1018 Carbon Steel Hex Bar, Material Carbon Steel, Material Grade 1018, Fabrication Cold Finished, Heat Treatable Yes, Heat Treatment No Heat Treatment, Hex Width 3/8 in, Mechanical Finish Mill, Overall Length 6 ft, Rockwell Hardness Not Rated, Brinell Hardness 70, Tensile Strength Not Rated, Yield Strength 54,000 psi, Machinability 78 Percent, Standards ASTM A108, ASTM A29, Shape Hex Bar, Appearance Unpolished, Length Tolerance +/-6 in, Straightness Tolerance Not Rated