Method for judging the fitness of a steel composition to a casti

Details Method for judging the fitness of a steel composition to a casti Method for judging the fitness of a steel composition to a casti

1975-02-21

1976-08-24

Stallard, W.

Metal treatment

Compositions

Heat treating

295277, 148 12R, 164 4, B22D 2506, C21D 714

Patent

active

039765130

ABSTRACT:
Herein disclosed is a method and an apparatus for judging the fitness of a steel composition for a particular casting practice in order to prevent excessive segregation of manganese and phosphorous in the course of the casting. We have discovered that the simultaneous segregation of manganese and phosphorous tends to cause the formation of bainite and/or martensite in steel plate product during the cooling of the steel plate after rolling. When the manganese and phosphorous concentrations satisfy the following requirement (1):

REFERENCES:
patent: 3127642 (1964-04-01), Zaeytydt
patent: 3367189 (1968-02-01), Curry, Jr.
patent: 3478808 (1969-11-01), Adams
patent: 3523833 (1970-08-01), Kroneis et al.
patent: 3779646 (1973-12-01), Hancart et al.

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