Strengthening response in columbium-containing high-strength low

Details Strengthening response in columbium-containing high-strength low Strengthening response in columbium-containing high-strength low

1982-04-05

1983-09-20

O'Keefe, Veronica

Metal treatment

Compositions

Heat treating

75123R, 75124, 148 12R, C22C 3806, C22C 3812

Patent

active

044053886

ABSTRACT:
A high-strength, low-alloy steel sheet containing 0.01 to 0.1 percent C, 0.3 to 1.2 percent Mn, 0.03 to 0.15 percent Cb consistently produces yield strengths ranging from 75 to 100 ksi when the potential for placing and maintaining the Cb in solution in austenite is maximized, by adding sufficient titanium to combine with the nitrogen in the steel. The amounts of titanium employed, i.e. 0.010 to 0.045 percent, are substantially leaner than heretofore thought necessary to achieve such high yield strengths.

REFERENCES:
patent: 3795506 (1974-03-01), Yamaguchi et al.
patent: 4141761 (1979-02-01), Abraham et al.

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