Metal treatment – Compositions – Heat treating
Patent
1980-09-05
1982-02-09
Stallard, W.
Metal treatment
Compositions
Heat treating
C21D 952
Patent
active
043148603
ABSTRACT:
Method for heat treating hot rolled steel wire rod in direct sequence with the final finishing stand of a rod hot rolling mill which comprises a series of steps of subjecting the rod emerging from the rolling mill to a direct controlled cooling in the range of Ms to 550.degree. C. by utilizing the retained heat of the rod, and subsequently reheating it to a temperature as equal as the nose temperature of TTT diagram with a view to achieving the complete transformation to the sorbite structure, whereby a wire rod product having the mechanical properties equal to those of a rod resulting from the lead patenting process can be obtained.
REFERENCES:
patent: 3231432 (1966-01-01), McLean et al.
patent: 3645805 (1972-02-01), Hoffmann et al.
patent: 3783043 (1974-01-01), Almond et al.
Nippon Steel Corporation
Stallard W.
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