Heat-resistant austenitic stainless steel

Details Heat-resistant austenitic stainless steel Heat-resistant austenitic stainless steel

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.

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