Alloys or metallic compositions – Ferrous – Nine percent or more chromium containing
Patent
1990-02-13
1991-03-12
Yee, Deborah
Alloys or metallic compositions
Ferrous
Nine percent or more chromium containing
420 50, 420 51, 420 52, C22C 3844
Patent
active
049991590
ABSTRACT:
A heat-resistant austenitic stainless steel is disclosed. This steel essentially consists of: not more than 0.06% C, 1-4% Si, 0.5-4% mn, not more than 0.035% P, not more than 0.005% S, 10-17% Ni, 14-20% Cr, 1-4% Mo, 0.01-0.5% Al, not more than 0.035% N, and balance essentially Fe, and may further contain small amounts of any of Cu, REM and B and the composition thereof is adjusted so that a limited amount of .delta.-ferrite appears in solidification. The steel has excellent hot salt corrosion resistance, weldability, salt errosion resistance of the weld and hot-workability.
REFERENCES:
patent: 2984563 (1961-05-01), Tanczyn
patent: 4011133 (1977-03-01), Bloom et al.
Hiramatsu Naoto
Shimizu Isami
Uematsu Yoshihiro
Nisshin Steel Company Ltd.
Yee Deborah
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