Stainless Steel Flat Bar Stainless Steel 316 Hex Bar 12 in Overall Length Length Tolerance +0.125/-0 in 1/2 in Hex Width Width Tolerance +0.000 in/-0.004 in Fabrication Cold Finished Heat Treatment Annealed Heat Treatable No Mechanical Finish Unpolished Yield Strength 34 800 psi Tensile Strength 79 800 psi 149 Brinell Hardness 80 Rockwell Hardness Includes Material Certificate Yes Standards AMS 5648 AMS 5653 AMS QQ-S-763 ASTM A262 ASTM A276 ASTM A479