Carbon Steel Hex Bar, Material Carbon Steel, Material Grade 12L14, Fabrication Cold Rolled, Heat Treatable Heat Treatable, Heat Treatment No Heat Treatment, Hex Width 1 1/2 in, Mechanical Finish Mill, Overall Length 36 in, Rockwell Hardness Not Rated, Brinell Hardness 85 BHN, Tensile Strength 78,000 psi, Yield Strength 60,000 psi, Machinability 193 Percent, Standards ASTM A108, ASTM A29, Shape Hexagon, Appearance Unpolished, Includes Material Certificate Material Certificate with Lot Number