Alloy Steel Rectangular Bar, Material Alloy Steel, Material Grade 4142, Thickness 1 in, Thickness Tolerance +0.01 in/-0.045 in, Overall Length 24 in, Overall Width 3 in, Fabrication Hot Rolled, Heat Treatable Heat Treatable, Heat Treatment Oil-Hardened, Yield Strength 93,000 psi, Tensile Strength Not Rated, Brinell Hardness 261 BHN, Rockwell Hardness 28 HRC, Machinability 63 Percent, Standards ASTM A322, Includes Material Certificate Material Certificate with Lot Number, Length Tolerance +/-2 in