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Ted Mooney, P.E. RET
The authoritative public forum
for Metal Finishing 1989-2025
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Hydrogen Embrittlement with stainless steel
I would like to know if there will be any compatibility issue with Hydrogen Gas embrittlement when using 316 and 17-4 stainless steel? The reason for two material is because one portion is 316SS and the other is 17-4SS. Both these materials will be welded together. So my real concern with embrittlement is in the welded area. Please advise if there should be any concern. Thank you.
Dan BadilloBarksdale - Los Angeles, California, USA
2003
Type 316 stainless steel alloy is not prone to hydrogen embrittlement. Precipitation hardening grades like 17-4PH are susceptible to hydrogen embrittlement, especially in the hardened condition.
There are a number of standards and specifications that provide details on embrittlement relief,
e.g. ASTM B850-98, SAE USCAR 5, and ISO DIS 9588.
- Michigan
2003
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