{"product_id":"stainless-bros-1-50in-diameter-1-5d-2-25in-clr-180-degree-bend-6in-leg-6in-leg-mandrel-bend","title":"Stainless Bros 1.50in Diameter 1.5D \/ 2.25in CLR 180 Degree Bend 6in Leg \/ 6in Leg Mandrel Bend","description":"\u003cp\u003eThe Stainless Bros 1.50in Diameter 1.5D \/ 2.25in CLR 180 Degree Bend 6in Leg \/ 6in Leg Mandrel Bend (part number 601-03896-1150) is a precision-bent U-turn tube section built for custom exhaust and intake fabrication. Constructed from 16-gauge 304 stainless steel, this 1.5-inch OD mandrel bend maintains a smooth, consistent bore through the 180-degree arc, preserving exhaust flow where crush-bent tubing would restrict it. The 6-inch leg lengths on both sides give fabricators ample straight tubing to trim and fit without losing the mandrel-bent section.\u003c\/p\u003e\n\n\u003ch4\u003eFeatures and Benefits\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e16-gauge (0.065in wall) 304 stainless steel resists corrosion and withstands high exhaust temperatures\u003c\/li\u003e\n\u003cli\u003eMandrel-bent process maintains full round bore with no interior wrinkling or restriction\u003c\/li\u003e\n\u003cli\u003e1.5D radius (2.25in CLR) provides a smooth, gradual arc for reduced backpressure\u003c\/li\u003e\n\u003cli\u003e6in leg on each side allows easy trimming and welding integration into custom builds\u003c\/li\u003e\n\u003cli\u003ePolished OD finish simplifies visual inspection for defects and accepts welding without pre-cleaning\u003c\/li\u003e\n\u003cli\u003e180-degree bend angle is ideal for J-bends, U-bends, and loop-back exhaust routing\u003c\/li\u003e\n\u003cli\u003eConsistent wall thickness throughout the bend ensures reliable TIG or MIG weld joints\u003c\/li\u003e\n\u003cli\u003eVersatile single-piece construction eliminates the need for multiple short sections and extra welds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e601-03896-1150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eStainless Bros\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWall Thickness\u003c\/td\u003e\n\u003ctd\u003e16 gauge \/ 0.065in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube OD\u003c\/td\u003e\n\u003ctd\u003e1.50in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBend Radius\u003c\/td\u003e\n\u003ctd\u003e1.5D \/ 2.25in CLR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBend Angle\u003c\/td\u003e\n\u003ctd\u003e180 Degree\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLeg Length\u003c\/td\u003e\n\u003ctd\u003e6in \/ 6in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003ePolished OD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eStainless Bros limited warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Stainless Bros 1.5in 180-degree mandrel bend (part 601-03896-1150)\u003c\/li\u003e\n\u003cli\u003e6in straight leg on each end\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the tube OD for the 601-03896-1150?\u003c\/strong\u003e\u003cbr\u003e\nThe outside diameter is 1.50 inches. When mating to other tubing or couplers, use components sized for 1.5in OD \/ approximately 1.375in ID tubing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat does 1.5D radius mean for this mandrel bend?\u003c\/strong\u003e\u003cbr\u003e\n1.5D indicates the centerline radius is 1.5 times the tube diameter. For this 1.5in tube, the centerline radius (CLR) is 2.25 inches. A larger radius equals a gentler curve and less flow restriction compared to a 1D tight radius bend.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this bend suitable for turbocharged exhaust applications?\u003c\/strong\u003e\u003cbr\u003e\nYes. The 304 stainless steel handles exhaust temperatures well and the consistent bore prevents turbulence. The 1.5D radius is appropriate for downpipes, intercooler piping, and exhaust mid-pipe fabrication on turbo builds.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I weld the 601-03896-1150 to mild steel exhaust tubing?\u003c\/strong\u003e\u003cbr\u003e\nYes, with the correct filler rod (ER309L is commonly used for dissimilar metal welding). A TIG weld provides the cleanest, most durable joint. MIG welding is possible but requires proper stainless wire and shielding gas.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat wall thickness is this Stainless Bros mandrel bend?\u003c\/strong\u003e\u003cbr\u003e\nThe wall is 16 gauge, equivalent to 0.065 inches. This is the standard wall thickness used across the Stainless Bros 300-series mandrel bend line and is appropriate for performance exhaust and intake fabrication.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow long are the straight leg sections on each end?\u003c\/strong\u003e\u003cbr\u003e\nEach leg is 6 inches of straight tubing, giving you ample room to cut the bend to length or attach flanges and couplers. The overall arc adds additional length on top of the two 6-inch legs.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat applications is a 180-degree bend used for?\u003c\/strong\u003e\u003cbr\u003e\n180-degree mandrel bends are used for J-bends (single-exit cat-back), muffler inlet routing, hairpin turns in tight chassis locations, and custom heat exchanger or intercooler core plumbing where a U-turn is needed in a confined space.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes this bend require post-purchase finishing before welding?\u003c\/strong\u003e\u003cbr\u003e\nThe polished OD surface may have a light protective coating. Clean the weld area with acetone before TIG welding to ensure proper fusion. No grinding or heavy prep is required for standard welds.\u003c\/p\u003e\n\n\u003ch4\u003eInstallation Instructions\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eDry-fit the 601-03896-1150 bend in the desired location before cutting any tubing.\u003c\/li\u003e\n\u003cli\u003eMark the leg sections for trimming using a tube cutter or angle grinder with a cutoff wheel, ensuring square cuts.\u003c\/li\u003e\n\u003cli\u003eDeburr all cut ends with a file or deburring tool to prevent turbulence and ensure flush joint alignment.\u003c\/li\u003e\n\u003cli\u003eClean all weld areas with acetone to remove oils and contaminants prior to welding.\u003c\/li\u003e\n\u003cli\u003eTack-weld the bend into position using a TIG welder with ER308L or ER309L filler rod, checking alignment before completing full welds.\u003c\/li\u003e\n\u003cli\u003eComplete circumferential welds and allow to cool naturally. Do not quench stainless welds with water.\u003c\/li\u003e\n\u003cli\u003eInspect welds visually for full penetration and absence of porosity before final installation.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Stainless Bros","offers":[{"title":"Default Title","offer_id":40482990391375,"sku":"STB601-03896-1150","price":31.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/stainless-bros-1_50in-diameter-1_5d-2_25in-clr-180-degree-bend-6in-leg-6in-leg-mandrel-bend-steel-tubing-stainless-bros.jpg?v=1719929999","url":"https:\/\/www.blackopsautoworks.com\/products\/stainless-bros-1-50in-diameter-1-5d-2-25in-clr-180-degree-bend-6in-leg-6in-leg-mandrel-bend","provider":"Black Ops Auto Works","version":"1.0","type":"link"}