Cast, heat-resistant austenitic stainless steels having...

Details Cast, heat-resistant austenitic stainless steels having... Cast, heat-resistant austenitic stainless steels having...

2011-08-23

2011-08-23

Yee, Deborah (Department: 1733)

Alloys or metallic compositions

Ferrous

Nine percent or more chromium containing

C420S586100, C148S327000, C148S419000

Reexamination Certificate

active

08003045

ABSTRACT:
A cast, austenitic steel composed essentially of, expressed in weight percent of the total composition, about 0.4 to about 0.7 C, about 20 to about 30 Cr, about 20 to about 30 Ni, about 0.5 to about 1 Mn, about 0.6 to about 2 Si, about 0.05 to about 1 Nb, about 0.05 to about 1 W, about 0.05 to about 1.0 Mo, balance Fe, the steel being essentially free of Ti and Co, the steel characterized by at least one microstructural component selected from the group consisting of MC, M23C6, and M(C, N).

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