Titanium Tubes for Heat Exchangers
Copper-nickel gave up; stainless pitted. Titanium Gr2 tubes resist chloride pitting in seawater at velocities and temperatures that destroy conventional condenser alloys — which is why shipboard condensers, evaporators and brine heaters increasingly specify ASTM B338 titanium tube.
Typical Specification (as ordered)
| Parameter | Typical band |
|---|---|
| Grade | Gr1 / Gr2 (B338); Gr12 for hot brine |
| OD | 20 – 60 mm (e.g. 25.4 mm) |
| Wall | 0.6 – 3.0 mm |
| Length | up to 8000 mm, cut + tolerance per your drawing |
| Condition | annealed, pickled, ends plugged |
| Docs | MTC per lot; NDT record where tested |
Values are the common order band, not a limit: other OD/wall combinations within our tube line are quotable. Testing (hydrostatic or eddy current) is performed at the production base to the standard you buy.
Three Sub-Cases We Quote
Copy-Paste RFQ Template
Grade: Gr2 (ASTM B338)
Tube: OD ___ mm × wall ___ mm × length ___ mm (qty ___ pcs)
Tolerance: OD ±___ % · wall ±___ mm · length +___ / -0 mm
Testing: hydrostatic / eddy current (standard: ___)
Ends: plain / polished · Packing: bundle + plugs
Destination port: ___ · Required documents: MTC EN 10204 3.1
Tube: OD ___ mm × wall ___ mm × length ___ mm (qty ___ pcs)
Tolerance: OD ±___ % · wall ±___ mm · length +___ / -0 mm
Testing: hydrostatic / eddy current (standard: ___)
Ends: plain / polished · Packing: bundle + plugs
Destination port: ___ · Required documents: MTC EN 10204 3.1
FAQ
What length tolerance can you hold on 6 m tubes?
Cut-length tolerance follows the ordered standard; state +/− per tube-sheet drilling and we confirm at quote.
Do you supply tubes pre-bent?
Bending is outside drawn-tube scope — we ship straight lengths. U-bundle conversion is a fabricator process.
Is eddy-current testing standard?
It is per the ordered standard/practice; specify which test you require and it is arranged at the production base.