1018 Carbon Steel Plate Material Carbon Steel Material Grade 1018 Heat Treatable Yes Heat Treatment No Heat Treatment Mechanical Finish Precision Ground Overall Length 24 in Overall Width 8 in Thickness 0.25 in Thickness Tolerance +/-0.001 in Yield Strength 53 700 psi Fabrication Cold Finished Machinability 78 Percent Rockwell Hardness B71 Tensile Strength 63 800 psi Length Tolerance +0.375 in Width Tolerance +/-0.005 in Standards ASTM A681 Includes Material Certificate Yes