Our Titanium U Tubes are precision-bent seamless titanium tubes designed for heat exchangers and condenser systems. Manufactured from ASTM B338 / B861 compliant titanium, these U-bend tubes offer excellent corrosion resistance, especially in seawater, chemical, and power generation applications.
Each tube undergoes stress-relief heat treatment after U-bending to prevent cracking and improve service life. Our production supports custom bending radius, tight dimensional tolerances, and various titanium grades, including commercially pure and alloyed types.
Standards & Certifications
ASTM B338 / ASTM B861 (Titanium seamless tube) , ASME / EN10204 3.1 Mill Test Certificate
NDT: Eddy Current Test, Hydrostatic Test, PMI , ISO 9001 certified factory
|
Tube Outer Diameter |
12.7 mm-38 mm (Custom sizes) |
|
Wall Thickness |
0.5 mm-2.0 mm |
|
Tube Length (Straight Leg) |
Up to 12 meters before bending |
|
U Bend Radius |
As per client drawing or ASME/EN standard |
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Bending Tolerance |
±1.5 mm (custom tolerances available) |
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Surface Finish |
Inside & Outside Pickled / Polished / Bright Annealed (BA);ID Cleaning: ≥Grade B per ASTM B338;Deburred ends |
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All tubes undergo stress-relief annealing after U-bending. |
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Tolerances
Unless otherwise specified, dimensions comply with the following tolerances:
|
Parameter |
Tolerance |
|
Outside Diameter |
±0.25 mm (OD ≤ 25 mm), ±0.5 mm (OD > 25 mm) |
|
Wall Thickness |
±10% or as per ASTM B338 |
|
Leg Length |
±1.5 mm / 1000 mm |
|
U Bending Radius |
±1.0 mm |
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Ovality |
≤ 5% |
|
Surface Finish |
Clean, smooth, no oxidation or cracks |
Additional tolerance requirements can be customized based on customer specifications or drawing.
Our Titanium U Tubes are manufactured under strict process control to ensure superior dimensional accuracy, corrosion resistance, and mechanical performance. Below is an overview of our standard production workflow:
Raw Material Inspection
Use of premium quality Titanium seamless tubes, sourced and tested as per ASTM B338 / B861 standards.
Full chemical composition analysis (PMI test) is conducted on each batch.
Cutting & Straightening
Tubes are cut to required lengths based on customer specifications.
Straightening ensures uniformity and facilitates accurate bending.
U Bending
Tubes are bent using CNC-controlled U-bending machines.
Minimum bending radius: 1.5D or per customer drawing.
Internal mandrel used to avoid ovality and wall thinning.
Stress Relief Heat Treatment
All U-bent tubes undergo heat treatment (stress relieving) to restore mechanical properties and eliminate residual stress.
Process is controlled and documented for each batch.
Dimensional Inspection
Leg length, bend radius, and straightness are verified with calibrated measuring tools.
Ovality, wall thinning, and surface finish are strictly checked.
Non-Destructive Testing (NDT)
Eddy current testing or ultrasonic testing ensures the integrity of the tube body.
Hydrostatic pressure test available upon request.
Cleaning & Final Surface Treatment
Tubes are pickled, polished, or passivated based on client needs.
Ends are cleaned, capped, and dried to prevent contamination.
Marking & Packing
Each tube is laser-etched or stamped with heat number and grade.
Export packaging in plywood cases with soft padding and separators.
Packing list + material certificate included with each shipment.
Heat exchangers (shell & tube type)
Condensers
Seawater desalination units(Desalination plants)
Petrochemical and chemical processing
Marine and offshore systems(Power plants)
Pharmaceutical and food industries
All Titanium U Tubes undergo strict inspection to ensure performance and reliability:
Visual & Dimensional Check
Hydrostatic Testing (upon request)
Eddy Current Test or Ultrasonic Testing (UT)
Material Test Certificates (MTC) as per EN 10204 3.1 / 3.2
Chemical Composition Analysis
Mechanical Properties Test
Bending and Surface Finish Inspection
We ensure full traceability and quality compliance with ASTM B338 / ASTM B861 / ASME SB338, and other applicable standards.
To ensure the safety and quality of your Titanium U Tubes during transportation and storage, we apply professional export-grade packaging methods
Standard Packing Details
Packing Type
Export-grade plywood cases or fumigation-free wooden crates
with protective plastic film and anti-shock cushioning materials.
Tube Protection
Both ends are sealed with plastic caps to prevent contamination.
Tubes are individually wrapped or bundled using foam layers or bubble sheets to avoid surface scratches or deformation.
Crate Dimensions
Custom-designed based on tube length and U-bend radius.
Labeling
Each case is labeled with: Product description, Grade & size, Heat number & batch number, Quantity, Destination country or port.
Loading & Delivery
Container Loading: Carefully loaded and fixed with wooden blocks and straps to prevent movement. Suitable for both LCL and FCL shipments.
+86-731-82224155
8613272400394
enquiry@jetvisiontitanium.com
