Japan's Hitachi spring steel S65C-CSP steel, spring steel wire of soft material, S65C-CSP spring steel, carbon spring steel, alloy spring steel

[Chemical composition]: as the spring steel alloy, carbon composition, general wC = 0.5% ~ 0.7%, to meet the high elasticity, high strength performance requirements. Main alloying elements are added Si, Mn, Cr, is to strengthen the role of ferrite, increase hardenability and tempering resistance of. But adding too much will cause the Si steel heating surface is easy to decarburization, Mn tends to add too much grain growth. Adding a small amount of V and Mo can be refined grains, and thus further enhance the strength and improved toughness. In addition, they also further improve the hardenability and tempering resistance of the role.