Malleable magnesium alloy

Abstract

A building structural material produced by A magnesium alloy contains aluminum in a range of 0.1 wt % to 1.0 wt %, zinc in a range of 0.1 wt % to 2.0 wt %, manganese in a range of 0.1 wt % to 1.0 wt %, 0.04 wt % or less copper, 0.05 wt % or less silicon, 0.005 wt % or less iron, and 0.005 wt % or less nickel. This building structural material had no cracks even when it was extruded at an extrusion speed about ten times as high as the conventional speed and also no ignition attributable to surface oxidation occurred.

What is claimed is:  
     
         1 . A magnesium alloy subjected to flattening to obtain a building structural material, 
 wherein the magnesium alloy contains aluminum in a range of 0.1 wt % to 1.0 wt %, zinc in a range of 0.1 wt % to 2.0 wt %, manganese in a range of 0.1 wt % to 1.0 wt %, 0.04 wt % or less copper, 0.05 wt % or less silicon, 0.005 wt % or less iron, and 0.005 wt % or less nickel.    
     
     
         2 . The magnesium alloy according to  claim 1 , wherein the magnesium alloy contains calcium in a range of 0.3 wt % to 1.0 wt %.  
     
     
         3 . The magnesium alloy according to  claim 1 , wherein the magnesium alloy contains rare earth elements including yttrium, neodymium and cerium, each in an amount of 100 ppm or less by weight.  
     
     
         4 . A building structural material produced by flattening the magnesium alloy according to claim  1 .