Heat resistant titanium alloy material for exhaust system part use excellent in oxidation resistance, method of production of heat resistant titanium alloy material for exhaust system part use excellent in oxidation resistance, and exhaust system
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United States of America Patent
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Jul 23, 2019
Grant Date -
Jul 12, 2018
app pub date -
Dec 22, 2017
filing date -
Dec 28, 2009
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Abstract
A titanium alloy material for exhaust system parts excellent in oxidation resistance and cold workability able to be used for an exhaust manifold, exhaust pipe, catalyst device, muffler, or other part characterized by containing, by mass %, Cu: 0.5 to 1.5%, Sn: 0.5 to 1.5%, Si: 0.1% to 0.6%, O: 0.1% or less, and Fe: 0.15% or less, and a balance of Ti and impurities, having a total of the contents of Cu and Sn of 1.4 to 2.7%, and having a total of the volume rates of the β-phases and Ti—Cu and Ti—Si intermetallic compounds of 1.0% or less.
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