4140/1.7225/42CrMo alloy steel forging: 1.Diameter :20-400mm, Length: 2000mm-5800mm; 2.Annealed to HB=229 3.Black surface

4140/1.7225/42CrMo alloy steel forging: 

1.Grade

Alloy steel bar AISI 4140 / GB 42CrMo / DIN 1.7225/42CrMo4 / JIS SCM440

2.Round bar Size:

Diameter :20-600mm * Lenght: 2000mm-5800mm

3.Factory state:

Hot rolled,Pre-hardened, Annealed HB=229

4.Chemical Composition (%)(For reference Only)

C	Si	Mn	P≤	S≤	Cr	Mo	Ni
0.38-0.45	0.30	0.60-0.90	0.025	0.025	0.90-1.20	0.15-0.30	≤0.25

5.Application:

Mainly used for making various kinds of machinery,automobile,mining spare part.

4140/1.7225/42CrMo alloy forged steel bar