Cryogenically super-hardened high-chromium white cast iron and m

Details Cryogenically super-hardened high-chromium white cast iron and m Cryogenically super-hardened high-chromium white cast iron and m

1992-02-06

1993-02-02

Yee, Deborah

Metal treatment

Stock

Ferrous

148545, 148612, C21D 504, C22C 3836

Patent

active

051835185

ABSTRACT:
A highly abrasion-resistant, high-chromium white cast iron alloy containing the following elemental analysis in percent by weight: 2.4-3.8% carbon, 0.4 to 2.0% manganese, 0.2 to 1.9% silicon, 0.0 to 3.0% copper, 1.5 to 4.5% nickel, 12.0 to 29.0% chromium, and the remainder iron; and super-hardened by placement in a cooling medium at a temperature of at least -55.degree. C. for a time sufficient to cause the iron alloy to have a hardness of at least about 700 HB.

REFERENCES:
patent: 3410682 (1968-11-01), Avery et al.
patent: 3690958 (1972-09-01), Thompson
patent: 3784416 (1974-01-01), Davies
patent: 4382828 (1983-05-01), Henych
patent: 4395284 (1983-07-01), Dawson

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