... or not, cold and delivery status by heat treatment Spring steel wire Chemical composition1.Material Grade:60Si2Mn,Y15PB,65Mn2.Size:dia:12 ... ,then I will send you our lowest and competitive priceSpring steel Chemical ingredients:C: carbon 0.10-0.17Si Si: 0 ... , 20CrMnTi, 9CrSi, 9Mn2 5. hot rolled high speed alloy tool steel Size: 12mm-300mm Material: W18Cr4V, M42, W6, W9, 3Cr2W8V, CrWMn ...