... Our Products includes Cold Working Steel,Hot Working Steel,Alloy Tool Steel,Carbon Steel,Bearing Steel,Spring Steel ---------------------------------------------------------------------------------------------- P20+Ni/1.2738/718 ... AISI 1045, SAE 1045, S45C, C45, CK45 AISI 1050, SAE1050, S50C, C50, CK50 ASTM A36, A283, ...