Part Specifications ——————-Tube Diameter 3.” O.D. Centerline Radius 5″ Leg Length A 5″ Leg Length B 5″ Tube Thickness .65″ (1.65mm) Ideal for building custom exhaust systems, headers, downpipes, intercooler piping, etc…. T34 Stainless Steel is a non-magnetic alloy that possesses very high chromium and nickel content, making it much more capable of withstanding acidic, high heat and corrosive conditions than regular (mild) steel.