Seamless Stainless Steel Round Tube offers a smooth surface both on inside and outside diameters, to allow smooth fluid transfer while offering increased overall psi ratings over welded tube. 316 Stainless Steel Round Tubing offers better corrosion and pitting resistance as well as higher strength at elevated temperatures than the 304 alloy. Corrosion resistance to seawater, atmospheric conditions, chemicals, acids and foods. Chrome-Nickel, Austenitic (Non-Magnetic).Material: Stainless SteelShape: Round TubeAlloy: 316Temper: AnnealedOutside Diameter: 0.5 inchesInside Diameter: 0.402 inchWall: 0.049 inchFinish: Mill (Unpolished)Specifications: ASTM A269, A249Tolerances: OD: (+/-0.005) | Wall: (+/-10%) | Length: (-0/+0.999)