High strength stainless steel having excellent intergranular cor

Details High strength stainless steel having excellent intergranular cor High strength stainless steel having excellent intergranular cor

1982-07-08

1983-09-20

Rutledge, L. Dewayne

Metal treatment

Compositions

Heat treating

75128N, 75128A, C22C 3840

Patent

active

044053908

ABSTRACT:
A high strength stainless steel having the composition in % by weight of C: not more than 0.04%, N: 0.04-0.20%, Si: not more than 1.0%, Mn: not more than 2.0%, Ni: 6.0-10.0%, Cr: 16.0-20.0% and balance Fe and impurities inevitably incidental from the steelmaking process, and that the composition is adjusted to have an A.gamma. value of 19-21, where: A.gamma.=(%Ni)+0.60 (%Cr)+0.7 (%Mn)+13 [(%C)+(%N)], is disclosed. The steel exhibit excellent intergranular corrosion cracking resistance and workability as well as high strength.

REFERENCES:
patent: 1990590 (1935-02-01), Franks
patent: 2602737 (1952-07-01), Binder et al.

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