Aluminum Round Tube, Aluminum, 6061, T6, Round, 4 ft Overall Length, Outside Diameter 1 5/8 in, Inside Diameter 1.527 in, 0.049 in Wall Thickness, Fabrication Cold Drawn, 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 ASTM B210, System of Measurement Inch