Method of producing non-ageing cold rolled steel strip with exce

Details Method of producing non-ageing cold rolled steel strip with exce Method of producing non-ageing cold rolled steel strip with exce

1979-10-17

1982-02-16

Skiff, Peter K.

Metal treatment

Compositions

Heat treating

148134, C21D 804

Patent

active

043157831

ABSTRACT:
A method of producing a non-ageing cold rolled steel strip having excellent deep-drawability, with a r value of 1.5 or higher and ageing index of not higher than 3 kg/mm.sup.2 from an Al-killed steel with a lowered carbon content between 0.001 and 0.0035% and with no special additives such as titanium by a relatively low temperature coiling in the hot rolling, and a short-time continuous annealing without over-ageing, thus over-coming the disadvantages caused by a high temperature coiling and by additional over-ageing.

REFERENCES:
patent: 3256119 (1966-06-01), Logan et al.
patent: 3765874 (1973-10-01), Elias et al.
patent: 3821031 (1974-06-01), Kubotera et al.
patent: 3879232 (1975-04-01), Gondo et al.
patent: 3959029 (1976-05-01), Madsudo et al.

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