Method of producing beryllium copper alloy member

Details Method of producing beryllium copper alloy member Method of producing beryllium copper alloy member

1990-10-09

1991-12-24

Dean, R.

Metal treatment

Compositions

Heat treating

148 2, C21D 806

Patent

active

050749226

ABSTRACT:
A beryllium copper alloy member is provided having both a high electrical conductivity of not less than 70% IACS and a high strength of not less than 70 kgf/mm.sup.2 by an extensively simplified production method which widely decreases the production cost of the alloy member. The method includes, shaping a cast ingot alloy consisting in weight basis of 0.15-0.6% of Be, 0.6-3.0% of Ni, and the test of Cu and unavoidable impurities to a desired shape by working it to destroy the cast organization structure of the alloy, heat annealing the shaped alloy at a condition of 400.degree.-650.degree. C..times.1-100 hrs, and cold working the heat annealed alloy to a final shape by a working rate of at least 80%.

REFERENCES:
patent: 4179314 (1979-12-01), Wikle
patent: 4394185 (1983-07-01), McClelland et al.
patent: 4425168 (1984-01-01), Goldstein et al.

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