Weldable high strength Al-Mg-Si alloy product
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United States of America Patent
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Issued Date -
May 8, 2003
app pub date -
Jul 5, 2002
filing date -
Jul 9, 2001
priority date (Note) -
Abandoned
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Abstract
The invention relates to a weldable, high-strength aluminum alloy rolled product containing the elements, in weight percent, Si 0.8 to 1.3, Cu 0.2 to 0.45, Mn 0.5 to 1.1, Mg 0.45 to 1.0, Fe 0.01 to 0.3, Zr<0.25, Cr<0.25, Zn<0.35, Ti<0.25, V<0.25, others each <0.05 and total <0.15, balance aluminum, and further with the proviso that the weight percent of 'available Si' is in the range of 0.86 to 1.15, preferably in the range of 0.86 to 1.05. The weight percentage ('wt. %') of 'available Si' is calculated according to the equation: wt. % Si(available)=wt. % Si-(wt. % Fe+wt. % Mn)/6
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