Tel : 0086-0371-86172891
Tel : 0086-0371-86172891
The low expansion superalloy Incoloy 903 is made of Nb The Ni-Fe-Co base alloy strengthened by Ti and A1 elements is characterized by low thermal expansion coefficient, almost constant modulus of elasticity, high temperature, excellent thermal fatigue performance, and anti-embrittlement ability in high-pressure hydrogen environment. Therefore, the alloy is widely used in aero-engine compressor, turbine and parts of main rocket engine of space shuttle.
Incoloy 903 alloy chemical composition%:
|
C |
Co |
Ni |
Nb |
Al |
Ti |
Fe |
B |
|
≤0.05 |
14-17 |
36-39 |
2.7-3.5 |
0.7-1.15 |
1.35-1.75 |
Balance |
0.005-0.01 |
|
Mn |
Si |
P |
Sb |
Sn |
Bi |
Pb |
As |
|
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
|
0.20 |
0.015 |
0.015 |
0.025 |
0.0012 |
0.0001 |
0.001 |
0.0025 |
Incoloy 903 Physical properties :
Density 8.23 g/cm3
Melting point :1318-1393 ℃
