Metal treatment – Compositions – Heat treating
Patent
1974-04-09
1976-12-28
Stallard, W.
Metal treatment
Compositions
Heat treating
75124, 75126R, 75126C, C21D 948
Patent
active
040000176
ABSTRACT:
A method for manufacturing steel sheet having good cold formability comprising hot rolling steel which contains less than 0.10% C (less than 0.15% annealing for decarburization), less than 0.15% Si, less than 0.25% Mn, 0.4% to 1.5% Cr, less than 0.8% Mo, less than 0.5% Al and unavoidable impurities, cold rolling at a reduction rate of more than 30% and annealing for recrystallization at a temperature above 700.degree. C.
REFERENCES:
patent: 3348981 (1967-10-01), Goda et al.
patent: 3420718 (1969-01-01), Fukuda et al.
Kinoshita Kazuhisa
Yamaguchi Tetsuo
Nippon Kokan Kabushiki Kaisha
Stallard W.
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