4130 Alloy Steel Round Tube, Material Alloy Steel, Material Grade 4130, Fabrication Seamless, Heat Treatable Yes, Mechanical Finish Mill, Inside Diameter 1.43 in, Outside Diameter 1 1/2 in, Overall Length 6 ft, Wall Thickness 0.035 in, Yield Strength 63,100 psi, Machinability Not Rated, Rockwell Hardness B82, Appearance Metallic, Application Aircraft Exterior, Fasteners, Gears, Structural Frames, Brinell Hardness 156, Includes Material Certificate Yes, Inside Diameter Tolerance Not Rated