Stainless Steel Flat Bar Stainless Steel 17-4 Rectangular Bar 6 in Overall Length Length Tolerance +0.125/-0 in 1 1/2 in Overall Width Width Tolerance +/-0.031 in 0.5 in Thickness Thickness Tolerance +/-0.016 in Fabrication Hot Rolled Heat Treatment Annealed Heat Treatable Yes Mechanical Finish Unpolished Yield Strength 170 000 psi Tensile Strength 190 000 psi 352 Brinell Hardness 36 Rockwell Hardness Includes Material Certificate Yes Standards AMS 5643 ASTM A564 ASTM F899