A36 Carbon Steel Rectangular Bar Material Carbon Steel Material Grade A36 Thickness 2.5 in Thickness Tolerance +/-0.0312 in Overall Length 6 ft Overall Width 3 1/2 in Fabrication Hot Rolled Heat Treatable No Heat Treatment No Heat Treatment Mechanical Finish Mill Yield Strength 36 000 psi Tensile Strength 67 000 psi Brinell Hardness Not Rated Rockwell Hardness Not Rated Machinability 72 Percent Standards ASTM A36 Shape Rectangular Bar System of Measurement Inch