Chalco aluminum’s Precision ground aluminum blanks
has been widely used in aviation and military industry. Our Precision ground aluminum blanks are characterize
d by good plasticity after solid solution treatment and excellent heat treatment strengthening effect.To avoid the tendency of stress corrosion cracking completely, the two-stage aging treatment greatly improves the ability of alloy to resist stress corrosion cracking. Thickness ranges and sizes for the Precision ground aluminum blanks :
 
Plate thickness between  5mm---100mm
Other dimension available on request
 
Tolerance of Precision ground aluminum blanks :
Surface: Precision milled
Surface roughness Ra  <=0.4um
Thickness tolerance: +/-0.05mm
Flatness:     6---12mm   thickness<=0.30mm
     >12-100mm  thickness<=0.12mm
Tolerance in width: -0+10mm
Tolerance in length: -0+15mm