Method for producing a steel strip composed of a dual-phase stee

Details Method for producing a steel strip composed of a dual-phase stee Method for producing a steel strip composed of a dual-phase stee

1980-05-12

1982-04-20

Skiff, Peter K.

Metal treatment

Compositions

Heat treating

148 124, 148 36, 148156, C21D 802

Patent

active

043257518

ABSTRACT:
A steel strip displaying high strength and formability properties is fabricated by coiling a steel strip which has been previously processed through a hot-strip mill from an initial steel having a very low amount of alloying compounds and having a temperature of between 750.degree. and 900.degree. C., the coiled steel strip being maintained at a temperature of between 800.degree. and 650.degree. C. for a period of at least one minute, and thereafter cooled to a temperature of below 450.degree. C., the cooling being accomplished at a rate exceeding 10.degree. C./second.

REFERENCES:
patent: 4008103 (1977-02-01), Miyoshi et al.
patent: 4072543 (1978-02-01), Coldren et al.
patent: 4129461 (1978-12-01), Rashid
patent: 4159218 (1979-06-01), Chatfield et al.
patent: 4184898 (1980-01-01), Ouchi et al.
patent: 4196025 (1980-04-01), Davies

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