Aluminum Rectangular Bar, Aluminum, 6061, T6511, Rectangular, 36 in Overall Length, Length Tolerance +/-3 in, 5 in Overall Width, Width Tolerance +/-0.034 in, 3 in Thickness, Thickness Tolerance +/-0.024 in, Fabrication Extruded, Heat Treatment Tempered, Heat Treatable Heat Treatable, Mechanical Finish Mill, Yield Strength 40,000 psi, Tensile Strength 45,000 psi, 95 BHN Brinell Hardness, 95 HRB Rockwell Hardness, Includes Material Certificate Material Certificate with Lot Number .