Aluminum Rectangular Bar, Aluminum, 6063, T52, Rectangular, 4 ft Overall Length, Length Tolerance +0.125 in/0 in, 1 1/2 in Overall Width, Width Tolerance +/-0.014 in, 0.1875 in Thickness, Thickness Tolerance +/-0.007 in, Fabrication Extruded, Heat Treatable Heat Treatable, Mechanical Finish Mill, Yield Strength 21,000 psi, Tensile Strength 27,000 psi, 60 BHN Brinell Hardness, Includes Material Certificate Material Certificate with Lot Number, Standards AMS-QQ-A-200/9, ASTM B221