Description
xGrade 2 Titanium Tube: 25-300mm Medium-Diameter Tubing
Medium-diameter Grade 2 titanium tube for industrial piping, thermal and corrosion-service systems. Available from 25.0 to 300.0 mm outside diameter with a 0.5–10.0 mm wall range, supplied seamless or welded, fully annealed and cut to fixed lengths with deburred or beveled ends ready for welding and installation.
What Is Grade 2 Titanium Tube?
Grade 2 titanium tube is made from commercially pure titanium and is the most widely used titanium tubing for general industrial service. In the 25–300 mm range it replaces heavier ordinary metal pipe in corrosive circuits, combining dependable strength with high ductility. It resists seawater, chlorides, brine and oxidizing media, stays non-magnetic, and weighs roughly 56% of steel at 4.51 g/cm³ — an advantage for large-bore process lines, exchanger bundles and marine systems.
Key Features
Corrosion Resistance in Aggressive Media
Withstands seawater, brine, chlorides and oxidizing chemicals for long service in desalination, chemical and marine circuits.
Lightweight Large Bore
At 4.51 g/cm³, 25–300 mm assemblies weigh far less than steel pipe, easing supports, handling and installation.
Strong, Ductile Wall Range
Walls from 0.5 to 10 mm balance pressure capability with the formability needed for bends, reducers and welded spools.
Non-Magnetic and Biocompatible
Suited to sanitary, pharmaceutical, food-processing and sensitive instrument environments.
Excellent Weldability
Clean TIG and plasma welding, weld preparation and beveled ends support spool, flange and fitting fabrication.
Low Lifecycle Cost
Long corrosion life reduces replacement frequency and unplanned downtime in continuous-process plants.
Manufacturing and Quality Control
Seamless Construction
Seamless medium-diameter Grade 2 titanium tube is cold drawn or extruded and finished for a uniform structure and smooth bore. It is selected at the smaller end of the 25–300 mm range for high-pressure, high-purity or critical fluid circuits where a longitudinal weld is not desired.
Welded Construction
Most medium to large diameters are produced as welded tube: strip is roll-formed and joined with a longitudinal TIG or plasma weld, then cold-worked and fully annealed. The weld bead is controlled and finished for a smooth profile, delivering consistent wall thickness and economical supply across diameters up to 300 mm and 10 mm walls.
Condition, Finish and Inspection
Annealed Condition
Every length is fully annealed to relieve forming stress and deliver stable, predictable behavior in bending, welding and installation.
Surface Finishes
Pickled and annealed, mechanically polished or bright finishes are available, including sanitary finishes for food and pharmaceutical lines.
Weld, Pressure and Lot Inspection
Nondestructive Weld Testing
Longitudinal welds are examined by eddy-current, ultrasonic or radiographic inspection to confirm weld soundness along the full length.
Hydrostatic and Pneumatic Testing
Each length can be hydrostatically pressure tested, with pneumatic leak testing available for specified welded spools.
Batch Documentation
Heat and lot records, chemical and mechanical test results and an EN 10204 3.1 mill test certificate are available for every batch.
Technical Specifications
Dimensional Range
| Material | Grade 2 commercially pure titanium |
|---|---|
| Applicable standards | ASTM B338 / ASME SB-338; ASTM B337 / ASME SB-337 |
| Outside diameter | 25.0–300.0 mm |
| Wall thickness | 0.5–10.0 mm; custom gauges available |
| Construction | Seamless; longitudinal welded and cold-worked |
| Condition | Annealed (bright annealed available) |
| Length | Fixed lengths cut to order; straight supply |
| Ends | Deburred, square-cut or beveled for welding |
| Surface | Pickled and annealed / polished / bright / sanitary |
| Certification | EN 10204 3.1 mill test certificate |
For finer 3–25 mm lines, see our 3–25 mm precision titanium tubing. For automotive builds, see our titanium exhaust tubing for downpipes and headers. Browse all Grade 2 titanium tubing.
Mechanical and Physical Properties
| Tensile strength | ≥ 345 MPa (50 ksi) |
|---|---|
| Yield strength, 0.2% offset | ≥ 275 MPa (40 ksi) |
| Elongation | ≥ 20% |
| Hardness | 80 HRB max |
| Density | 4.51 g/cm³ |
| Melting point | approx. 1665 °C |
| Modulus of elasticity | approx. 105 GPa |
| Thermal conductivity | approx. 16.4 W/(m·K) |
| Thermal expansion coefficient | approx. 8.6 µm/(m·°C) |
Available Forms
Straight Fixed-Length Tube and Pipe
Fixed straight lengths cut to your required dimension, ready for spool fabrication or direct installation.
Seamless or Welded Supply
Choose seamless for critical pressure and purity, or welded for economical medium and large diameters with walls to 10 mm.
Fabricated Sections and Welded Assemblies
Bent sections, reducers, beveled ends, flanged lengths and welded sub-assemblies produced directly from drawing.
Applications
Heat Exchangers, Condensers and Power Generation
Medium-bore ASTM B338 Grade 2 titanium tube is used in shell-and-tube heat exchangers, power-plant condensers, oil coolers and thermal circuits handling seawater or aggressive coolants.
Chemical Processing, Desalination and Water Treatment
Corrosion-service process lines, brine and chlor-alkali circuits, desalination plants, electroplating lines and water-treatment systems rely on Grade 2 titanium pipe for continuous operation.
Marine, Offshore and Seawater Systems
Seawater cooling, ballast and fire-water lines, offshore platform piping and shipboard systems benefit from titanium’s resistance to saltwater corrosion and marine fouling.
Marine Exhaust and Process Venting
Medium and large diameters serve marine exhaust stacks, process venting and hot corrosive-gas ducting on ships, platforms and process plants. For automotive performance exhaust, downpipes and headers, see our titanium exhaust tubing.
Food, Pharmaceutical and Sanitary Processing
Polished, non-magnetic and biocompatible tubing supports sanitary process lines, CIP circuits and pharmaceutical and food production where contamination must be avoided.
Aerospace Ducting and Process Piping
The range also serves aerospace ducting, process piping, valve and pump connections, and structural tubular fabrications requiring corrosion resistance at large diameters.
Value-Added Fabrication
- Fixed-length cutting with square or beveled weld ends
- CNC and roll bending for large-radius curves
- Flaring, expanding, reducing and swaging transitions
- Weld preparation, beveling and flange welding
- Drilling, punching and manifold fabrication
- Mechanical, sanitary and bright polishing
- Protective packaging and export marking for international delivery
Why Choose RapidKeen Grade 2 Titanium Tube
- One source for 25–300 mm medium to large diameters, walls 0.5–10 mm
- Seamless and welded supply from a single supplier
- Consistent annealed condition and weld quality on every batch
- Heat and lot traceability with EN 10204 3.1 documentation
- Prototype spools through production volumes
- Export-ready paperwork and protective packaging
Frequently Asked Questions
Should medium-diameter Grade 2 titanium tube be seamless or welded?
Seamless tube is chosen for critical pressure, high-purity or smaller-diameter circuits. Welded tube is the economical, standard solution for most 25–300 mm process and thermal lines; welds are fully annealed and nondestructively examined.
What is the largest diameter and wall thickness available?
The standard range runs from 25.0 to 300.0 mm outside diameter with walls from 0.5 to 10.0 mm. Larger sizes, special gauges and fixed lengths can be produced to order.
Can the tube be supplied bent, beveled or with welded flanges?
Yes. Lengths can be cut, beveled for welding, roll or CNC bent, flared or reduced, and supplied with welded flanges or as finished sub-assemblies from drawing.
Shipping & Return
xReturns Policy
You may return items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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