High silicon niobium casting alloy and process for producing the same
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United States of America Patent
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Sep 6, 2011
Grant Date -
Oct 23, 2008
app pub date -
Sep 15, 2005
filing date -
Sep 15, 2005
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Abstract
An iron-based high-silicon alloy contains (in weight percent) 2.6-3.5% carbon, 3.7-4.9% silicon, 0.45-1.0% niobium, up to 0.6% manganese, up to 0.02% sulfur, up to 0.02% phosphorus, up to 0.5% nickel, up to 1.0% chromium, up to 0.1% magnesium, and the balance iron and up to 0.2% of other elements. The alloy is heat resistant and is suitable for use in producing, among other things, turbochargers, center housings, back plates, exhaust manifolds, and integrated turbo manifolds that are used in the automotive and truck manufacturing industries.
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