Stabilization heat treatment for SS321
Stabilization heat treatment for SS321
(OP)
Hi,
I am going to order a batch of SS321 piping (NPS14 sch.160 ; thk 35.71 mm) to use in estimated temperature of 500 C which is in sensitization susceptible range. Could anyone please suggest if I do require stabilization heat treatment after solution anneal ? If it is required (or recommended), please also help to suggest heat treatment conditions.
All comments are appreciated. Thank you.
I am going to order a batch of SS321 piping (NPS14 sch.160 ; thk 35.71 mm) to use in estimated temperature of 500 C which is in sensitization susceptible range. Could anyone please suggest if I do require stabilization heat treatment after solution anneal ? If it is required (or recommended), please also help to suggest heat treatment conditions.
All comments are appreciated. Thank you.





RE: Stabilization heat treatment for SS321
RE: Stabilization heat treatment for SS321
RE: Stabilization heat treatment for SS321
RE: Stabilization heat treatment for SS321
RE: Stabilization heat treatment for SS321
I am with XL here though, why not use a low C 316L, it won't sensitize. Look up the curves for material with 0.015% C.
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P.E. Metallurgy, Plymouth Tube
RE: Stabilization heat treatment for SS321
thank you both XL83NL and metengr. Could you please also recommend heat treatment profile, is it 900 C for 4 hours ?
RE: Stabilization heat treatment for SS321
Sensitized material is much more sensitive to SCC, there are many papers on this subject.
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P.E. Metallurgy, Plymouth Tube