High strength cold rolled, weldable steel strip

Details High strength cold rolled, weldable steel strip High strength cold rolled, weldable steel strip

1979-07-10

1983-08-16

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75123M, F16H 2910

Patent

active

043989500

ABSTRACT:
A cold rolled steel strip is provided with a relatively high yield strength together with good resistance spot weldability, while avoiding rolling problems during its manufacture. This is accomplished by adding, to plain carbon steel, phosphorus in an amount greater than 0.04 wt. % up to 0.15 wt. % and 0.04-0.14 wt. % titanium.

REFERENCES:
patent: 2916375 (1959-12-01), Middleham et al.
patent: 3110798 (1963-11-01), Keay
patent: 3857740 (1974-12-01), Gondo et al.
patent: 3899368 (1975-08-01), Waid et al.
patent: 4029934 (1977-06-01), Clark et al.
patent: 4094670 (1978-06-01), Bruno et al.
patent: 4141724 (1979-02-01), Brickner et al.
patent: 4141761 (1979-02-01), Abraham et al.
Fine et al., "Spot Weldability of High Strength, Cold-Rolled Steel", Feb. 26, 1979, Society of Automotive Engineers, Inc., Warrendale, Pa.

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