Process for producing cold rolled steel sheets having excellent

Metal treatment – Compositions – Heat treating

Patent

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148 123, 148 36, C21D 804

Patent

active

044432720

ABSTRACT:
Disclosed are processes for producing cold rolled steel sheets and strips having excellent press formability and ageing property by a continuous annealing method, in which specific heating cycles are adopted in combination with steel compositions with lowered phosphorus contents.

REFERENCES:
patent: 3805571 (1974-04-01), Toda et al.
patent: 3920487 (1975-11-01), Gondo et al.
patent: 4374682 (1983-02-01), Abe et al.

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