' Plate Stock, Tread Pattern, Carbon Steel, Alloy Type 1009, Thickness 1/4 In, Width 1 Ft, Length 1 Ft, Temper Hot Rolled, Thickness Tolerance +/-0.017 In, Width Tolerance +/-0.125 In, Length Tolerance +/-0.125 In, Typical Tensile Strength 60, 000 PSI, Typical Yield Strength 33, 000 PSI, Typical Hardness 149, Hardness Scale BHN, ASTM A786 Standards '