ASTM A213 TP316L Stainless Steel Seamless U Bend Tube

Product Overview

Precision U Bend Tubes for Heat Exchanger Tube Bundles

ASTM A213 TP316L Seamless U Bend Tubes are manufactured from seamless stainless steel tubes through precision cold bending and heat treatment processes for shell and tube heat exchangers, condensers and boilers.

Compared with straight tubes, U bend tubes eliminate intermediate welded joints inside the heat exchanger, reducing potential leakage points while improving structural reliability and thermal efficiency. Each tube is bent to the specified centerline radius and inspected to ensure dimensional accuracy, wall thickness integrity and surface quality.

The low-carbon TP316L stainless steel provides excellent resistance to pitting and intergranular corrosion after welding, making these tubes suitable for chloride-containing cooling water, chemical processing fluids and industrial heat transfer systems.

Technical Specifications

Chemical Composition

Mechanical Properties

Product Features

• Seamless Construction for Leak-Free Heat Transfer

Without longitudinal welds, seamless tubes provide consistent wall thickness and reliable performance under pressure.

• Precision U Bend Forming

Controlled bending minimizes wall thinning and ovality while maintaining dimensional consistency throughout the tube bundle.

• Low Carbon TP316L Material

The low carbon content improves resistance to intergranular corrosion after welding and fabrication.

• Optimized for Tube Bundle Assembly

Every U bend tube is manufactured according to customer drawings and TEMA requirements, ensuring smooth installation into tubesheets.

• Complete Traceability

Each production batch can be supplied with material identification, inspection records and EN10204 3.1 certification.

Available Dimensions

Applications

• Shell & Tube Heat Exchangers

• Surface Condensers

• Waste Heat Recovery Units

• Industrial Boilers

• Petrochemical Plants

• Fertilizer Plants

• Pharmaceutical Equipment

• Food Processing Systems

• Power Stations

• Offshore Heat Exchange Equipment

Inspection & Testing

• Chemical Analysis

• Mechanical Property Test

• Hydrostatic Test

• Eddy Current Test

• PMI Inspection

• Bend Radius Inspection

• Wall Thickness Measurement

• Visual Inspection

• Third-Party Inspection

Why Choose YUHONG U Bend Tubes

• Precision cold bending with controlled bend radius

• Solution annealed after bending

• Seamless construction for pressure applications

• Customized dimensions according to TEMA drawings

• Complete inspection documentation available

• Export packaging for long-distance transportation

Frequently Asked Questions

1. What is a TP316L U bend tube used for?

TP316L U bend tubes are mainly used in shell and tube heat exchangers, condensers and boiler tube bundles.

2. Why are seamless U bend tubes preferred?

Seamless tubes eliminate longitudinal welds, providing uniform strength and reducing potential leakage points.

3. Can the bend radius be customized?

Yes. Bend radius, straight leg length and overall dimensions can be manufactured according to customer drawings or TEMA requirements.

4. What inspection reports are available?

EN10204 3.1 MTC, hydrostatic testing, eddy current testing, PMI and dimensional inspection reports are available.

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U Bend Tube vs Straight Tube