Alloy steel /Round bar(SAE 4140 /42CrMo )

1) Delivery condition: Hot-rolled, black surface,Hardness: ≤220HB

2) Chemical composition: C=0.41~0.45,Si=0.17~0.35,Mn=0.60~0.75,

P≤0.018,S≤0.030,Cr=0.99~1.1,Mo=0.16~0.20,Ni=≤0.012,Cu≤0.07.

3)Specification:Thickness:30/35/40..350mm,Length:2500~4000mm,or as customers’ requirement

4) Payment terms: 30% deposit, balance against L/C at sight or T/T.