302 Stainless Steel

302 Stainless Steel

302 (UNS S30200) stainless steel is a commonly used stainless steel alloy with good corrosion resistance, mechanical properties and processing properties. Gnee’s 302 stainless steel can be made into various shapes of products, such as strips, wires, etc. It can be formed by cold working, stretching and bending processes, and is widely used in chemical, food processing, medical equipment and construction industries.

  • Plate/Tube/Bar/Coil/Wire/Flange/Fittings/Strip
  • High chromium/High nickel
  • Support Customize Size & Shapes
  • Free sample
  • AISI 302/UNS S30200/EN 1.4319/DIN X12CrNi188/JIS SUS302
  • Large Stock
  • Loading Port: Shanghai, Tianjin, Qingdao
  • 30-50 days, 7 days for stock goods
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Different Types Of 302 Stainless Steel
Gnee is a manufacturer, supplier, wholesaler, distributor, trader, stockist, and exporter of 302 Stainless Steel. We produce high quality 302 Steel to ISO standards in a wide range of grades, available in a variety of sizes, not limited to the following types, customized to your specific needs, Welcome to contact us for a quotation!
More information about 302 Stainless Steel
Gnee’s 302 Steel has been successfully exported to many countries, including Egypt, Kenya, Croatia, Kuwait, Oman, Russia, Azerbaijan, Kyrgyzstan, Singapore, Mexico, Venezuela, Turkey, India and more than 70 countries. Our professional team will provide you with the best solutions to ensure that you get products and services that meet your expectations!
Product Name302 Stainless Steel
Standard SpecificationASTM, DIN, SUS, AISI, SAE, ANSI, ASME, EN, JIS, BS, GB, UNS
TypePlate / Sheet / Strip / Wire / Coil / Round Rod / Flat Rod / Tube / Spring / Screw / Fasteners/…
DesignationsAISI: 302
UNS: S30200
EN: 1.4319
DIN: X12CrNi188
ASTM Standard SpecificationsASTM: ASTM A240/A240M, ASTM A276/A276M, ASTM A314, ASTM A484/A484M, ASTM A493, ASTM A666, ASTM A813/A813M, ASTM A814/A814M, ASTM A959

Test CertificateUnder Third-Party Inspection
Manufacturer Test Certificate
Customized ServicesSupport Customization
Packaging DetailsStandard Export Seaworthy Packing Or As Required
Wire forming
Formed into all types of washers, springs, screens, and cables
Food and beverage industry
Pressure containing applications
Sanitary or cryogenic applications, etc.
MachinabilitySlow speed and high feed: overcome the alloy’s tendency to work harden;
Chip Breakers: Chip breakers are recommended on all tools to deal with sticky chips;
WeldabilityResistance or Shielded Fusion Welding: Best Welding Methods;
Post-weld annealing: dissolves chromium carbides, recommended for maximum resistance to intergranular corrosion;
Hot WorkingHeats evenly to 2100°F: facilitates forging, stamping and head forming;
Below 1700°F: No processing;
Cold WorkingSignificant increase in stiffness: However, the material is quite ductile and can be easily stretched, spun and stamped;
Metamagnetism: Alloy 302 becomes magnetic after cold working;
Post-process annealing: necessary to maintain maximum corrosion resistance and non-magnetic condition
Parameters Of 302 Alloy Steel
ElementPercentage (%)
Carbon0.15 max
Manganese2.00 max
Phosphorus0.045 max
Sulfur0.030 max
Silicon0.75 max
Chromium17.00 – 19.00
Nickel8.00 – 10.00
Tensile Strength75,000 – 95,000 psi (515 – 655 MPa)
Yield Strength30,000 – 50,000 psi (205 – 345 MPa)
Elongation40 – 50%
Modulus of Elasticity28 x 10^6 psi (193 GPa)
Hardness (Rockwell B)85 max
Density0.29 lb/in^3 (8.03 g/cm^3)
Melting Point2550 – 2590°F (1400 – 1420°C)
Electrical Resistivity28.3 μΩ·cm
Thermal Conductivity9.4 BTU/hr-ft-°F (16.2 W/m-°C)
Coefficient of Thermal Expansion9.6 x 10^-6 in/in/°F (17.3 x 10^-6 m/m/°C)

What Is 302 Stainless Steel?

302 stainless steel has excellent toughness and good ductility, which makes it widely used in many applications. Its alloy formula has an 18% chromium content, which can provide good corrosion resistance, making it resistant to corrosion in general atmospheric conditions, as well as many weak acids and alkalis. And the 8% nickel content helps to improve the corrosion resistance and oxidation resistance of the material.

Compared with other austenitic stainless steels, 302 stainless steel has some unique properties. First, it is a non-magnetic material, which makes 302 stainless steel very useful in some special applications, such as equipment that requires electromagnetic shielding or applications that require non-magnetic materials. Secondly, 302 stainless steel is used in the annealed state, so it cannot be hardened by heat treatment. This limits its use in some applications that require high strength, but also makes it have good formability and manufacturing performance.

It should be noted that due to the higher carbon content in 302 stainless steel, it may be easier to form carbides during welding compared to 304 stainless steel, so attention should be paid to the selection and control of the welding process.

Why Choose Gnee Alloy 302 Manufacturer?

Gnee, as a Chinese stainless steel & nickel alloy supplier with 15 years of history, exports to 60+ countries. We provide various shapes of stainless steel & nickel alloy, including plates, coils, pipes, bars, and fittings. Gnee is committed to providing comprehensive stainless steel solutions, with excellent after-sales service, we support customization and ensure product quality.

In addition, our steel plate has been successfully exported to more than 60 countries such as Singapore, Malaysia, The United Arab Emirates, Oman, Turkey, Nigeria, Egypt, Kuwait, Indonesia, Qatar, and Kenya. Many regular customers come to visit our company and factory and make multiple orders.

What‘s The Feature Of Grade 302 Steel?

302 stainless steel exhibits good corrosion resistance, making it suitable for various environments. It can withstand exposure to general atmospheric conditions, as well as mild acids and alkaline solutions. However, it may not be as resistant to highly corrosive environments compared to some other stainless steel grades.

302 stainless steel offers a combination of strength and toughness. It has a higher carbon content compared to other austenitic stainless steels, which contributes to its increased strength. This makes it suitable for applications where moderate strength is required.

302 stainless steel is known for its excellent ductility and formability. It can be easily formed into different shapes, such as wires, bars, and sheets, using processes like cold working, drawing, spinning, and upsetting. This versatility allows for the production of various components and products.

One notable feature of 302 stainless steel is its non-magnetic nature. It remains non-magnetic even after cold working. This characteristic makes it suitable for applications where magnetic interference needs to be minimized or avoided, such as in certain electronic or scientific equipment.

302 stainless steel can withstand moderately high temperatures without significant loss of mechanical properties. It can be used in applications where exposure to elevated temperatures is expected, such as in certain industrial processes or heating elements.

302 stainless steel can be welded using common welding techniques, including resistance welding and shielded fusion methods. However, it is important to use appropriate welding procedures and control the heat input to prevent sensitization and maintain the desired properties.

After fabrication or cold working, 302 stainless steel typically requires post-fabrication annealing. This annealing process helps to restore the material’s maximum corrosion resistance, eliminate stresses, and achieve a non-magnetic condition if required.

What Services Does Gnee Provide?

Gnee can provide the following measurement services for stainless steel:

Dimensional Measurement: Measure dimensional parameters such as length, width and thickness by measuring instruments to ensure that the stainless steel is qualified and meets the design requirements.
Surface Measurement: Measure parameters such as flatness, bumpiness and surface roughness of the stainless steel surface to help ensure that the quality and surface condition of the stainless steel meets the requirements.
Thickness Measurement: Use thickness gauges to accurately measure the thickness of the stainless steel to ensure it meets the design requirements.
Material Measurement: Use material analysis instruments to measure the chemical composition and mechanical properties of the stainless steel to ensure that the quality and properties of the stainless steel meet the requirements.
Bending And Deformation Measurements: Use tools such as bending gauges and displacement sensors to measure and monitor the degree of bending and deformation of stainless steel to ensure that it is within the allowable range.

Ask Measurement service

Gnee can customize the size and shape of your stainless steel for your specific project needs. Custom design of stainless steel is carried out by a team of professional engineers and designers. Based on the project requirements and constraints, they will use calculation and simulation tools combined with experience and technical knowledge to optimize the stainless steel design to meet the specific needs of your different projects

● Adjustment of the thickness, width and length of stainless steel based on load calculations and strength requirements for structural design.
● The shape of the stainless steel can be designed according to the demand characteristics.
● If the convenience of installation and maintenance is considered, we can also add openings and passages for easy access and operation in the design for areas that require frequent maintenance.

Ask Customized Services

Sourcing Gnee stainless steel can provide the following further processing services. We can customize to meet the specific needs of our customers for different projects.

Cutting Service: Stainless steel can be custom cut to obtain the desired shape and size according to the customer’s needs. For example, flame cutting, plasma cutting, laser cutting, etc., can cut stainless steel into desired plates, blocks, shaped pieces, etc.
Bending & Forming: Stainless steel is bent and formed by applying stress and appropriate processes to obtain the desired shape.
Welding Services: Stainless steel can be subjected to various types of welding services, including manual arc welding, gas-shielded welding, laser welding, etc.
Hole Turning And Machining: Stainless steel is turned and holes are machined through the use of machining equipment. These processes produce smooth surfaces, precise holes and threads to meet specific assembly requirements.
Surface Treatments: Surface treatments can be applied to improve the corrosion resistance and aesthetics of the stainless steel. This includes methods such as painting, hot dip galvanizing, and electroplating to add a protective layer and provide corrosion resistance.

Ask Deep Processing Services

Gnee stainless steel can provide testing and the following third-party inspection services. These third-party testing services provide independent and objective verification of stainless steel’s compliance with relevant standards and regulations.

Mechanical Property Testing: Used to determine whether the strength, toughness, ductility and other mechanical properties of stainless steel meet the specified requirements.
Chemical Composition Analysis: Quantitative determination of elements on stainless steel samples through spectral analysis, atomic absorption spectroscopy, inductive coupling and other technologies.
Corrosion Performance Test: Common corrosion performance test methods include salt spray corrosion test, acid-base corrosion test and electrochemical corrosion test.
Tensile Strength Test: Through the tensile test, the parameters such as yield strength, tensile strength and breaking strength of stainless steel during the tensile process are measured.
Non-Destructive Testing: Non-destructive testing is used to evaluate hidden defects, cracks and looseness in stainless steel materials. Common methods include ultrasonic testing, magnetic particle testing, eddy current testing, and radiographic testing.
Pressure Test: By exposing stainless steel products to a specific pressure, it is tested whether there are problems such as leakage or deformation to ensure that its pressure resistance meets the requirements.
Surface Quality Test: Used to evaluate the surface flatness, smoothness and oxide layer of stainless steel products.
Welding Performance Test: Check the appearance, mechanical properties and metallographic microstructure of the weld to ensure that the quality of the stainless steel welded joint meets the requirements.
Metallographic Inspection: Through metallographic inspection, the structure, grain size, non-metallic inclusions, etc. of stainless steel are checked to evaluate its quality and performance.

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