Method for pressurized water quenching of rolled steel products

Details Method for pressurized water quenching of rolled steel products Method for pressurized water quenching of rolled steel products

1985-02-21

1986-06-03

Stallard, Wayland

Metal treatment

Compositions

Heat treating

148 124, C21D 710

Patent

active

045927880

ABSTRACT:
A method for pressurized water quenching of rolled steel products wherein the product is cooled so abruptly on its surface, at a quenching from a final rolling temperature of approximately 1000.degree. C. to an equilibrium temperature of above 500.degree. C., the temperature of the core immediately after the completion of the quenching is no more than only 30.degree. C. below the original final rolling temperature. The shorter cooling periods lead to a thinner martensitic layer, and a greater portion of the ferritic-perlitic core mass resulting in an increase in ductility with little change in strength.

REFERENCES:
patent: 4016009 (1977-04-01), Economopolous et al.
patent: 4046599 (1977-09-01), Economopolous
patent: 4108695 (1978-08-01), Paulitsch et al.
patent: 4146411 (1979-03-01), Dewsnap et al.
patent: 4175985 (1979-11-01), Blandelot et al.
patent: 4180418 (1979-12-01), Paulitsch et al.

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