Controlled expansion alloy

Details Controlled expansion alloy Controlled expansion alloy

C - Chemistry, Metallurgy

21

D

75/97, 148/55.2

C21D 6/00 (2006.01) C22C 19/00 (2006.01) C22C 38/14 (2006.01) C22F 1/10 (2006.01)

Patent

CA 1280914

ABSTRACT OF THE DISCLOSURE Describes heat-treating, nickel-iron and nickel-cobalt-iron alloys of the age-hardenable, controlled low expansion type by annealing in the range of 1750°F to 1900°F, cooling to ambient temperature, ageing at about 1300°F to 1500°F, air cooling to about 1100°F, ageing at about 1100°F to about 1250°F for up to 12 hours, and cooling to ambient temperature.

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