Low carbon high yield and tensile strength steel and method of m

Details Low carbon high yield and tensile strength steel and method of m Low carbon high yield and tensile strength steel and method of m

1977-02-07

1978-09-19

Dean, R.

Metal treatment

Compositions

Heat treating

75123R, 75123B, 75123J, 148 36, C21D 714

Patent

active

041151550

ABSTRACT:
A process for producing a killed, low carbon, columbium, boron alloy steel characterized by high strength and an unbanded ferrous microstructure in the as-rolled condition. The steel is hot rolled to form an intermediate section before the steel temperature reaches 1650.degree. F. Below 1650.degree. F, the steel is further reduced with a total minimum reduction of 50% in one embodiment, and 35% in a second embodiment, and in the Ar.sub.3 -Ar.sub.1 temperature range, reduction is a plurality of reduction passes under conditions to permit substantial recrystallization of deformed grains after each pass, with a finishing temperature between 1100.degree.-1150.degree. F in one embodiment, and a finishing temperature between 1350.degree. F and Ar.sub.1 in a second embodiment.

REFERENCES:
patent: 2280283 (1942-04-01), Crafts
patent: 2542220 (1951-02-01), Urban et al.
patent: 2772154 (1956-11-01), Morgan et al.
patent: 3010822 (1961-11-01), Attenberger et al.
patent: 3102831 (1963-09-01), Tisdale
patent: 3544393 (1970-12-01), Zanetti
patent: 3592633 (1971-07-01), Osuka et al.
patent: 3619303 (1972-11-01), Semel
patent: 3645801 (1972-02-01), Melloy
patent: 3676108 (1972-07-01), McGarrity
patent: 3725049 (1973-04-01), Satoh et al.
patent: 3918999 (1975-11-01), Sekine et al.
patent: 3925111 (1975-12-01), Takechi et al.
patent: 4043807 (1977-08-01), Kirman

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