Copper-Zinc Alloy for a Valve Guide
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United States of America Patent
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Mar 22, 2013
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Dec 2, 2004
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Abstract
A novel copper-zinc alloy is particularly suited for a valve guide. The copper-zinc alloy is formed of 59 to 73% copper, 3.1 to 8.3% manganese, 2 to 6% aluminum, 0.5 to 2% silicon, 0.2 to 1.2% iron, and the remainder zinc and inevitable impurities.
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