Chromized steel substrate

Details Chromized steel substrate Chromized steel substrate

1976-06-21

1977-08-16

Steiner, Arthur J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

75123J, 148 36, 148127, 148 315, 427253, 428562, 428926, B32B 1518

Patent

active

040424260

ABSTRACT:
An improved steel substrate for preparing chromized steel, the substrate consisting essentially of a flat rolled plain low carbon columbium treated steel initially having a total carbon content of at least 0.03% and containing about 0.03-0.15% columbium. The steel substrate is the flat rolled product of the solidification of molten steel having the above composition. The carbon content of the steel substrate is partially stabilized whereby a controlled portion of the carbon is free to diffuse upon heating to an elevated chromizing temperature. The carbon content which is free to diffuse, the columbium content, and the thickness of the substrate are carefully correlated whereby the overall quality of the chromized product prepared therefrom may be controlled and maintained at optimum levels. The invention further provides the improved chromized steel products prepared thereby.

REFERENCES:
patent: 2255482 (1941-09-01), Daeves et al.
patent: 2399848 (1946-05-01), Becker et al.
patent: 2791517 (1957-05-01), Becker et al.
patent: 3102831 (1963-09-01), Tisdale
patent: 3222212 (1965-12-01), Samuel et al.
patent: 3753758 (1973-08-01), Shanley
patent: 3775151 (1973-11-01), Baker et al.
patent: 3988173 (1976-10-01), Kawano

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