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Aluminum alloy with low susceptibility to casting cracks and aluminum alloy castings using the same
Aluminum alloy with low susceptibility to casting cracks and aluminum alloy castings using the same
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摘要
An aluminum alloy for casting, which has high strength and high ductility (high toughness) even in an as-cast state, while reducing the occurrence of casting cracks while reducing the amounts of Si and Sr in the alloy. An aluminum alloy casting suitable for a structural member such as a car. SOLUTION: The casting aluminum alloy of the present invention has a weight percentage of 4.00%≤Mg≤6.00%, 0.01%≤Si≤0.40%, 0.50%≤Mn≤1. 50%, 0.00%≤Fe≤0.50%, 0.01%≤Ti≤0.09%, 0.0001%≤B≤0.0400%, 0.0040%≤Sr≤0.0090% And the balance consists of Al and unavoidable impurities. [Selection diagram] Figure 1
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