High performance high strength low alloy wrought steel

Details High performance high strength low alloy wrought steel High performance high strength low alloy wrought steel

1990-06-05

1993-01-19

Roy, Upendra

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

148611, 420 89, 420 91, 420111, C22C 3800

Patent

active

051804506

ABSTRACT:
A high strength, low alloy, low to medium carbon structural steel is provided of the Fe/Cr/C type, said steel characterized by the presence of a small but effective amount of each of Cu and Ni sufficient to enhance the mechanical stability of retained austenite formed following quenching of said steel from its austentizing temperature. Preferably the steel also includes small but effective amounts a Al, Ti and Nb suficient to provide a fine grained microstructure.

REFERENCES:
patent: 336887 (1968-02-01), Enis et al.
patent: 3110798 (1963-11-01), Keay
patent: 3787201 (1974-01-01), Matsukura et al.
patent: 4043807 (1977-08-01), Kirman
patent: 4807990 (1974-04-01), Gohda et al.
patent: 4855106 (1989-08-01), Katsumata et al.

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