Aluminum Rod, Aluminum, 6061, T6511, Rod, Outside Diameter 3 in, Outside Diameter Tolerance +/-0.024 in, 6 ft Overall Length, Length Tolerance +/-6 in, Fabrication Extruded, Heat Treatment Tempered, Heat Treatable Heat Treatable, Mechanical Finish Mill, Yield Strength 40,000 psi, Tensile Strength 45,000 psi, 95 BHN Brinell Hardness, 60 HRB Rockwell Hardness, Includes Material Certificate Material Certificate with Lot Number, Standards AMS-QQ-A-220, ASTM B211, Minimum Temperature -320 Degrees F