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UNS S3108


310/310H is an austenitic stainless steel often used in sulfur bearing gas atmospheres, heat exchanger and recuperator tubing and molten salt applications. This high chromium and medium nickel grade has an excellent resistance to oxidation under temperatures up to 2000°F.

Forms in Stock


Welded Pipe 8″-12″ 10s, 40s, 80s ASTM/ASME 312
Smls Pipe ½”-8″ 10s, 40s, 80s ASTM/ASME 312
B/W Fittings ½”-12″ 10s, 40s, 80s ASTM/ASME 403
Flanges ½”-12″ 150#, 300# ASTM/ASME 182

Limiting Chemical Composition, %

Ni…19.0-22.0 Si…0.75 max.
Cr…24.0-26.0 S…..0.03 max.
C…..0.08 max. P…..0.045 max.
Mo…0.75 max.
Mn…2.0 max.
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