Hot rolled steel product and method for producing same

Details Hot rolled steel product and method for producing same Hot rolled steel product and method for producing same

1981-08-21

1983-08-23

Skiff, Peter K.

Metal treatment

Compositions

Heat treating

75123E, 75123J, 148 36, C21D 802

Patent

active

044002238

ABSTRACT:
A hot rolled, high strength, low alloy steel strip is prepared from a steel having a controlled composition employing small quantities of Cb and V, and the steel is renitrogenized. Deliberate Si addition is avoided. The carbon and manganese contents are controlled, and a sulfur controlling agent is employed. Hot rolling practice is controlled. The hot rolled steel strip has a microstructure consisting essentially of a ferrite matrix with scattered pearlite, a relatively fine ferrite grain size and excellent yield strength and ductility.

REFERENCES:
patent: 3661537 (1972-05-01), Aronson et al.
patent: 3666570 (1972-05-01), Korchynsky et al.
patent: 3673007 (1972-06-01), Miyano et al.
patent: 3926686 (1975-12-01), Creswick et al.
patent: 3982969 (1976-09-01), Koros et al.
patent: 3997372 (1976-12-01), Matas et al.
patent: 4033789 (1977-07-01), Hamburg et al.
patent: 4142922 (1979-03-01), Abraham et al.
Bosley et al., Steel Ladle Practices for Desulfurization and Sulfide Morphology Control at U.S. Steel, pp. 28-37.

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