HAYNES® 242® alloy have very good resistance to nitriding environments. Tests were performed in flowing ammonia at 1800°F (980°C) for 168 hours. Nitrogen absorption was determined by chemical analysis before and after exposure and knowledge of the specimen area.
| Alloy |
Nitrogen Absorption (mg/cm2) |
| 214®
|
0.3
|
| 242®
|
0.7
|
| 600
|
0.9
|
| 230®
|
1.4
|
|
X
|
3.2
|
|
800H
|
4.0
|
| 316 SS
|
6.0
|
| 304 SS
|
7.3
|
| 310 SS
|
7.7
|