Copper-chromium-titanium-silicon-alloy

Details Copper-chromium-titanium-silicon-alloy Copper-chromium-titanium-silicon-alloy

1987-10-02

1989-03-07

Roy, Upendra

Alloys or metallic compositions

Copper base

Silicon containing

420492, 420495, C22C 900, C22F 108

Patent

active

048104680

ABSTRACT:
The invention relates to a copper-chromium-titanium-silicon-alloy, which consists essentially of 0.10 to 0.50% chromiun; 0.01 to 0.25% titanium; silicon; the remainder being copper and the usual impurities, wherein the silicon content (a) is more than 0.1-times of the titanium content, (b) when the titanium content is up to 0.099% the silicon content is limited by the equation:

REFERENCES:
patent: 2189198 (1940-02-01), Comstock
patent: 4036642 (1977-07-01), Watson et al.
patent: 4260435 (1981-04-01), Edens
patent: 4366117 (1982-12-01), Tsuji
patent: 4601879 (1986-07-01), Duerrschnabel et al.
patent: 4678637 (1987-07-01), Duerrschnabel et al.
Leadframe Materials from Tamagawa, Tamagawa Metal & Machinery Co., Ltd., pp. i-iii, 3, 4, 10.

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