Carbon Steel Rectangular Bar, Material Carbon Steel, Material Grade 1075, Thickness 0.025 in, Thickness Tolerance +/-0.001 in, Overall Length 5 ft, Overall Width 6 in, Fabrication Cold Rolled, Heat Treatable Heat Treatable, Heat Treatment Tempered, Yield Strength Not Rated, Tensile Strength Not Rated, Brinell Hardness 409, Rockwell Hardness 409 to 442, Machinability Not Rated, Standards ASTM A684, Includes Material Certificate Material Certificate with Lot Number, Length Tolerance +0.125 in/0 in