EP1413636A1 Aluminum alloy excellent in machinability, and ...
A first aluminum alloy which comprises 0.3 to 6 mass of Mg, 0.3 to 10 mass of Si, 0.05 to 1 mass of Zn, 0.001 to 0.3 mass of Sr and the balanced amount of A1 and impurities a second aluminum alloy which comprises the elements contained in the first alloy in amounts described above and further comprise one or more selected from among Cu, Fe, Mn, Cr, Zr, Ti, Na and Ca A third aluminum ...