English Views: 0 Author: Site Editor Publish Time: 2026-09-01 Origin: Site
Stainless steel forgings are forged components made from stainless steel for demanding industrial applications. The forging process gives the material good strength, toughness, and structural integrity.
Stainless steel forgings are used in many industries, including oil and gas, chemical processing, power generation, marine equipment, hydraulic systems, and industrial machinery.
This guide covers stainless steel forging grades, the open die forging process, common forged components, applications, standards, and how to choose a stainless steel forging supplier.
Stainless steel forgings are components made by heating stainless steel and forming it under mechanical pressure. Unlike machining, which removes material from a solid piece, forging changes the shape of the material through controlled deformation.
Open die forging is commonly used for large stainless steel forgings. The material is repeatedly upset, drawn, pierced, or formed to achieve the required shape and size.
Common stainless steel forgings include shafts, rings, flanges, valve components, hydraulic parts, and pressure equipment components.
A complete forging project may also include heat treatment, machining, and inspection to meet the final drawing and technical requirements.
Forging helps improve the internal structure and grain flow of stainless steel. This makes forged components suitable for applications where strength and reliability are important.
The main advantages of stainless steel forgings include:
Good strength and toughness
Good fatigue resistance
Good corrosion resistance
Improved internal structure
Consistent mechanical properties
Suitable for large and heavy-duty components
Forged stainless steel has a dense internal structure and good mechanical properties. It can handle heavy loads and demanding working conditions.
Controlled forging creates a continuous grain flow in the material. This can improve the ability of the component to handle repeated loading.
Stainless steel provides good resistance to rust and corrosion. Different grades can be selected for marine, chemical, wet, and other corrosive environments.
Forging helps reduce internal voids and improves the continuity of the metal structure. Proper forging deformation also helps develop a suitable grain flow for the component.
Open die forging is widely used to produce large and custom stainless steel forgings. The complete manufacturing process normally includes the following steps.
Certified stainless steel is selected according to the required grade and standard. Material certificates and heat numbers are checked to ensure material traceability.
The raw material is cut according to the forging plan and heated to the required forging temperature. Heating is controlled to ensure the material reaches a suitable and even temperature before forging.
The heated material is forged between the upper and lower dies. Common operations include upsetting, drawing, piercing, and forming.
The material is repeatedly deformed to achieve the required shape and improve its internal structure. Open die forging is suitable for large forgings, custom parts, and small production runs.
Heat treatment depends on the stainless steel grade and application. Common treatments include solution annealing for many austenitic and duplex stainless steels. Precipitation-hardening grades such as 17-4 PH may require solution treatment and aging.
Heat treatment helps achieve the required mechanical properties and reduce stresses from forging.
After heat treatment, the forging can be rough machined to remove scale and excess material. This also provides suitable surfaces and dimensions for further machining.
CNC machining is carried out according to the customer drawing. Machining can control dimensions, tolerances, holes, grooves, threads, and surface finish.
Depending on the project, the forging can be supplied as forged, heat treated, rough machined, or fully machined.
The finished forging is checked according to the customer requirements and applicable standards.
Inspection may include:
Chemical composition
Mechanical properties
Hardness
Dimensional inspection
Ultrasonic testing (UT)
Magnetic particle testing (MT)
Penetrant testing (PT)
Visual inspection
Inspection records and material documents can be provided for traceability.
Different stainless steel grades are selected based on strength, corrosion resistance, temperature, and application requirements.
Material | Main Features | Typical Applications |
|---|---|---|
304 / 304L | Good corrosion resistance and weldability | Industrial equipment, tanks, food equipment |
316 / 316L | Good corrosion resistance, especially in chloride environments | Chemical, marine, oil and gas equipment |
316Ti | Good corrosion resistance and high-temperature performance | Chemical and heat exchanger equipment |
321 / 321H | Good high-temperature strength | Power, heat exchangers, pressure equipment |
347 / 347H | Good high-temperature and corrosion resistance | Power, chemical and pressure equipment |
410 / 420 | High strength and wear resistance | Shafts, valves, pumps |
17-4 PH | High strength and good corrosion resistance | Hydraulic, industrial and aerospace parts |
Duplex Stainless Steel | High strength and good corrosion resistance | Oil and gas, marine, chemical equipment |
Super Duplex Stainless Steel | Very high strength and excellent corrosion resistance | Offshore, oil and gas, seawater systems |
The right stainless steel grade depends on the working environment and required mechanical properties.
Suitable for general industrial applications where good corrosion resistance and weldability are required.
Suitable for marine, chemical, and chloride-containing environments where higher corrosion resistance is needed.
These grades are often used for equipment operating at elevated temperatures, including heat exchangers, power equipment, and pressure equipment.
These martensitic stainless steels offer higher strength and wear resistance and are often used for shafts, valve parts, pumps, and other mechanical components.
17-4 PH stainless steel provides high strength with good corrosion resistance. It is used for hydraulic, industrial, aerospace, and other high-strength components.
Duplex and Super Duplex stainless steels combine high strength with good corrosion resistance. They are widely used in oil and gas, offshore, marine, chemical, and seawater applications.
Stainless steel forgings may be manufactured according to material standards, product standards, pressure equipment standards, and customer specifications. More than one standard may apply to a single project, so the drawing and technical specification should always be reviewed before production.
ASTM A182 is commonly used for forged stainless steel flanges, fittings, valves, and similar components for pressure and high-temperature service.
The standard includes requirements for material grade, chemical composition, heat treatment, mechanical properties, and hardness.
ASTM A276 mainly covers stainless steel bars and shapes. It is commonly used for stainless steel round bars, flat bars, and similar products.
For custom forged components, the applicable forging specification should be confirmed separately.
ASTM A484 provides general requirements for wrought stainless steel and related alloy products. It may cover dimensions, tolerances, surface condition, testing, marking, and certification.
It is often used together with a specific material or product standard.
EN standards may be used for stainless steel forgings and related products depending on the material, product type, and application.
Requirements may cover chemical composition, mechanical properties, heat treatment, dimensions, testing, and inspection.
Many custom forgings are manufactured according to customer drawings and technical specifications.
These requirements may include material grade, forging method, heat treatment, machining, dimensional tolerances, NDT, testing, and inspection documents.
Stainless steel forgings are used to make many different industrial components. The final product can be supplied as forged, heat treated, machined, or fully finished according to the project requirements.
Stainless steel forged shafts are used in pumps, turbines, marine equipment, and industrial machinery. They offer good strength, toughness, and corrosion resistance for demanding applications.
ETERNAL manufactures custom stainless steel shafts according to customer drawings and specifications.
Stainless steel forged rings are used in pressure vessels, heat exchangers, valves, pumps, and other industrial equipment. They provide good strength and structural integrity.
ETERNAL can produce custom forged rings in different sizes and stainless steel grades.
Stainless steel forged flanges are widely used in piping systems, pressure vessels, heat exchangers, and pumps. They are suitable for many high-pressure and corrosive applications.
ETERNAL supplies custom forged flanges based on customer drawings, material standards, and inspection requirements.
Stainless steel forgings are commonly used for valve bodies, bonnets, stems, discs, and other valve parts. These components require good strength, corrosion resistance, and dimensional accuracy.
ETERNAL manufactures custom valve forgings according to customer requirements.
Stainless steel forged parts are used in hydraulic cylinders, pumps, and other hydraulic equipment. They are suitable for applications involving high pressure and repeated loading.
ETERNAL manufactures custom hydraulic forgings with forging, heat treatment, machining, and inspection services.
Custom stainless steel forgings are used when standard parts cannot meet specific size, shape, or performance requirements.
ETERNAL manufactures custom forgings based on customer drawings, 3D models, and technical specifications.
Stainless steel forgings are used in industries where strength, corrosion resistance, and reliable performance are important.
Stainless steel forgings are used for valves, flanges, shafts, rings, and other oil and gas equipment. Duplex and Super Duplex grades are often selected for applications involving corrosive media and seawater.
Chemical equipment may require stainless steel components with good corrosion resistance. Forged stainless steel parts are used in pumps, valves, flanges, pressure equipment, and process systems.
Forged rings, flanges, and other stainless steel components are used in pressure vessels and heat exchangers. Material quality, heat treatment, dimensional control, and NDT are important for these applications.
Stainless steel forgings are used in pumps, shafts, valves, heat exchangers, and other power equipment. Material selection depends on temperature, pressure, and operating conditions.
Marine equipment requires materials with good resistance to water and corrosion. Stainless steel forgings are used for shafts, valve parts, flanges, and other marine components.
Stainless steel forgings are used in hydraulic cylinders, pumps, machinery, and other industrial equipment. Forging provides a strong base for components exposed to pressure and repeated loads.
ETERNAL manufactures custom stainless steel and alloy steel forgings with open die forging, heat treatment, machining, and inspection services under one roof.
ETERNAL has 2,000-ton open die forging equipment for the production of large and custom forgings.
Depending on the material, dimensions, and shape, we can produce large forgings weighing up to around 20 tons.
Our forging process is suitable for large forgings, custom components, and small production runs.
We work with many stainless steel grades, including:
304 / 304L
316 / 316L
316Ti
321 / 321H
347 / 347H
410
420
17-4 PH
Duplex
Super Duplex
Heat treatment is carried out according to the material grade and customer requirements.
Solution annealing, quenching, tempering, and aging treatments can be arranged for different stainless steel and alloy steel grades.
ETERNAL provides rough machining and CNC machining for custom forgings.
Machining can be completed according to customer drawings, including required dimensions, tolerances, holes, threads, and other features.
We provide dimensional inspection, hardness testing, mechanical testing, and non-destructive testing according to project requirements.
UT, MT, PT, and other inspection methods can be arranged according to the applicable standard and customer specification.
Material certificates and production records are maintained for traceability.
From raw material and forging to heat treatment, machining, and inspection, ETERNAL can manage the main manufacturing processes in-house.
This helps simplify supplier management and maintain consistent quality throughout the production process.
Ordering a custom stainless steel forging starts with clear technical information.
Customers can provide:
2D drawings
3D models
Material grade
Finished dimensions
Quantity
Technical specifications
The following requirements should be confirmed:
Stainless steel grade
Material standard
Forging method
Forging dimensions
Heat treatment
Delivery condition
The forging can be supplied in different conditions:
As forged
Heat treated
Rough machined
Fully machined
Inspection requirements may include:
Chemical composition
Mechanical properties
Hardness
UT
MT
PT
Dimensional inspection
EN 10204 3.1 / 3.2 certification
The typical production flow is:
Raw Material → Forging → Heat Treatment → Machining → Inspection → Packing → Delivery
Send us your drawing, material grade, quantity, and technical requirements.
Our team will review your requirements and provide a suitable forging solution and quotation.
Stainless steel forgings are metal components made by heating stainless steel and shaping it through controlled forging. The process helps improve the internal structure and mechanical properties of the material.
We can forge many stainless steel grades, including 304, 304L, 316, 316L, 316Ti, 321, 347H, 410, 420, 17-4 PH, Duplex, and Super Duplex stainless steels.
The available size depends on the material, shape, dimensions, and forging requirements. ETERNAL has 2,000-ton open die forging equipment and can produce large forgings weighing up to around 20 tons, depending on the product.
Yes. We manufacture custom stainless steel forgings according to customer drawings, 3D models, technical specifications, and quality requirements.
Yes. Forgings can be supplied as forged, heat treated, rough machined, or fully machined parts according to the customer drawing.
Heat treatment depends on the material grade and application. Common treatments include solution annealing, quenching, tempering, and aging for applicable grades.
Inspection may include chemical analysis, mechanical testing, hardness testing, dimensional inspection, UT, MT, PT, and visual inspection according to the project requirements.
Yes. EN 10204 3.1 or 3.2 certification can be provided when required by the customer or project specification.
