Product externally alloyed with ZR, method for manufacture of same, and use of same
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United States of America Patent
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Apr 22, 1997
Issued Date -
N/A
app pub date -
Sep 22, 1994
filing date -
Jul 9, 1992
priority date (Note) -
Expired
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Abstract
A product having at least an exterior surface formed by a Zr alloy comprising the following addition elements (% by weight): Sn 0.40 to 1.70, Fe 0.05 to 0.25, Cr 0.03 to 0.16, Ni less than 0.08; the following maximum amounts of impurities (ppm): Al 75, B 0.5, Cd 0.5, C 270, Co 20, Cu 50, Hf 100, H.sub.2 25, Mg 20, Mn 50, Mo 50, N.sub.2 65, Si 120, Ti 50, W 10, U total 3.5; with the balance being O.sub.2 and Zr, wherein the Zr alloy has an Ni content which is greater than 70 ppm and less than 300 ppm.
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