Vibrant Performance 304 Stainless Steel UJ Mandrel Bends Vibrant Performance 304 Stainless Steel UJ Mandrel Bends Vibrant Performance 304 Stainless Steel UJ Mandrel Bends Vibrant Performance T304 Stainless Steel 3.5 Inch O.D. U J Mandrel Bend. Description: U J Mandrel Bend, 1. 5" O. D. Material: T304 Stainless Steel Warranty: One Year Limited Warranty Part Specifications: Tube Diameter 1. 75" O. D. U Bend Centerline Radius 2. 75" Leg Length A 4. 5" Leg Length B 8" Leg Length C 8" Tube Thickness 0. 065" (1. 65mm) Vibrant's unique U J Mandrel Bent Tubing combines a 180 degree bend and a 45 degree bend into one integral unit to give fabricators the ability to get up to 3 seperate bends and a substantial straight length from each piece. 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.