Austenitic Fe-Ni-Cr alloy

Details Austenitic Fe-Ni-Cr alloy Austenitic Fe-Ni-Cr alloy

2007-10-03

2010-06-08

Yee, Deborah (Department: 1793)

Alloys or metallic compositions

Ferrous

Nine percent or more chromium containing

C420S043000, C420S052000, C420S053000, C420S054000, C420S055000, C420S584100, C420S586100, C420S452000, C420S453000

Reexamination Certificate

active

07731895

ABSTRACT:
An austenitic stainless steel improved in creep strength, creep ductility, weldability and also hot workability. The steel, consisting of, by mass %, C: 0.05-0.15%, Si: not more than 2%, Mn: 0.1-3%, P: 0.05-0.30%, S: not more than 0.03%, Cr: 15-28%, Ni: 8-55%, Cu: 0-3.0%, Ti: 0.05-0.6%, REM: 0.001-0.5%, sol. Al: 0.001-0.1%, N: not more than 0.03%, and the balance being Fe and incidental impurities. This steel may contain one or more of Mo, W, B, Nb, V, Co, Zr, Hf, Ta, Mg and Ca. It is preferable that REM is Nd.

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