Aluminum Flat Bar Stock, Aluminum, 6061, T651, Flat, 3 in Overall Length, Length Tolerance +/-0.002 in, 2 in Overall Width, Width Tolerance +/-0.002 in, 1 in Thickness, Thickness Tolerance +/-0.002 in, Fabrication Cold Rolled, Heat Treatment Annealed, Heat Treatable Heat Treatable, Mechanical Finish Mill, Yield Strength 40,000 psi, Tensile Strength 45,000 psi, 95 BHN Brinell Hardness, 85 HRB Rockwell Hardness, Includes Material Certificate Material Certificate with Lot Number