Process of making high tension cold-reduced Al-killed steel exce

Details Process of making high tension cold-reduced Al-killed steel exce Process of making high tension cold-reduced Al-killed steel exce

1977-03-10

1978-09-12

Stallard, W.

Metal treatment

Compositions

Heat treating

148 124, C21D 702, C21D 713, C21D 714

Patent

active

041135237

ABSTRACT:
A high tension Al-killed steel of which the yield point is more increased by the ensuing heat treatment after press-forming than that of the properties in which the tensile strength is above 40 to 80 Kg/mm.sup.2, is made by the following main steps:

REFERENCES:
patent: 3798076 (1974-03-01), Shimizu et al.
patent: 3839095 (1974-10-01), Kubotera et al.
patent: 3865645 (1975-02-01), Takahashi et al.
patent: 3904446 (1975-09-01), Uchida et al.
patent: 3936324 (1976-02-01), Uchida et al.

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