Carbon Steel Plate, Material Carbon Steel, Material Grade 1018, Heat Treatable Heat Treatable, Heat Treatment Case-Hardened, Mechanical Finish Mill, Overall Length 4 ft, Overall Width 6 1/2 in, Thickness 1 in, Thickness Tolerance 0 in/-0.0013 in, Yield Strength 54,000 psi, Fabrication Cold Rolled, Machinability 78 Percent, Rockwell Hardness Not Rated, Tensile Strength 80,000 psi, Length Tolerance +/-4 in, Width Tolerance 0 in/-0.0013 in, Standards ASTM A108, ASTM A29