1) Delivery condition: Hor-rolled,black surface

Hardness: ≤220HB.

2) Chemical composition:C=0.41~0.45, Cr=0.99-1.1 ,Mo=0.16-0.20, Si=0.17~0.35, Mn=0.60~0.75; P: ≤0.018   S:≤ 0.030,  NI: ≤0.012  Cu:≤ 0.07

3) Specification:DIA.12~450mm;Length:3000~8000mm

4) Payment :prepay 30% deposit,T/T or L/C at sigth.