Process for improving the quality of steel sections

Details Process for improving the quality of steel sections Process for improving the quality of steel sections

1978-09-18

1980-05-20

Dean, R.

Metal treatment

Compositions

Heat treating

148 39, 148145, 148146, 148152, 148153, C21D 714

Patent

active

042037832

ABSTRACT:
The elastic limit and breaking load of steel sections are improved by a process of surface quenching and self-tempering comprising a cooling stage followed by rapid cooling which is interrupted to allow the quenched surface layer of the section to be tempered by heat from non-quenched inner portions of the section. The rapid cooling is succeeded by a slow cooling.

REFERENCES:
patent: 4016015 (1977-04-01), Respen et al.

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