Aluminum Flat Bar Stock, Aluminum, 6061, T6511, Flat, 36 in Overall Length, Length Tolerance +/-3 in, 4 in Overall Width, Width Tolerance +/-0.034 in, 1 in Thickness, Thickness Tolerance +/-0.012 in, Fabrication Extruded, Heat Treatment Tempered, Heat Treatable Heat Treatable, Mechanical Finish Mill, Yield Strength 37,000 psi, Tensile Strength 42,000 psi, 95 BHN Brinell Hardness, 95 HRB Rockwell Hardness, Includes Material Certificate No Certificates Included, Standards ASTM B221, AMS QQ-A-200/3