High Quality 302 Cold Rolled Stainless Steel Sheet ASTM A240 4mm 6mm Stainless

302 cold rolled stainless steel sheet is a high-strength 300-series industrial stainless steel strictly manufactured in accordance with ASTM A240 standard. Different from soft ductile 304, crack-resistant 301L and elastic-focused 301 steel, 302 stainless steel features higher carbon and chromium-nickel ratio, delivering outstanding tensile strength, hardness and wear resistance in annealed and cold-worked status. Featured 4mm and 6mm medium-thick cold rolled specifications perfectly balance structural rigidity and processing flexibility. With precise cold rolling tolerance, flat surface and stable metallographic structure, it is the preferred industrial steel plate for manufacturing high-strength mechanical parts and wear-resistant equipment components.

4mm and 6mm mainstream medium-thick specifications are in stable stock. All products fully comply with ASTM A240 standard, supporting third-party inspection and custom processing.

Raw material component calibration → high-precision cold rolling → stress relief treatment → surface fine finishing → flatness correction → fixed-size cutting → ASTM standard quality inspection → protective packaging

302 stainless steel is optimized for strength and wear resistance. Its higher carbon content provides stronger matrix hardness than 304 and 316L, showing excellent work-hardening effect after cold processing. The more the material is cold-worked, the higher its strength and surface hardness, making it extremely suitable for parts that require long-term friction and load-bearing. Different from 301’s elastic focus and 301L’s anti-cracking focus, 302 prioritizes overall structural rigidity and surface wear resistance. The 4mm and 6mm cold rolled medium-thick plates avoid the insufficient strength of thin sheets and the difficult processing of thick hot-rolled plates, achieving perfect balance of rigidity, wear resistance and processability.

• Mechanical equipment friction plates, wear-resistant gaskets and fixed support parts
• Automation equipment structural panels and load-bearing accessories
• Industrial tooling plates and fixture base plates

• Industrial equipment outer shell and protective structural plates
• Transportation machinery auxiliary components
• General industrial high-strength stamping and bending parts

• High-strength hardware structural parts and stamped components
• Factory equipment anti-wear protective panels
• Engineering standardized metal supporting parts

• Work Hardening Feature: 302 steel gains higher hardness after cold processing, suitable for parts requiring surface wear resistance.
• Surface Maintenance: 2B cold rolled surface is smooth and dense, resistant to daily oxidation, easy to clean and maintain.
• Processing Suggestion: Moderate toughness, suitable for stamping, bending and cutting; ideal for mass industrial production.
• Service Life: Excellent structural stability, not easy to deform or wear under long-term mechanical friction.

• Industry-Exclusive High Strength: Higher hardness & wear resistance than 304 steel, perfect for wear-resistant mechanical parts
• Powerful Work Hardening Property: Strength increases significantly after cold working, improving component durability
• ASTM A240 Standard Certified: International standard compliance, qualified for global engineering procurement
• Practical 4/6mm Medium Thickness: Balances rigidity and processability, wide applicability for industrial fabrication
• Premium Cold Rolled Quality: Precise tolerance, high flatness, no burrs, stable batch consistency
• Professional Industrial Grade: Customized for mechanical wear-resistant & structural scenarios

For ASTM test reports, custom processing solutions and wholesale prices, please contact us.