On this page 5 sections
Key features of u-bend tubes
- Bent to specified radii and leg lengths
- Bend-zone stress relief or annealing
- Hydro and eddy-current testing after bending
- Stainless, duplex, nickel alloy, titanium and carbon steel
U-Bend Tubes by material
U-Bend Tubes are available in the following grades. Select a grade for specifications and sizes.
Stainless Steel
- SS 201 U-Bend Tubes
- SS 202 U-Bend Tubes
- SS 304 U-Bend Tubes
- SS 304L U-Bend Tubes
- SS 304H U-Bend Tubes
- SS 309 U-Bend Tubes
- SS 309S U-Bend Tubes
- SS 310 U-Bend Tubes
- SS 310S U-Bend Tubes
- SS 316 U-Bend Tubes
- SS 316L U-Bend Tubes
- SS 316Ti U-Bend Tubes
- SS 317 U-Bend Tubes
- SS 317L U-Bend Tubes
- SS 321 U-Bend Tubes
- SS 321H U-Bend Tubes
- SS 347 U-Bend Tubes
- SS 347H U-Bend Tubes
- SS 409 U-Bend Tubes
- SS 430 U-Bend Tubes
- SS 441 U-Bend Tubes
- SS 446 U-Bend Tubes
- SS 904L U-Bend Tubes
- Duplex 2205 U-Bend Tubes
- Super Duplex 2507 U-Bend Tubes
- SS 253 MA U-Bend Tubes
- SS 254 SMO U-Bend Tubes
Nickel Alloys
- Inconel 600 U-Bend Tubes
- Inconel 601 U-Bend Tubes
- Inconel 625 U-Bend Tubes
- Inconel 718 U-Bend Tubes
- Incoloy 800 U-Bend Tubes
- Incoloy 800H U-Bend Tubes
- Incoloy 800HT U-Bend Tubes
- Incoloy 825 U-Bend Tubes
- Monel 400 U-Bend Tubes
- Hastelloy C22 U-Bend Tubes
- Hastelloy C276 U-Bend Tubes
- Nickel 200 U-Bend Tubes
- Nickel 201 U-Bend Tubes
U-Bend Tubes: sizes, finishes and testing
- Size range
- OD 3 mm to about 127 mm (¼" to 5") typical, wall 0.5 mm to 12 mm; BWG or mm; straight lengths up to about 30 m, U-bent to drawing
- Finish
- Annealed & pickled, bright annealed (BA), polished (sanitary), cold-drawn
- Ends
- Plain square-cut, deburred; U-bends with stress-relieved bends on request
Testing & documents
- Eddy-current and/or ultrasonic testing on each tube
- Hydrostatic or pneumatic test
- Flattening, flaring and flange tests
- Grain size (H grades), IGC and hardness when specified
- Surface roughness (Ra) for sanitary and instrumentation tube
- EN 10204 3.1 certificate; 3.2 with third-party inspection
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Other tubes types
Frequently asked questions
What sizes are u-bend tubes available in?
OD 3 mm to about 127 mm (¼" to 5") typical, wall 0.5 mm to 12 mm; BWG or mm; straight lengths up to about 30 m, U-bent to drawing.
Which specifications cover u-bend tubes?
The product specification for the grade, with dimensions to the relevant ASME or EN standard.
What are u-bend tubes used for?
Bend-zone stress relief or annealing. Bends are made to specified radii, with wall thinning and ovality controlled, and the bend zone is stress-relieved or solution annealed when required.
Which materials are u-bend tubes available in?
Stainless steel, nickel alloys, carbon and alloy steel and non-ferrous metals, depending on the specification. See the material list above.