ASTM B338 Titanium Tube
ASTM B338 Titanium Tube 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 B338 / ASME SB338 as ordered
- Form
- Seamless or welded tube for condensers, evaporators and heat exchangers
- Documents
- MTC, heat traceability, dimensions and specified test reports
Product Detail
Product Introduction
ASTM B338 Titanium Tube 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.
When should ASTM B338 titanium tube be specified?
Selection answer: Use ASTM B338/B338M when the required product is seamless or welded titanium tube for a surface condenser, evaporator or heat exchanger. State the exact grade, manufacturing route, outside diameter, wall, length, condition and edition of the standard.
Selection boundary: Do not use ASTM B338 as a generic description for process pipe. ASTM B861 governs seamless pipe and ASTM B862 governs welded pipe; their dimensions, manufacturing routes and test obligations are different.
RFQ data to confirm: For quotation review, provide service fluid, temperature, pressure, grade, seamless or welded route, OD, wall, length, tube-end requirements, tubesheet or joining method, nondestructive examination, pressure test and certificate package.
Product Specifications
| Product | ASTM B338 Titanium Tube | Grade | Titanium Grade 1, Grade 2, Grade 7, Grade 9, Grade 12 or specified alloy |
|---|---|---|---|
| Standard | ASTM B338 / ASME SB338 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 |
Additional Supply & Ordering Details
Useful, technically consistent information consolidated from earlier product pages.
| Standard and end-use boundary | ASTM B338/B338M covers seamless and welded titanium tubes intended for surface condensers, evaporators and heat exchangers. It is not a generic substitute for ASTM B861 seamless pipe or ASTM B862 welded pipe. |
|---|---|
| Tube geometry to specify | State outside diameter, wall thickness, straight length, seamless or welded route, grade, condition, end finish, straightness and dimensional tolerances. Tube gauge or nominal size alone is insufficient. |
| Heat-transfer quality controls | Define eddy-current or other nondestructive examination, hydrostatic or pneumatic test when required, surface cleanliness, tube-end condition and any tighter OD/wall tolerance needed for tubesheet fit and expansion. |
| Equipment data for review | Provide service fluid, temperature, pressure, chloride and contaminant data, tubesheet material, joining or expansion method, cleaning regime and required documentation so grade and supply route can be reviewed. |
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
Surface condensers and evaporators
Material grade, dimensions, condition and inspection must be matched to the application requirements.
Shell-and-tube heat exchangers
Material grade, dimensions, condition and inspection must be matched to the application requirements.
Desalination and chemical-process equipment
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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