PROCESS FOR MAKING A NOVEL COPPER BASE ALLOY

A method of preparing a copper alloy is disclosed which comprises providing in the alloy about 0.8 - 2.3% iron and about 0.3 - 1.7% cobalt, such that the amount of iron plus cobalt ranges from about 1.5 - 2.5%, from about 5 - 13% zinc, balance essentially copper. The alloy is hot rolled at a tempera...

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Bibliographische Detailangaben
Hauptverfasser:	FRIEDMAN S,US, PRYOR M,US, CRANE J,US
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A method of preparing a copper alloy is disclosed which comprises providing in the alloy about 0.8 - 2.3% iron and about 0.3 - 1.7% cobalt, such that the amount of iron plus cobalt ranges from about 1.5 - 2.5%, from about 5 - 13% zinc, balance essentially copper. The alloy is hot rolled at a temperature of at least 500 DEG C, and cold rolled by a process which includes conducting at least one interanneal between successive cold reductions. The interanneal is conducted at temperatures ranging from about 400 to 600 DEG C for a period of at least 15 minutes. Processing may also include a final anneal at a temperature of from 350 to 600 DEG C conducted for at least 15 minutes. The novel alloy of this invention possesses a combination of strength and electrical conductivity which makes it a suitable replacement for the C.D.A. 400 series tin-brass alloys.