Aluminum alloy

Abstract

The present disclosure relates to an aluminum alloy having chloride resistance and corrosion resistance against harmful gas environments as well as processability to the extent of undergoing extrusion and drawing. The aluminum alloy according to the present disclosure comprise 0.1-4.5 wt % of Mg, 0.1-0.60 wt % of Zn, 0.05-0.1 wt % of Fe, 0.05-0.1 wt % of Si, and the balance Al.

What is claimed is: 
     
         1 . An aluminum alloy, comprising:
 0.1 to 0.45 wt % of Mg;   0.1 to 0.60 wt % of Zn;   0.05 to 0.1 wt % of Fe;   0.05 to 0.1 wt % of Si; and   a balance of Al.   
     
     
         2 . The aluminum alloy of  claim 1 , wherein the Mg is 0.15 to 0.35 wt %. 
     
     
         3 . The aluminum alloy of  claim 1 , wherein the Zn is 0.3 to 0.55 wt %. 
     
     
         4 . The aluminum alloy of  claim 1 , wherein a total of wt % of the Mg, the Zn, the Fe and the Si does not exceed 1.0 wt %. 
     
     
         5 . The aluminum alloy of  claim 1 , wherein at least one from among a Mg 32 (Al, Zn) 49  phase and Al 3 Mg 2  phase is formed by the Mg and the Zn. 
     
     
         6 . The aluminum alloy of  claim 5 , wherein a fraction of the Mg 32 (Al, Zn) 49  phase does not exceed 0.05%. 
     
     
         7 . The aluminum alloy of  claim 5 , wherein a fraction of the Al 3 Mg 2  phase does not exceed 0.02%.