Hot bar cooling

Details Hot bar cooling Hot bar cooling

1978-01-09

1979-03-27

Stallard, W.

Metal treatment

Compositions

Heat treating

148 124, 148 39, C21D 178, C21D 714

Patent

active

041464117

ABSTRACT:
A steel rod or bar comprises an outer surface layer of ferrite-pearlite type structure, an annulus immediately below said surface layer having an acicular micro-structure comprising martensite and/or bainite and a core of bainite or martensite or ferrite and carbides or a combination of two or more of these constituents.

REFERENCES:
patent: 2756169 (1956-07-01), Corson et al.
patent: 3111436 (1963-11-01), McGavin
patent: 3711338 (1973-01-01), Vitelli
patent: 3756870 (1973-09-01), Kasper et al.
patent: 4016009 (1977-04-01), Economopoulos et al.
patent: 4065329 (1977-12-01), Paulus et al.

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