An aluminium alloy suitable for diecasting of components with high
elongation in the cast state comprises, as well as aluminium and
unavoidable impurities, 9.0 to 11.0 w. % silicon, 0.5 to 0.9 w. %
manganese, max 0.06 w. % magnesium, 0.15 w. % iron, max 0.03 w. % copper,
max 0.10 w. % zinc, max 0.15 w. % titanium, 0.05 to 0.5 w. % molybdenum
and 30 to 300 ppm strontium or 5 to 30 ppm sodium and/or 1 to 30 ppm
calcium for permanent refinement. Optionally, the alloy also contains 0.05
to 0.3 w. % zirconium and for grain refinement gallium phosphide and/or
indium phosphide in a quantity corresponding to 1 to 250 ppm phosphorus
and/or titanium and boron added by way of an aluminium master alloy with 1
to 2 w. % Ti and 1 to 2 w. % B.
