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Vacuum bake out of 316 SS to prevent hydrogen outgassing

Vacuum bake out of 316 SS to prevent hydrogen outgassing

Vacuum bake out of 316 SS to prevent hydrogen outgassing

(OP)
Hi all, I am wondering if anyone has any information on vacuum bake out of 316 SS to prevent hydrogen outgassing? Temperature, duration, and vacuum pressure? I have read about the chambers being baked at around 400°C for 24 hours, but nothing about smaller parts.

Thanks in advance.

RE: Vacuum bake out of 316 SS to prevent hydrogen outgassing

As far as I know this only applies to surface adsorption, the material it self will not hold any hydrogen.
The same practice would work, but with smaller parts less time may be suitable.

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Plymouth Tube

RE: Vacuum bake out of 316 SS to prevent hydrogen outgassing

(OP)
Thanks Ed. Follow up question. Everything I have read seems to correlate the thickness of the walls to the bake temperature/time. Anyone know the reasoning for this if the vacuum bake out process only applies to surface adsorption?

Thanks.

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