Aluminum Rod, Aluminum, 6061, Rod, Outside Diameter 1/2 in, Outside Diameter Tolerance +/-0.002 in, 12 in Overall Length, Length Tolerance +/-0.0625 in, Fabrication Extruded, Heat Treatment Tempered, Heat Treatable Heat Treatable, Mechanical Mill, Yield Strength 44,000 psi, Tensile Strength 47 psi, 82 BHN Brinell Hardness, 85 HRF Rockwell Hardness, Standards ASTM B221, Alloy Type 6061.