Sewage Pump Impellers
Manufacturing According to Drawings
QT (Ductile Iron) HT (Grey Cast Iron) Cast Steel (ZG25)
Gray cast iron, ductile iron pump impellers: 1. Resin sand casting; 2. Lost foam casting; 3. Coated sand casting;
Cast steel pump impellers: precision casting, lost wax casting.
Powder spraying, Painting
Sewage Pump Housing
Manufacturing According to Drawings
QT (Ductile Iron) HT (Grey Cast Iron) Cast Steel (ZG25)
Gray cast iron, ductile iron Sewage Pump Housing: 1. Resin sand casting; 2. Lost foam casting; 3. Coated sand casting;
Cast steel Sewage Pump Housing: precision casting, lost wax casting.
Powder spraying, Painting
Sewage Pump Bases
Manufacturing According to Drawings
QT (Ductile Iron) HT (Grey Cast Iron) Cast Steel (ZG25)
Gray cast iron, ductile iron Sewage Pump Bases: 1. Resin sand casting; 2. Lost foam casting; 3. Coated sand casting;
Cast steel Sewage Pump Bases: precision casting, lost wax casting.
Powder spraying, Painting
Pipeline pump Motor Bracket
Manufacturing According to Drawings
QT (Ductile Iron) HT (Grey Cast Iron) Cast Steel (ZG25)
Gray cast iron, ductile iron Pipeline pump Motor Bracket: 1. Resin sand casting; 2. Lost foam casting; 3. Coated sand casting;
Cast steel Pipeline pump Motor Bracket: precision casting, lost wax casting.
Powder spraying, Painting
Pipeline Pump Impellers
Manufacturing According to Drawings
QT (Ductile Iron) HT (Grey Cast Iron) Cast Steel (ZG25)
Gray cast iron, ductile iron Pipeline Pump Impellers: 1. Resin sand casting; 2. Lost foam casting; 3. Coated sand casting;
Cast steel Pipeline Pump Impellers: precision casting, lost wax casting.
Powder spraying, Painting
Pipeline Pump Covers
Manufacturing According to Drawings
QT (Ductile Iron) HT (Grey Cast Iron) Cast Steel (ZG25)
Gray cast iron, ductile iron Pipeline Pump Covers: 1. Resin sand casting; 2. Lost foam casting; 3. Coated sand casting;
Cast steel Pipeline Pump Covers: precision casting, lost wax casting.
Powder spraying, Painting
Pipeline Pump Housings
Manufacturing According to Drawings
QT (Ductile Iron) HT (Grey Cast Iron) Cast Steel (ZG25)
Gray cast iron, ductile iron Pipeline Pump Housings: 1. Resin sand casting; 2. Lost foam casting; 3. Coated sand casting;
Cast steel Pipeline Pump Housings: precision casting, lost wax casting.
Powder spraying, Painting
Centrifugal Pump Impellers
Manufacturing According to Drawings
QT (Ductile Iron) HT (Grey Cast Iron) Cast Steel (ZG25)
Gray cast iron, ductile iron pump impellers: 1. Resin sand casting; 2. Lost foam casting; 3. Coated sand casting;
Cast steel pump impellers: precision casting, lost wax casting.
Powder spraying, Painting
1. Chemical composition; 2. Mechanical properties; 3. Metallographic inspection; 4. Inspection of appearance, size, shape, and position tolerance; 5. Surface roughness;
Centrifugal Pump Covers
Manufacturing According to Drawings
QT (Ductile Iron) HT (Grey Cast Iron) Cast Steel (ZG25)
Gray cast iron, ductile iron pump covers 1. Resin sand casting; 2. Lost foam casting; 3. Coated sand casting;
Cast steel pump covers: precision casting, lost wax casting.
Powder spraying, Painting
Name Centrifugal Pump Bottom Plates
Manufacturing According to Drawings
QT (Ductile Iron) HT (Grey Cast Iron) Cast Steel (ZG25)
Gray cast iron, ductile iron Centrifugal Pump Bottom Plates: 1. Resin sand casting; 2. Lost foam casting; 3. Coated sand casting;
Cast steel Centrifugal Pump Bottom Plates: precision casting, lost wax casting.
Powder spraying, Painting
Manufacturing According to Drawings
QT (Ductile Iron) HT (Grey Cast Iron) Cast Steel (ZG25)
Gray cast iron, ductile iron pump Housings: 1. Resin sand casting; 2. Lost foam casting; 3. Coated sand casting;
Cast steel pump Housings: precision casting, lost wax casting.
Ductile Iron / Stainless Steel / Gray Iron / Cast Steel / Customized
+/-0.01mm
CT9
Casting / CNC / Customized
≥1.6Mpa, ≤6.4Mpa
Painting / Plating / Polishing / Customized
Anti-collision / Brand Logo / Customized
CB / CE / URV / Customized
Ductile Iron / Stainless Steel / Gray Iron / Cast Steel / Customized
+/-0.01mm
CT9
Casting / CNC / Customized
≥1.6Mpa, ≤6.4Mpa
Painting / Plating / Polishing / Customized
Anti-collision / Brand Logo / Customized
CB / CE / URV / Customized
Ductile Iron / Stainless Steel / Gray Iron / Cast Steel / Customized
+/-0.01mm
CT9
Casting / CNC / Customized
≥1.6Mpa, ≤6.4Mpa
Painting / Plating / Polishing / Customized
Anti-collision / Brand Logo / Customized
CB / CE / URV / Customized
Ductile Iron / Stainless Steel / Gray Iron / Cast Steel / Customized
+/-0.01mm
CT9
Casting / CNC / Customized
≥1.6Mpa, ≤6.4Mpa
Painting / Plating / Polishing / Customized
Anti-collision / Brand Logo / Customized
CB / CE / URV / Customized
Ductile Iron / Stainless Steel / Gray Iron / Cast Steel / Customized
+/-0.01mm
CT9
Casting / CNC / Customized
≥1.6Mpa, ≤6.4Mpa
Painting / Plating / Polishing / Customized
Anti-collision / Brand Logo / Customized
CB / CE / URV / Customized
Ductile Iron / Stainless Steel / Gray Iron / Cast Steel / Customized
+/-0.01mm
CT9
Casting / CNC / Customized
≥1.6Mpa, ≤6.4Mpa
Painting / Plating / Polishing / Customized
Anti-collision / Brand Logo / Customized
CB / CE / URV / Customized
Ductile Iron / Stainless Steel / Gray Iron / Cast Steel / Customized
+/-0.01mm
CT9
Casting / CNC / Customized
≥1.6Mpa, ≤6.4Mpa
Painting / Plating / Polishing / Customized
Anti-collision / Brand Logo / Customized
CB / CE / URV / Customized
Ductile Iron / Stainless Steel / Gray Iron / Cast Steel / Customized
+/-0.01mm
CT9
Casting / CNC / Customized
≥1.6Mpa, ≤6.4Mpa
Painting / Plating / Polishing / Customized
Anti-collision / Brand Logo / Customized
CB / CE / URV / Customized
Ductile Iron / Stainless Steel / Gray Iron / Cast Steel / Customized
+/-0.01mm
CT9
Casting / CNC / Customized
≥1.6Mpa, ≤6.4Mpa
Painting / Plating / Polishing / Customized
Anti-collision / Brand Logo / Customized
CB / CE / URV / Customized
Ductile Iron / Stainless Steel / Gray Iron / Cast Steel / Customized
+/-0.01mm
CT9
Casting / CNC / Customized
≥1.6Mpa, ≤6.4Mpa
Painting / Plating / Polishing / Customized
Anti-collision / Brand Logo / Customized
CB / CE / URV / Customized
Our J Hooks and J Cups for Power Rack OEM services are designed for brands and wholesalers sourcing in volume. HULK Metal supports full-process manufacturing from drawings, covering stamping, welding, machining, and surface treatment under ISO 9001 control.
Fitness Equipment Extrusions are widely used for frames, rails, supports, and structural connectors in commercial gym equipment. HULK Metal provides OEM production covering extrusion forming, precision cutting, CNC machining, welding, and surface treatment.
HULK Metal provides Weight Plate Holder OEM services for global gym equipment brands and wholesalers seeking dependable large scale supply. From standard weight plate racks to custom bumper plate storage solutions, our factories support cutting, welding, bending, machining, and finishing under ISO 9001 systems.
Fitness Equipment Parts often involve complex structures, load-bearing requirements, and strict consistency standards. HULK Metal provides Custom Fitness Equipment Parts through OEM production, supporting drawings or samples.
Exercise equipment parts form the structural and functional backbone of modern fitness machines. HULK Metal offers OEM services focused on custom exercise equipment parts manufactured strictly to drawings.
HULK Metal crafts Custom Workout Equipment Parts to your exact drawings—no job too complex. With full in-house metal fabrication and strict ISO controls, we deliver stronger, smoother, and more consistent parts than typical suppliers.
HULK Metal Crafts Gym Equipment Components with tighter tolerances and heavier-duty builds than most. We handle OEM requests from start to finish—stamping, welding, laser cutting, and forging—all under one roof.
HULK Metal delivers high-quality custom barbell rack OEM services backed by decades of metal fabrication expertise. Our ISO 9001-certified factories handle everything from raw material sourcing to final delivery. Whether you need power racks, squat racks, or wall-mounted systems, we produce precise, durable parts that meet your exact specifications.
HULK Metal is a trusted OEM supplier of custom gym equipment rack and parts, backed by ISO 9001-certified factories and full-sheet metal production capabilities. We manufacture power racks, squat racks, wall-mounted systems, and more—exactly to your drawings.
HULK Metal produces custom power racks from iron, steel, stainless steel, and aluminum using sheet metal, profiles, pipes, and strips. Our processes include stamping, CNC machining, welding, casting, and forging.
As a top metalworking service provider, we want to let every customer experience a sense of security in purchasing, sales, etc., and better realize their value through continuously defining new standards for products and services.
Room 901, Intelligent Park A Building, No. 86 ChunYang Rd, Qingdao, China 266109
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