Half Round Bar Stainless Steel 304 Half Round Bar 12 in Overall Length Length Tolerance +0.125/-0.000 in Outside Diameter 1/2 in 0.25 in Thickness Thickness Tolerance +0.000/-0.006 in Heat Treatment Tempered Heat Treatable Yes Mechanical Finish Mill Yield Strength 31 200 psi Tensile Strength 73 200 psi 123 Brinell Hardness 70 Rockwell Hardness Includes Material Certificate Yes Standards AMS QQ-S-763 Minimum Temperature 2 550 Degrees F Maximum Temperature 2 651 Degrees F