90 Degree Mandrel Bend, 2.75 O.D. Description 90 Degree Mandrel Bend, 2.75 O.D. Material T304 Stainless Steel Warranty Five Year Limited Warranty Part Specifications Tube Diameter - 2.75 O.D. Centerline Radius - 2.75 Leg Length A - 4 Leg Length B - 12 Tube Thickness - 0.065 (1.65mm)- Ideal for building custom exhaust systems, headers, downpipes, intercooler piping, etc....- T304 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.