Wear and pitting resistant cast iron

Details Wear and pitting resistant cast iron Wear and pitting resistant cast iron

1975-03-18

1978-11-07

Dean, R.

Metal treatment

Compositions

Heat treating

75128C, 75128D, 75128W, 148 35, 148141, C21D 500

Patent

active

041244133

ABSTRACT:
Wear and pitting resistant cast iron consisting essentially of 2.8 - 3.3% carbon, 1.5 - 2.1% silicon, 1.0 - 1.5% chromium, 0.6 - 0.8% molybdenum, 0.2 - 0.5% nickel, balance substantially all iron. The free cementite in the iron in its as-cast state amounts to 20 - 40% by volume and the casting is then held at 860.degree. - 950.degree. C for 1 - 10 hours, followed by quenching, for hardening purposes.

REFERENCES:
patent: 1391215 (1921-09-01), Speer
patent: 1627626 (1927-05-01), Walters
patent: 1910034 (1933-05-01), Mitchell et al.
patent: 1973263 (1934-09-01), Mitchell et al.
patent: 2077117 (1937-04-01), Lauenstein
patent: 2171082 (1939-08-01), Ervin
patent: 2324322 (1943-07-01), Reese et al.
patent: 2338171 (1944-01-01), Feduska
patent: 2455183 (1948-11-01), Lobdell
patent: 3370934 (1968-02-01), Smith
patent: 3549431 (1970-12-01), DE Castelet
patent: 3627515 (1971-12-01), Kueny
patent: 3977867 (1976-08-01), Cochran et al.
Metals Handbook, 1948 Ed., pp. 512, 513 & 519.

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