Alloy steel /Round bar(SAE 4340/40CrNiMo)

1)Delivery condition:Hor-rolled,black surface,and Annealed,Hardness: ≤220HB

2)Chemical composition:C=0.39~0.44,Si=0.17~0.35,Mn=0.65~0.75,Cr=0.74~0.80,

Mo=0.16~0.20, Ni=1.25~1.65,P≤0.018,S=0.03,Cu=0.2

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

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