U bend Stainless Steel Tube

Product Overview

Yunming Metal’s U bend stainless steel tubes are specially manufactured for heat exchanger and boiler applications that require precise tube bending, high temperature resistance, and long service life. With advanced bending equipment and strict dimensional control, our U tubes ensure optimal fluid flow, minimal stress, and excellent mechanical performance under pressure. Available in a wide range of stainless steel grades including 304, 316L, 321, 310S, 317L, 904L, duplex 2205, 2507, and more.

Application Areas

• Heat exchangers

• Boiler systems

• Condensers

• Superheaters

• Petrochemical industry

• Power generation plants

Product Features

• Precise U bending with tight radius control

• Uniform wall thickness and dimensional consistency

• High resistance to heat, pressure, and corrosion

• Available in both seamless and welded tube options

• Wide selection of material grades and standards

Technical Specifications

Outer Diameter (OD): 6 mm – 38 mm (custom sizes available)
Wall Thickness: 0.5 mm – 4.0 mm
Tube Length: Up to 18 meters before bending, U-leg length customized
Bending Radius: Minimum 1.5 x OD or as specified
Tube Form: Seamless or welded
Material Grades: 304, 316L, 321, 310S, 317L, 904L, 2205, 2507, and more
Standards: ASTM A213 / A269 / A312 / EN 10216-5 / ISO / GB

Manufacturing Process

• Cold drawn or welded tube

• Precision U bending using CNC equipment

• Stress relieving, annealing, and pickling

• 100% hydrostatic or eddy current tested as required

FAQ

Q: Are custom bending radii available?
A: Yes, we support custom U bending radius, leg length, and center-to-center dimensions per customer drawings.

Q: What material grades can you supply?
A: We supply a wide range of grades including 304, 316L, 321, 310S, 317L, 904L, duplex 2205, 2507, and more.

Q: Are the tubes tested before delivery?
A: Yes, all tubes can be pressure-tested or eddy-current tested depending on project requirements.