Stainless steel castings

Details Stainless steel castings Stainless steel castings

1979-10-31

1982-02-09

Skiff, Peter K.

Metal treatment

Compositions

Heat treating

75125, 75128R, 148 38, C22C 3842

Patent

active

043148638

ABSTRACT:
Stainless steel castings having an as-cast hardness of Rockwell B82 to 98, good ductility and high notch toughness, and consisting by weight of 13-19% of Cr, 2.0-3.6% of Ni and 2.0-3.5% of Cu with the sum of Ni plus Cu of at least 5.0%, 0.20-1.4% of Mn, 0.5-1.0% of Si, 0.035% max. of P, 0.035% max. of S, less than 0.10% of Mo, less than 0.10% of Cb, less than 0.10% of Al, 0.20-80% of C when the N is 0.05% max. and 0.10-60% C when the N is 0.05-0.10%, and balance essentially of Fe and any conventional impurities.

REFERENCES:
patent: 2784083 (1957-03-01), Linnert et al.
patent: 2784125 (1957-03-01), Clark, Jr.
patent: 2797993 (1957-07-01), Tanczyn
patent: 2850380 (1958-09-01), Clark, Jr.
patent: 3152934 (1964-10-01), Lula et al.
patent: 3216868 (1965-11-01), Nachtman
patent: 3352666 (1967-11-01), Foster et al.

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