ASTM B861 Titanium Seamless Pipe
ASTM B861 Titanium Seamless Pipe supplied by grade, governing specification, dimensions, manufacturing route, condition, testing and traceability requirements.
- Grades
- Grade 1, Grade 2, Grade 7, Grade 9, Grade 12 or specified alloy
- Standard
- ASTM B861 / ASME SB861 as ordered
- Form
- Seamless titanium and titanium-alloy pipe for corrosion-resistant or elevated-temperature service
- Documents
- MTC, heat traceability, dimensions and specified test reports
Product Detail
Product Introduction
ASTM B861 Titanium Seamless Pipe is purchased by an exact tube or pipe specification and project datasheet. Tube and pipe are not interchangeable descriptions: the RFQ must state the product form, grade, dimensions, manufacturing route, condition, service and acceptance tests.
Product Specifications
| Product | ASTM B861 Titanium Seamless Pipe | Grade | Titanium Grade 1, Grade 2, Grade 7, Grade 9, Grade 12 or specified alloy |
|---|---|---|---|
| Standard | ASTM B861 / ASME SB861 as ordered applies only where its scope covers the ordered form. B338 is a condenser and heat-exchanger tube specification; B861 covers seamless pipe; B862 covers welded pipe. Do not substitute one solely because the alloy grade is the same. | Size & Form | Order-defined OD or NPS, wall/schedule, straight length, U-bend geometry or coil dimensions |
| Tolerance | Applicable standard plus order-defined diameter, wall, length, straightness, end, bend or coil tolerances | Supply Condition | Seamless, welded, cold worked, annealed, straight length, U-bent or coiled as expressly ordered |
| Inspection | Material-certificate and heat-identity review, chemistry and mechanical properties, OD or NPS, wall and length, surface and ends, straightness or coil/bend geometry, plus pressure, eddy-current, ultrasonic or supplementary testing when ordered. | Documents | MTC, heat/lot traceability and agreed inspection reports |
Send the complete material RFQ
Include grade, specification revision, dimensions, tolerance, quantity, condition, tests and destination.
Chemical Composition
Weight percent; maximum unless a range is shown. Titanium is the balance. The ordered specification and grade control.
| Grade / UNS | Principal Alloying Elements | Fe max | O max | C max | N max | H max | Ti |
|---|---|---|---|---|---|---|---|
| Grade 1 / R50250 | — | 0.20 | 0.18 | 0.08 | 0.03 | 0.015 | Balance |
| Grade 2 / R50400 | — | 0.30 | 0.25 | 0.08 | 0.03 | 0.015 | Balance |
| Grade 3 / R50550 | — | 0.30 | 0.35 | 0.08 | 0.05 | 0.015 | Balance |
| Grade 4 / R50700 | — | 0.50 | 0.40 | 0.08 | 0.05 | 0.015 | Balance |
| Grade 5 / R56400 | Al 5.50–6.75; V 3.50–4.50 | 0.40 | 0.20 | 0.08 | 0.05 | 0.015 | Balance |
| Grade 6 / R54520 | Al 4.00–6.00; Sn 2.00–3.00 | 0.50 | 0.20 | 0.08 | 0.05 | 0.015 | Balance |
| Grade 7 / R52400 | Pd 0.12–0.25 | 0.30 | 0.25 | 0.08 | 0.03 | 0.015 | Balance |
| Grade 9 / R56320 | Al 2.50–3.50; V 2.00–3.00 | 0.25 | 0.15 | 0.08 | 0.03 | 0.015 | Balance |
| Grade 12 / R53400 | Mo 0.20–0.40; Ni 0.60–0.90 | 0.30 | 0.25 | 0.08 | 0.03 | 0.015 | Balance |
| Grade 11 / R52250 | Pd 0.12–0.25 | 0.20 | 0.18 | 0.08 | 0.03 | 0.0125 | Balance |
| Grade 16 / R52402 | Pd 0.04–0.08 | 0.30 | 0.25 | 0.08 | 0.03 | 0.015 | Balance |
| Grade 17 / R52252 | Pd 0.04–0.08 | 0.20 | 0.18 | 0.08 | 0.03 | 0.0125 | Balance |
| Grade 19 / R58640 | Al 3.00–4.00; V 7.50–8.50; Cr 5.50–6.50; Mo 3.50–4.50; Zr 3.50–4.50 | 0.30 | 0.12 | 0.05 | 0.03 | 0.015 | Balance |
| Grade 23 / R56407 | Al 5.50–6.50; V 3.50–4.50 | 0.25 | 0.13 | 0.08 | 0.05 | 0.0125 | Balance |
Mechanical Properties – Annealed Material Reference
| Grade | Ultimate Tensile Strength min | 0.2% Yield Strength min | Elongation min |
|---|---|---|---|
| Grade 1 | 240 MPa | 170 MPa | 24% |
| Grade 2 | 345 MPa | 275 MPa | 20% |
| Grade 3 | 450 MPa | 380 MPa | 18% |
| Grade 4 | 550 MPa | 483 MPa | 15% |
| Grade 5 | 895 MPa | 828 MPa | 10% |
| Grade 6 | 828 MPa | 793 MPa | 10% |
| Grade 7 | 345 MPa | 275 MPa | 20% |
| Grade 9 | 620 MPa | 485 MPa | 15% |
| Grade 12 | 483 MPa | 345 MPa | 18% |
| Grade 11 | 240 MPa | 170 MPa | 24% |
| Grade 16 | 345 MPa | 275 MPa | 20% |
| Grade 17 | 240 MPa | 170 MPa | 24% |
| Grade 19 / Beta-C | Acceptance depends on solution treatment, aging condition, product form and section size; use the certified values required by the invoked product or aerospace specification. | ||
| Grade 23 | 860 MPa | 795 MPa | 10% |
Representative minima only. Product form, section size, heat treatment and the invoked specification determine the certified acceptance values.
Typical Physical Properties
| Grade | Density | Elastic Modulus | Thermal Expansion |
|---|---|---|---|
| Grade 1 | 4.51 g/cm³ | Approx. 103 GPa | Approx. 8.6 µm/m·K |
| Grade 2 | 4.51 g/cm³ | Approx. 105 GPa | Approx. 8.6 µm/m·K |
| Grade 3 | 4.51 g/cm³ | Approx. 105 GPa | Approx. 8.6 µm/m·K |
| Grade 4 | 4.51 g/cm³ | Approx. 105 GPa | Approx. 8.6 µm/m·K |
| Grade 5 | 4.43 g/cm³ | Approx. 114 GPa | Approx. 8.6 µm/m·K |
| Grade 6 | Approx. 4.48 g/cm³ | Approx. 110 GPa | Approx. 8.8 µm/m·K |
| Grade 7 | Approx. 4.51 g/cm³ | Approx. 105 GPa | Approx. 8.6 µm/m·K |
| Grade 9 | Approx. 4.48 g/cm³ | Approx. 105 GPa | Approx. 9.0 µm/m·K |
| Grade 12 | Approx. 4.54 g/cm³ | Approx. 103 GPa | Approx. 8.6 µm/m·K |
| Grade 11 | Approx. 4.51 g/cm³ | Approx. 103 GPa | Approx. 8.6 µm/m·K |
| Grade 16 | Approx. 4.51 g/cm³ | Approx. 105 GPa | Approx. 8.6 µm/m·K |
| Grade 17 | Approx. 4.51 g/cm³ | Approx. 103 GPa | Approx. 8.6 µm/m·K |
| Grade 19 / Beta-C | Approx. 4.82 g/cm³ | Condition-dependent; use certified engineering data | Condition-dependent; verify for design |
| Grade 23 | 4.43 g/cm³ | Approx. 114 GPa | Approx. 8.6 µm/m·K |
Typical engineering references, not inspection acceptance limits.
Certificates & Inspection Records
Services We Can Provide
Product Packaging
Pipe and tube ends are capped, surfaces are wrapped where required, and bundles or export cases are identified by grade, size, heat and quantity. Typical export packaging for the same physical product form is shown below; final packing is confirmed for each order.
Application Scenarios
Chemical-process piping
Material grade, dimensions, condition and inspection must be matched to the application requirements.
Marine and seawater systems
Material grade, dimensions, condition and inspection must be matched to the application requirements.
Corrosion-resistant industrial pipework
Material grade, dimensions, condition and inspection must be matched to the application requirements.
FAQ
Is titanium tube the same as titanium pipe?
No. Tube is generally ordered by OD and wall for heat-transfer or precision service; pipe is generally ordered by pipe size and wall/schedule. The governing specification and dimensions must be stated.
Can seamless and welded material be substituted?
Only with purchaser approval after confirming the governing standard, size range, service, design code, fabrication route and required inspection.
What information is needed for quotation?
Provide grade, standard/revision, dimensions, quantity, route, condition, ends, service, tests, cleanliness and document requirements.
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Related Technical Guides
Titanium Pipe Specifications: B338, B861 and B862
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