Co-base heat resistant alloy
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United States of America Patent
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Oct 21, 1986
Grant Date -
N/A
app pub date -
Jan 25, 1985
filing date -
Jan 25, 1985
priority date (Note) -
Expired
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Abstract
A Co-base heat resistant alloy consisting essentially of: from 0.05 to 1% by weight of C, from 0.05 to 2% by weight of one or both of Si and Mn, from 31 to 40% by weight of Cr, from 5 to 15% by weight of Ni, from 2 to 12% by weight of one or both of W and Mo and from 0.1 to 5% by weight of Hf, and optionally further containing: from 0.01 to 1% by weight of one or both of Al and Y, from 0.5 to 3% by weight of one or both of Ta and Nb and from 0.005 to 0.1% by weight of one or both of B and Zr, the rest being Co and unavoidable impurities.
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