Nonmagnetic steels having low thermal expansion coefficients and

Details Nonmagnetic steels having low thermal expansion coefficients and Nonmagnetic steels having low thermal expansion coefficients and

1980-10-15

1983-02-15

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75126B, 75126Q, 75123L, C22C 3802, C22C 3804, C22C 3834, C22C 3838

Patent

active

043739512

ABSTRACT:
Low nonmagnetic steel having a thermal expansion coefficient of 1.0.about.1.3.times.10.sup.-5 /.degree. C. and a high yielding point of higher than 36 Kg/mm.sup.2 consists of less than 0.5% by weight of C, less than 2% by weight of Si, 20.about.30% by weight of Mn, and 0.005.about.0.04% by weight of N and the balance of iron and impurities, wherein the following relationships between the amounts of C and Mn are simultaneously satisfied.

REFERENCES:
patent: 3698889 (1972-10-01), Bungardt et al.
patent: 4017711 (1977-04-01), Honma et al.
patent: 4256516 (1981-03-01), Ouchi et al.

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