Aluminum Rod, Aluminum, 6061, T6511, Rod, Outside Diameter 3 1/8 in, Outside Diameter Tolerance +/-0.008 in, 6 in Overall Length, Length Tolerance +0.125 in/0 in, Fabrication Extruded, Heat Treatment Tempered, Heat Treatable Heat Treatable, Mechanical Finish Mill, Yield Strength 40,000 psi, Tensile Strength 45,000 psi, 93 BHN Brinell Hardness, 60 HRB Rockwell Hardness, Includes Material Certificate Material Certificate with Lot Number, Standards AMS QQA200/8, Minimum Temperature 1,080 Degrees F