HASTELLOY® X alloy Site
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Carburization Resistance |
| Tests were performed in a
carburizing environment with an
inlet gas mixture (volume %) of
5.0% H2, 5.0% CO, 5.0% CH4 and
the balance argon. The calculated
oxygen potential and carbon
activity at 1800°F (980°C) were 9 x 10-22 atm. and 1.0, respectively.
The results are presented in
terms of the mass of carbon
pickup per unit area, which was
obtained from the equation
M = C (W/A) where M = the mass of carbon pickup per unit area
(mg/cm2), C = difference in
carbon (weight fraction) before
and after exposure, W = weight of
the unexposed specimen (mg)
and A = surface area of the
specimen exposed to the test
environment (cm2). |
Comparative Carburization Resistance at 1800°F (980°C) for 55 Hours |
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