Procedure for manufacture of steel band or strip

Details Procedure for manufacture of steel band or strip Procedure for manufacture of steel band or strip

1976-01-22

1977-09-06

Stallard, W.

Metal treatment

Compositions

Heat treating

148 124, C21D 714

Patent

active

040465985

ABSTRACT:
A process for manufacture of a steel band or steel strip, the steel comprising spheroidal carbide particles in a ferritic base, wherein a steel, the major part of which is a carbonaceous ferritic austenite conversion product which is, structurally, at least one of lamellar perlite, granular perlite, sorbite, bainite and martensite, and which is at a temperature below the steel A.sub.cl -temperature is heated to a temperature which is above the A.sub.cl -temperature and within the ferrite metastability range, the steel is then rolled at a temperature in the said metastable temperature range, and the steel is then cooled to below the A.sub.cl -temperature, the heating, rolling and cooling taking place in a time short enough to ensure that no substantial conversion to austenite occurs in the steel.

REFERENCES:
patent: 3660174 (1972-05-01), Jakenberg
patent: 3755004 (1973-08-01), Miller

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