Austenitic
Duplex Steel
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Hot Sale 302/3021A Stainless Steel Spring Wire Bright/Matte Surface with ISO certificate

302/304 stainless steel wire is the most widely used stainless steel wire due to its high corrosion resistance and good tensile strength. It is a general-purpose stainless steel alloy, usually consisting of 18% chromium and 8% nickel. For spring applications, it is typically offered in the cold drawn condition. 302/304 springs have good strength at moderate temperatures up to 500°F. 302/304 is non-magnetic in the annealed condition, but the material in the spring condition is slightly magnetic due to some martensitic transformation during the drawing operation. The higher the cold reduction, the higher the degree of magnetism.

Application for 304 stainless steel wire:

302: High-Quality Springs

3021A: Tight Wire

MTSCO is a professional supplier of steel wire with complete production technology and rich management experience. We produce spring wire, electrolytic polished wire, fine wire, wire for netting, hose wire, welding wire, cold heading, locking wire, and other products. Our main materials are stainless steel and alloy steel, and the raw materials we use are from the biggest and most well-known steel mills in China, we can supply wire in sizes ranging from 0.15 mm to 16 mm in diameter. Our factory is well-equipped and our products conform to ASTM, DIN, GTB, JIS, JSG, and other international standards. We have experienced foreign trade staff with high-quality service and can produce high-quality products according to customers' requirements.

Quality Control

Before shipment: Mechanical properties test, Surface/Dimension inspection, or according to customers’ requirement

Finished Product Inspection: eddy current surface flaw detection, 30 times magnifying glass surface inspection, salt spray test, tensile test, winding test, torsion number test