7000 Alloy having high mechanical strength and a process for obtaining it
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United States of America Patent
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Oct 1, 1996
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N/A
app pub date -
Feb 22, 1995
filing date -
Mar 2, 1994
priority date (Note) -
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Abstract
AA 7000 series alloys having high mechanical strength and a process for obtaining them. The alloys contain, by weight, 7 to 13.5% Zn, 1 to 3.8% Mg, 0.6 to 2.7% Cu, 0 to 0.5% Mn, 0 to 0.4% Cr, 0 to 0.2% Zr, others up to 0.05% each and 0.15% total, and remainder Al. Either wrought or cast alloys can be obtained, and the specific energy associated with the DEA melting signal of the product is lower than 3 J/g.
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