Metal treatment – Compositions – Heat treating
Patent
1981-12-01
1983-02-15
Stallard, W.
Metal treatment
Compositions
Heat treating
148 124, C21D 900
Patent
active
043739725
ABSTRACT:
The invention concerns a method of producing nickel steel rod or bar of a composition including at least 4% by weight nickel and less than 0.2% by weight carbon. The method comprises cooling a rod or bar of such composition on leaving a rolling mill at a rate which is controlled to produce in the cooled rod or bar a micro-structure which is predominately martensitic.
REFERENCES:
patent: 4011109 (1977-03-01), Golland et al.
patent: 4017338 (1977-04-01), Kozak et al.
patent: 4106957 (1978-08-01), Tournoy
patent: 4146411 (1979-03-01), Dewsnap et al.
patent: 4236551 (1980-12-01), Worgt et al.
patent: 4242150 (1980-12-01), Maxwell
Burgin Sidney A.
Latham David J.
British Steel Corporation
Stallard W.
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