Heat-treatable steel

Details Heat-treatable steel Heat-treatable steel

1976-08-17

1977-11-29

Steiner, Arthur J.

Metal treatment

Compositions

Heat treating

75126F, 148143, C22C 3824, C22C 3826

Patent

active

040604314

ABSTRACT:
Parts made of a heat-treated alloy steel having a minimum tensile strength of 700 N/mm.sup.2 and a notch toughness of at least 55 joules, wherein the alloy steel is a Mn/Cr/Nb alloy steel of lower alloy content than has hitherto been used to provide the desired strength/toughness properties.

REFERENCES:
patent: 3432368 (1969-03-01), Nakamura
patent: 3574602 (1971-04-01), Gondo et al.
patent: 3726724 (1973-04-01), Davies et al.
patent: 3806378 (1974-04-01), Bramfitt
patent: 3900347 (1975-08-01), Lorenzotti et al.
Metals Handbook, ASM, 1961, pp. 108-111.

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