steel grade:

1Cr11Co3W3NiMoVNbNB 

1Cr11Co3W3NiMoVNbNB  chemical composition

C   0.08-0.13
Si  0.10
Mn 0.35-0.65
P 0.015 
S  0.010 
Ni 0.30-0.70
Cr  l0.00 ~12.00
Mo  0.10-0.40
Co 2.50 ~3.50
W  2.40-3.00
V0.15 ~0.25
Nb 0.05 ~0.12
N 0.010 ~0.035
Nb  0.05-0.12
B  0.01-0.04
bal:Fe

 

1Cr11Co3W3NiMoVNbNB is a new type of martensitic heat-resistant steel. It is added with an average content of 3.0% Co and W on the basis of the Cr12 series steel to further improve the high-temperature durability and stability of the steel. It can be used in the high-temperature part of nuclear power steam turbines. In sets, such as cylinders, valves, etc., and in automobile engines

 

1Cr11Co3W3NiMoVNbNB