Titanium Seamless Pipe & Tube – ASTM B861 / B338, Grade 1, 2, 3, 5, 7, 9 & 12
ASC LLP, Mumbai, is a titanium seamless pipes supplier and titanium alloy seamless pipe exporter. We supply commercially pure and alloy titanium pipe to ASTM B861 / ASME SB861 and seamless tube to ASTM B338 / ASME SB338, in Grade 1, 2, 3, 5, 7, 9 and 12 (DIN 3.7025, 3.7035, 3.7055, 3.7165, 3.7235, 3.7195, 3.7105), with EN 10204 3.1 certificates. See our full titanium product range.
Titanium Seamless Pipe – Quick Facts
- Pipe standard: ASTM B861 (seamless pipe); welded pipe to ASTM B862
- Tube standard: ASTM B338 (seamless and welded tube for heat exchangers and condensers)
- Grades: 1, 2, 3, 5, 7, 9, 11, 12
- Sizes: NPS ½” – 8″ in SCH 5S – 80S; tube 6 – 114 mm OD
- Condition: annealed, pickled
- Certificate: EN 10204 3.1; 3.2 / third-party inspection on request
What Are Titanium and Titanium Alloy Seamless Pipes?
Titanium seamless pipes are made from titanium billet that is extruded or pierced into a hollow, then cold-worked and vacuum-annealed to size, so the pipe has no weld seam. Commercially pure grades (1, 2, 3) are chosen for corrosion resistance. Palladium or Mo-Ni grades (7, 11, 12) are for reducing acids and hot chlorides. Alloy grades (5, 9) are for higher strength.
Seamless vs Welded Titanium Pipe
- ASTM B861 – seamless titanium and titanium-alloy pipe.
- ASTM B862 – welded titanium pipe; see titanium welded pipes.
- ASTM B338 – seamless and welded titanium tube for heat exchangers and condensers.
- ASTM B337 (older pipe standard) has been replaced by B861 and B862.
Titanium Seamless Pipes Specifications
| Item | Details |
| Product | Titanium and titanium-alloy seamless pipe and tube |
| Pipe standard | ASTM B861 / ASME SB861 |
| Tube standard | ASTM B338 / ASME SB338 |
| Grades | 1, 2, 3, 5, 7, 9, 11, 12 |
| Pipe sizes | NPS ½” – 8″ (21.3 – 219.1 mm OD), SCH 5S, 10S, 40S, 80S |
| Tube sizes | 6 – 114 mm OD, metric or inch walls; U-bends on request |
| Length | Single random, double random or cut length |
| Condition / finish | Annealed, pickled; polished on request |
| Testing | Chemical, tensile, flattening / flaring, hydrostatic or eddy current; PMI and UT on request |
Titanium Seamless Pipe Grades We Supply
| ASTM grade | UNS | DIN / W.Nr. | Type | Typical use |
| Grade 1 | R50250 | 3.7025 | CP titanium, softest | Linings, plate-heat-exchanger and formed parts |
| Grade 2 | R50400 | 3.7035 | CP titanium, standard | Seawater, chloride and chemical piping, condensers |
| Grade 3 | R50550 | 3.7055 | CP titanium, higher strength | Higher-pressure CP piping |
| Grade 5 | R56400 | 3.7165 | Ti-6Al-4V alloy | High-strength, high-pressure tubing |
| Grade 7 | R52400 | 3.7235 | Ti-0.15Pd | Hot chlorides, reducing acids (HCl, H₂SO₄) |
| Grade 9 | R56320 | 3.7195 | Ti-3Al-2.5V alloy | Hydraulic and high-pressure tubing |
| Grade 11 | R52250 | 3.7225 | Ti-0.15Pd (Grade 1 base) | Formed parts in reducing acids |
| Grade 12 | R53400 | 3.7105 | Ti-0.3Mo-0.8Ni | Lower-cost alternative to Grade 7 in hot brines |
Grade 2 is the standard choice for seawater and chemical piping. Grade 7 / 12 are used where Grade 2 would suffer crevice corrosion or attack by reducing acids. Grade 5 and 9 are used where strength matters more than formability.
ASTM B861 Titanium Pipe Sizes & Weights
| NPS | OD (mm) | SCH 5S (mm / kg/m) | SCH 10S (mm / kg/m) | SCH 40S (mm / kg/m) | SCH 80S (mm / kg/m) |
| ½” | 21.34 | 1.65 / 0.46 | 2.11 / 0.57 | 2.77 / 0.73 | 3.73 / 0.93 |
| ¾” | 26.67 | 1.65 / 0.58 | 2.11 / 0.73 | 2.87 / 0.97 | 3.91 / 1.26 |
| 1″ | 33.40 | 1.65 / 0.74 | 2.77 / 1.20 | 3.38 / 1.44 | 4.55 / 1.86 |
| 1½” | 48.26 | 1.65 / 1.09 | 2.77 / 1.79 | 3.68 / 2.32 | 5.08 / 3.11 |
| 2″ | 60.33 | 1.65 / 1.37 | 2.77 / 2.26 | 3.91 / 3.13 | 5.54 / 4.30 |
| 3″ | 88.90 | 2.11 / 2.59 | 3.05 / 3.71 | 5.49 / 6.49 | 7.62 / 8.78 |
| 4″ | 114.30 | 2.11 / 3.35 | 3.05 / 4.81 | 6.02 / 9.24 | 8.56 / 12.82 |
| 6″ | 168.28 | 2.77 / 6.50 | 3.40 / 7.94 | 7.11 / 16.24 | 10.97 / 24.45 |
| 8″ | 219.08 | 2.77 / 8.49 | 3.76 / 11.47 | 8.18 / 24.44 | 12.70 / 37.14 |
Wall thickness per ASME B36.19; weights calculated for Grade 2 at 4.51 g/cm³ (Grade 5: multiply by about 0.98).
Mechanical Properties – ASTM B861 / B338 (annealed, minimum)
| Grade | Tensile strength (min) | 0.2% yield strength (min) | Elongation (min) |
| Grade 1 / 11 | 240 MPa (35 ksi) | 138 MPa (20 ksi) | 24% |
| Grade 2 / 7 | 345 MPa (50 ksi) | 275 MPa (40 ksi) | 20% |
| Grade 3 | 450 MPa (65 ksi) | 380 MPa (55 ksi) | 18% |
| Grade 12 | 483 MPa (70 ksi) | 345 MPa (50 ksi) | 18% |
| Grade 9 (annealed) | 620 MPa (90 ksi) | 483 MPa (70 ksi) | 15% |
| Grade 5 | 895 MPa (130 ksi) | 828 MPa (120 ksi) | 10% |
ASTM B338 tube is used for heat exchangers and condensers in Grade 2, 7, 12 and others. See Grade 2, Grade 7 and Grade 12 B338 pipe pages for full grade data.
Chemical Composition of Titanium Pipe Grades (wt %)
| Grade | O max | Fe max | N max | C max | H max | Alloying |
| Grade 1 | 0.18 | 0.20 | 0.03 | 0.08 | 0.015 | – |
| Grade 2 | 0.25 | 0.30 | 0.03 | 0.08 | 0.015 | – |
| Grade 3 | 0.35 | 0.30 | 0.05 | 0.08 | 0.015 | – |
| Grade 5 | 0.20 | 0.40 | 0.05 | 0.08 | 0.015 | Al 5.5 – 6.75, V 3.5 – 4.5 |
| Grade 7 | 0.25 | 0.30 | 0.03 | 0.08 | 0.015 | Pd 0.12 – 0.25 |
| Grade 9 | 0.15 | 0.25 | 0.03 | 0.08 | 0.015 | Al 2.5 – 3.5, V 2.0 – 3.0 |
| Grade 12 | 0.25 | 0.30 | 0.03 | 0.08 | 0.015 | Mo 0.2 – 0.4, Ni 0.6 – 0.9 |
Titanium balance. Physical properties of Grade 2: density 4.51 g/cm³, melting point ≈ 1,665 °C, modulus ≈ 105 GPa.
Where Titanium Pipe Works – and Where It Doesn’t
Excellent Corrosion Resistance
A stable oxide film makes titanium practically immune to seawater, brine, wet chlorine, chlorine dioxide, hypochlorite and nitric acid, with no chloride stress-corrosion cracking.
High Strength-to-Weight Ratio
Titanium weighs about 57% as much as steel; Grade 2 has a strength similar to carbon steel pipe.
Limits
- Avoid: hydrofluoric acid and fluorides, dry chlorine gas, red fuming nitric acid.
- Use Grade 7 / 12 instead of Grade 2: hot reducing acids (HCl, H₂SO₄) and hot brines where crevice corrosion is a risk.
- Temperature: CP grades are normally used up to about 300 – 350 °C in pressure service.
Applications of Titanium Seamless Pipes
| Industry | Typical titanium seamless pipe uses |
| Chemical processing | Chlorine, chlorate and bleach plants, nitric acid lines, reactor piping |
| Marine & offshore | Seawater cooling and fire-water lines, offshore topside piping |
| Power generation | Condensers and seawater cooling systems (B338 tube) |
| Desalination | Brine heaters, evaporators and seawater intake lines |
| Oil & gas / refining | Overhead condensers, seawater cooling and sour-water service |
| Pulp & paper | Bleach-plant piping and washers |
Titanium Seamless Pipes Supplier & Exporter
We supply titanium seamless pipe and tube for domestic and export projects with full documentation, inspection support and export packing.
Related Titanium Pages
- B338 grade pipes: Grade 2, Grade 5, Grade 7, Grade 11, Grade 12
- Titanium welded pipes (ASTM B862)
- Titanium fittings and titanium flanges
- Titanium plates, titanium bars and titanium fasteners
- All titanium products
Why Choose Us for Titanium Seamless Pipes?
- Correct specification: pipe to ASTM B861 and tube to B338, certified by grade with UNS and DIN numbers.
- Full traceability: EN 10204 3.1 certificates with heat number, chemistry and tensile results; PMI and third-party inspection on request.
- Matched packages: pipe, fittings, flanges and fasteners in the same grade.
- Cut lengths and small quantities, plus export packing.
Send grade, NPS or OD × wall, schedule, length and quantity to sales@amardeepsteel.com or call 022-67439130.
Frequently Asked Questions – Titanium Seamless Pipe
Global Reach
As a trusted titanium seamless pipes supplier and titanium alloy seamless pipe exporter, ASC LLP delivers titanium piping to customers in the USA, Europe, the Middle East and Asia, including Japan, backed by complete quality documentation, material traceability and export support.
Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.
