ASTM B338 Titanium and Titanium Alloy Tube
- Type: Seamless and welded
- Application: Condenser and Heat Exchanger
- Grade 2, CP Ti-2, W.Nr 3.7025, AFNOR T35, BS 2TA1, GOST VT1-0 (ВТ1-0)
- Grade 5, Ti-6Al-4V, W.Nr 3.7165, AFNOR T-A6V, BS TA10-13, GOST BT6 (VT6)
- Grade 7, Ti-0.2Pd, W.Nr 3.7235, BS TA9
- Grade 9, Ti-3Al-2.5V, GOST 3B
- Grade 12, Ti-0.3Mo-0.8Ni, W.Nr 3.7105
Features
ASTM B338 Seamless and Welded Titanium and Titanium Alloy Tubes for Condensers and Heat Exchangers
Chemical Composition (wt. %) of ASTM B338 Titanium and Titanium Alloy Tube
| Grade | N (max) | C (max) | H (max) | Fe (max) | O (max) | Al | V | Pd | Mo | Ni | Ti |
| 2 | 0.03 | 0.08 | 0.015 | 0.30 | 0.25 | – | – | – | – | – | Balance |
| 5 | 0.05 | 0.08 | 0.015 | 0.40 | 0.20 | 5.50-6.75 | 3.5-4.5 | – | – | – | Balance |
| 7 | 0.03 | 0.08 | 0.015 | 0.30 | 0.25 | – | – | 0.12-0.25 | – | – | Balance |
| 9 | 0.03 | 0.08 | 0.015 | 0.25 | 0.15 | 2.50-3.50 | 2.0-3.0 | – | – | – | Balance |
| 12 | 0.03 | 0.08 | 0.015 | 0.30 | 0.25 | – | – | – | 0.2-0.4 | 0.6-0.9 | Balance |
Mechanical Properties of ASTM B338 Titanium and Titanium Alloy Tube
| Grade | Tensile Strength (min, ksi [MPa]) | Yield Strength (0.2% Offset, min, ksi [MPa]) | Elongation in 2 in. or 50 mm (min, %) |
| 2 | 50 [345] | 40 [275] | 20 |
| 5 | 130 [895] | 120 [828] | 10 |
| 7 | 50 [345] | 40 [275] | 20 |
| 9 | 90 [620] | 70 [483] | 15 |
| 12 | 70 [483] | 50 [345] | 18 |
ASTM B338/ASME SB338 Titanium and Titanium Alloy Boiler, Heat Exchanger and Condenser Tubes Dimension Chart
Technical Specifications
| Specification | Value |
| Standard | ASTM B338 Titanium and Titanium Alloy Tube |
| Grade | Grade 2, Grade 5, Grade 7, Grade 9, Grade 12 |
| Seam Type | Seamless and Welded |
| O.D. | 9.53 – 88.9mm (3/8″ – 3 1/2″) |
| W.T. | 0.5 – 10mm (0.020″-0.394″) |
| Length | 3000 – 12000mm |
| Density | 4.51 g/cm3 |
| Shapes of Tube | Straight Tubes, U-Tubes, Tube Coils |
| Inspection Certificate | EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection) |
| Tests | Chemical Analysis, Tensile Test ASTM E8/E8M, Flattening Test ASTM A370, Flaring Test, NDE Test (ET/UT/EMT/HT) |
Packing
Straight or plain ends with plastic caps, bundled and covered with seaworthy bags, or packed in plywood crates.
Application
Heat exchangers: Grade 2 titanium tube resistance to corrosion from various chemicals, including chlorides and acids, makes it perfect for heat exchangers in chemical processing plants.
Pressure vessels: Titanium tubing’s high strength and corrosion resistance make them ideal for pressure vessels used in chemical processing and storage.
Piping systems: Titanium tube offers excellent resistance to pitting and crevice corrosion, making them reliable for transporting corrosive chemicals.
Marine applications: Grade 5 titanium tube’s resistance to seawater corrosion makes it suitable for marine applications like shipbuilding, desalination plants, and offshore structures.
Power generation: Due to their corrosion resistance and high strength, ASTM B338 titanium tubes are used in power plants for condenser tubing and other applications.
Sports equipment: Grade 9 titanium tube’s lightweight and high strength make it ideal for high-performance sports equipment, such as bicycle frames and golf clubs.
