Alloy S
information
Equivalent designations
UNS N06635
Chemical composition
|
% |
Ni |
Cr |
Mo |
Fe |
Co |
W |
C |
Mn |
Si |
P |
S |
Al |
Cu |
La |
B |
|
min |
balance |
14.5 |
14.0 |
|
|
|
|
0.30 |
0.20 |
|
|
0.10 |
|
0.01 |
|
|
max |
17.0 |
16.5 |
3.0 |
2.0 |
1.00 |
0.020 |
1.00 |
0.75 |
0.020 |
0.015 |
0.50 |
0.35 |
0.10 |
0.015 |
Physical properties
|
Density |
8.75 g/cm3 |
|
Melting range |
1335-1380℃ |
Features: Hastelloy S has excellent thermal stability, low thermal expansion and excellent oxidation resistance at 1093℃. It has good high temperature and thermal fatigue strength. It retains its strength and ductility after aging at temperatures of 427 to 871℃. Hastelloy S is particularly suitable for cyclical heating conditions where components must be capable of retaining their strength, ductility and metallurgical integrity after long time exposure.
Applications: Industrial furnaces, and gas turbine engine seal rings.
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