Yuhong Group Co.,Ltd
| Bend Radius | Customized According to TEMA or Customer Drawings |
| Delivery Time | Depends on quantity |
| Product Type | Seamless Stainless Steel U Bend Tube |
| Typical Equipment | Shell & Tube Heat Exchangers, Feedwater Heaters |
| Supply Ability | 1000 tons per month |
| Material Grade | ASTM A213 TP316L / UNS S31603 |
| Inspection & Testing | Hydrostatic Test, Eddy Current Test, PMI, Dimensional Inspection |
| Payment Terms | T/T & L/C at sight |
| Surface Condition | Annealed, Pickled or Bright Annealed |
| Manufacturing Process | Cold Drawn & Precision U Bending |
| Heat Treatment | Solution Annealed & Pickled |
| Packaging Details | Separated with wooden spacers, protected by PE film and packed in seaworthy plywood cases. |
| Model Number | A213 TP316L Seamless U Bend Tube |
| Brand Name | YUHONG |
| Certification | ISO, TUV, PED etc. |
| Place of Origin | China |
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Product Specification
| Bend Radius | Customized According to TEMA or Customer Drawings | Delivery Time | Depends on quantity |
| Product Type | Seamless Stainless Steel U Bend Tube | Typical Equipment | Shell & Tube Heat Exchangers, Feedwater Heaters |
| Supply Ability | 1000 tons per month | Material Grade | ASTM A213 TP316L / UNS S31603 |
| Inspection & Testing | Hydrostatic Test, Eddy Current Test, PMI, Dimensional Inspection | Payment Terms | T/T & L/C at sight |
| Surface Condition | Annealed, Pickled or Bright Annealed | Manufacturing Process | Cold Drawn & Precision U Bending |
| Heat Treatment | Solution Annealed & Pickled | Packaging Details | Separated with wooden spacers, protected by PE film and packed in seaworthy plywood cases. |
| Model Number | A213 TP316L Seamless U Bend Tube | Brand Name | YUHONG |
| Certification | ISO, TUV, PED etc. | Place of Origin | China |
| High Light | ASTM A213 TP316L seamless U bend tube ，U bend tube for shell heat exchangers ，TP316L heat exchanger tube with warranty | ||
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
|
Item |
Specification |
|---|---|
|
Product Name |
ASTM A213 TP316L Seamless U Bend Tube |
|
Standard |
ASTM A213 / ASME SA213 |
|
Material Grade |
TP316L / UNS S31603 |
|
Product Type |
Seamless U Bend Tube |
|
Manufacturing Process |
Cold Drawn + CNC U Bending |
|
Bend Radius |
Customized According to TEMA |
|
Outside Diameter |
12.7–50.8 mm |
|
Wall Thickness |
0.8–3.5 mm |
|
Tube Length |
Customized |
|
Surface Finish |
Annealed & Pickled |
|
Heat Treatment |
Solution Annealed After Bending |
|
Inspection |
Hydrostatic, Eddy Current, PMI |
|
Certificate |
EN10204 3.1 |
Chemical Composition
|
Element |
Content (%) |
|---|---|
|
Carbon |
≤0.030 |
|
Chromium |
16.0–18.0 |
|
Nickel |
10.0–14.0 |
|
Molybdenum |
2.0–3.0 |
|
Manganese |
≤2.00 |
|
Silicon |
≤1.00 |
|
Phosphorus |
≤0.045 |
|
Sulfur |
≤0.030 |
Mechanical Properties
|
Property |
Requirement |
|---|---|
|
Tensile Strength |
≥485 MPa |
|
Yield Strength |
≥170 MPa |
|
Elongation |
≥35% |
|
Hardness |
≤90 HRB |
Product Features
Without longitudinal welds, seamless tubes provide consistent wall thickness and reliable performance under pressure.
Controlled bending minimizes wall thinning and ovality while maintaining dimensional consistency throughout the tube bundle.
The low carbon content improves resistance to intergranular corrosion after welding and fabrication.
Every U bend tube is manufactured according to customer drawings and TEMA requirements, ensuring smooth installation into tubesheets.
Each production batch can be supplied with material identification, inspection records and EN10204 3.1 certification.
Available Dimensions
|
Parameter |
Range |
|---|---|
|
Outside Diameter |
12.7–50.8 mm |
|
Wall Thickness |
0.8–3.5 mm |
|
Straight Leg Length |
Customized |
|
Bend Radius |
Customized |
|
Tube Length |
According to Drawing |
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.
Related Products
ASTM A213 TP304 U Bend Tube
ASTM A213 TP321 Seamless U Tube
ASTM A213 TP347H U Bend Tube
ASTM A179 Carbon Steel U Bend Tube
ASTM B163 Monel 400 U Bend Tube
ASTM B338 Titanium Grade 2 U Bend Tube
U Bend Tube vs Straight Tube
|
Feature |
U Bend Tube |
Straight Tube |
|---|---|---|
|
Welded Joint Inside Bundle |
None |
Required in return section |
|
Heat Exchanger Design |
Preferred |
Standard |
|
Tube Bundle Assembly |
Simplified |
Additional connections may be required |
|
Leakage Risk |
Reduced |
Depends on joint design |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou... Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
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