Metal treatment – Compositions – Heat treating
Patent
1974-02-04
1976-05-25
Stallard, W.
Metal treatment
Compositions
Heat treating
148 121, C21D 948
Patent
active
039590291
ABSTRACT:
In a two stage cold reducing process, Al-stabilized steel is subjected to a decarburizing treatment as intermediate annealing between the first and second cold reducing, to impart unexpectedly high drawability to Al-stabilized steel, the drawability being more than 2.00 r (Lankford value). Such Lankford value shows that the steel is capable of sustaining any severe press forming.
REFERENCES:
patent: 3239390 (1966-03-01), Matsukura et al.
patent: 3244565 (1966-04-01), Mayer et al.
patent: 3248270 (1966-04-01), Laidman et al.
patent: 3281286 (1966-10-01), Shimizu et al.
patent: 3336166 (1967-08-01), Shimizu et al.
patent: 3404047 (1968-10-01), Goodman et al.
Matsudo Kazuo
Shimomura Takayoshi
Kojima Moonray
Nippon Kokan Kabushiki Kaisha
Stallard W.
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