Carbon Steel Sheet, Material Carbon Steel, Material Grade A1011, Heat Treatable Not Heat Treatable, Heat Treatment Annealed, Mechanical Finish Mill, Overall Length 8 in, Overall Width 8 in, Thickness 0.135 in, Thickness Tolerance 0 in/-0.006 in, Yield Strength 36,000 psi, Fabrication Hot Rolled, Machinability Not Rated, Rockwell Hardness 75 HRB, Tensile Strength 58,000 psi, Length Tolerance +/-0.125 in, Width Tolerance +/-0.125 in, Standards ASTM A1011