PRODUCT CENTER
We mostly customize products according to client’s request. Please contact us for customization or visit our Online Shop.

Special Note of Material:

GB-40CrNiMoA

We are specialized in making customized 40CrNiMoA crankshafts and connecting rods. 40CrNiMoA round bar has high strength and hardness, good weld ability, toughness, machinability and so on.

Equal material of 40CrNiMoA

DIN

AISI

JIS

BS

Russia

34CRNIMO6

4340

SNCM439(SNCM8)

871M40

40NiCrMo7


When someone needs to purchase this kind of material, supplier will convert to local name.
DO pay attention, they are similar but not exactly the same. Chemical composition comparison as follows:

Grade
C
Si
Mn
Cr
Ni
Mo
40CrNiMoA
0.37~0.44
0.17~0.37
0.50~0.80
0.60~0.90
1.25~1.65
0.15~0.25
4340
0.38~0.43
0.15~0.35
0.60~0.80
0.70~0.90
1.65~2.00
0.20~0.30
SNCM439
0.36~0.43
0.15~0.35
0.60~0.90
0.60~1.00
1.60~2.00
0.15~0.30