phone-icon800.354.0806
765.456.6012
The Home of HASTELLOY® and
HAYNES® Alloys

Nitriding Resistance

HAYNES® 230® alloy is one of the most nitriding resistant materials commercially available. Tests were performed in flowing ammonia at 1200°F (650°C) and 1800°F (980°C) for 168 hours. Nitrogen absorption was determined by chemical analysis of samples before and after exposure and knowledge of the exposed specimen area.

Alloy Nitrogen Absorption (mg/cm2)
1800°F (982°C) 2000°F (1093°C)
230® 0.7 1.4
600 0.8 0.9
625 0.8 2.5
X 1.7 3.2
RA330® 3.9 -
800H 4.3 4.0
316 SS 6.9 6.0
310 SS 7.4 7.7
304 SS 9.7 7.3
Print Page
Back to top