Aluminum alloy, and aluminum alloy casting

Abstract

Provided are a metal alloy and more particularly, to an aluminum alloy used for electrical, electronic, and mechanical components, and an aluminum alloy casting manufactured using the aluminum alloy. The aluminum alloy according to an embodiment includes 4 to 13 wt % of silicon (Si), 1 to 5 wt % of copper (Cu), 26 wt % or more and less than 40 wt % of zinc (Zn), and a balance being aluminum (Al) and unavoidable impurities.

What is claimed is: 
     
         1 . An aluminum alloy comprising:
 4 wt % to 13 wt % of silicon (Si);   1 wt % to 5 wt % of copper (Cu);   26 wt % or more and less than about 40 wt % of zinc (Zn); and   a balance being aluminum (Al) and unavoidable impurities.   
     
     
         2 . The aluminum alloy of  claim 1 , wherein a content of the silicon (Si) is 5 wt % to 10 wt %. 
     
     
         3 . The aluminum alloy of  claim 2 , wherein the content of the silicon (Si) is 5 wt % to 8 wt % or less. 
     
     
         4 . The aluminum alloy of  claim 3 , wherein a content of the copper (Cu) is 2 wt % to 5 wt %. 
     
     
         5 . The aluminum alloy of  claim 4 , wherein a content of the zinc (Zn) is 26 wt % to 35 wt %. 
     
     
         6 . An aluminum alloy comprising:
 4 wt % to 13 wt % of silicon (Si);   1 wt % to 5 wt % of copper (Cu);   26 wt % or more and less than 40 wt % of zinc (Zn);   0.1 wt % or less of strontium (Sr); and   43 wt % to t 69 wt % of aluminum (Al).   
     
     
         7 . The aluminum alloy of  claim 6 , wherein a content of the silicon (Si) is 5 wt % to 10 wt %. 
     
     
         8 . The aluminum alloy of  claim 7 , wherein the content of the silicon (Si) is 5 wt % to 8 wt % or less. 
     
     
         9 . The aluminum alloy of  claim 8 , wherein a content of the copper (Cu) is 2 wt % to 5 wt %. 
     
     
         10 . The aluminum alloy of  claim 9 , wherein a content of the zinc (Zn) is 26 wt % to 35 wt %. 
     
     
         11 . The aluminum alloy of  claim 6 , wherein a content of the strontium (Sr) is 0.04 wt % or less (excluding 0). 
     
     
         12 . The aluminum alloy of  claim 11 , wherein the content of the strontium (Sr) is 0.02 wt % or less (excluding 0). 
     
     
         13 . The aluminum alloy of  claim 6 , further comprising a total of about 3 wt % or less (more than 0) of any one or more elements selected from the group consisting of titanium (Ti), magnesium (Mg), nickel (Ni), vanadium (V), tin (Sn), iron (Fe), chromium (Cr), zirconium (Zr), scandium (Sc), and manganese (Mn). 
     
     
         14 . An aluminum alloy casting manufactured by using the aluminum alloy according to any one of  claims 1  to  13 .