12L14 Carbon Steel Rod Material Carbon Steel Material Grade 12L14 Overall Length 36 in Heat Treatable Yes Heat Treatment No Heat Treatment Mechanical Finish Mill Outside Diameter 4 in Outside Diameter Tolerance +0.0000 in/-0.0050 in Yield Strength 65 000 psi Fabrication Cold Finished Rockwell Hardness Not Rated Brinell Hardness 85 Tensile Strength 78 000 psi Machinability 193 Percent Length Tolerance +/-3.000 in Includes Material Certificate Yes Standards ASTM A108 ASTM A29