On this page 5 sections
Key features of welded tubes
- Uniform wall and concentricity
- Economical for heat exchangers
- Specs: ASTM A249, A269, A270, B626
- Available in very long lengths
Welded Tubes by material
Welded Tubes are available in the following grades. Select a grade for specifications and sizes.
Stainless Steel
- SS 201 Welded Tubes
- SS 202 Welded Tubes
- SS 304 Welded Tubes
- SS 304L Welded Tubes
- SS 304H Welded Tubes
- SS 309 Welded Tubes
- SS 309S Welded Tubes
- SS 310 Welded Tubes
- SS 310S Welded Tubes
- SS 316 Welded Tubes
- SS 316L Welded Tubes
- SS 316Ti Welded Tubes
- SS 317 Welded Tubes
- SS 317L Welded Tubes
- SS 321 Welded Tubes
- SS 321H Welded Tubes
- SS 347 Welded Tubes
- SS 347H Welded Tubes
- SS 409 Welded Tubes
- SS 430 Welded Tubes
- SS 441 Welded Tubes
- SS 446 Welded Tubes
- SS 904L Welded Tubes
- Duplex 2205 Welded Tubes
- Super Duplex 2507 Welded Tubes
- SS 253 MA Welded Tubes
- SS 254 SMO Welded Tubes
Nickel Alloys
- Inconel 600 Welded Tubes
- Inconel 601 Welded Tubes
- Inconel 625 Welded Tubes
- Inconel 718 Welded Tubes
- Incoloy 800 Welded Tubes
- Incoloy 800H Welded Tubes
- Incoloy 800HT Welded Tubes
- Incoloy 825 Welded Tubes
- Monel 400 Welded Tubes
- Hastelloy C22 Welded Tubes
- Hastelloy C276 Welded Tubes
- Nickel 200 Welded Tubes
- Nickel 201 Welded Tubes
Welded 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 welded 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 welded tubes?
Specs: ASTM A249, A269, A270, B626.
What are welded tubes used for?
Economical for heat exchangers. They provide excellent concentricity and wall uniformity and are widely used for heat exchangers (ASTM A249), general service (A269) and sanitary process lines (A270).
Which materials are welded tubes available in?
Stainless steel, nickel alloys, carbon and alloy steel and non-ferrous metals, depending on the specification. See the material list above.