Wrought alloy body and method

Details Wrought alloy body and method Wrought alloy body and method

1983-03-01

1985-10-01

Rutledge, L. Dewayne

Metal treatment

Compositions

Heat treating

148 12E, 75128W, 75128N, C22C 3844

Patent

active

045444200

ABSTRACT:
A wrought alloy body is formed of a CA-6NM type alloy comprising by weight from about 11.5% to about 14.0% chromium, about 4.2% to about 5.5% nickel, about 0.010% to about 0.040% carbon, about 0.75% to about 0.92% manganese, about 0.28% to about 0.62% silicon, about 0.65% to about 0.83% molybdenum; not more than about 0.035% phosphorus, 0.015% sulphur and 0.025% nitrogen; and the remainder iron and incidental residuals. The alloy exhibits yield strength above about 100,000 psi, tensile strength above about 120,000 psi at room temperature and impact strength above about 90 ft. lbs. at 0.degree. C. A method is provided for producing said wrought body by hot working.

REFERENCES:
patent: 3650709 (1972-03-01), Morsing
patent: 4058417 (1977-11-01), Bicicchi et al.
Nachschlagwerk Stahlschlussel, 10, Edition 1974.
ASTM specification A-743-83, (1983), pp. 4-7.
Fischer and Larson, CA6NM to Rc 22 Max, undated.
ASTM specification A370-77, (1977), pp. 293, 319-323.
J. D. Crawford and K. Rohrig, "A Foundry Success Story . . . CA-6NM".
James D. Crawford, "CA-6NM--an Update".
"CA-6NM: A Stainless Steel Casting Alloy".
Allegheny Ludlum "Stainless Steel": Allegheny Ludlum's types 414 and 431.
Leroy Finch, "CA-6NM, (Esco 33 G): A Casting Blade with Good Finishing Quality", Feb. 1972.
Alloy Casting Institute Data Sheet, Aug. 1973.
ASTM specifications A-743 and A-744, 1979.

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