Stainless Steel Round Tube 304 Stainless Steel 304 Round Tube 6 ft Overall Length Outside Diameter 1/4 in Inside Diameter 0.194 in Wall Thickness 0.028 in Fabrication Seamless Heat Treatable No Mechanical Finish Mill Yield Strength 31 200 psi Tensile Strength 73 200 psi 123 Brinell Hardness 70 Rockwell Hardness Includes Material Certificate Yes Standards ASTM A213 System of Measurement Inch