Titanium Threaded Fittings
Titanium threaded fittings supplied as couplings, unions, elbows, tees, plugs and drawing-specific forms by grade, NPS, thread, service and inspection requirements.
- Material
- Titanium Grade 2, Grade 7 or Grade 12 as specified
- Product Standard
- ASME B16.52 for covered titanium forged threaded fittings; approved order controls
- Dimensions
- ASME B16.52 and ASME B1.20.1 NPT, or approved drawing
- Documents
- MTC, dimensions and heat/lot traceability
Product Detail
Product Introduction
Titanium threaded fittings provide detachable or compact connections in corrosion-resistant piping systems. Product type must be stated explicitly because a coupling, union, elbow, tee, plug and nipple perform different functions. A complete order defines grade, configuration, NPS at every end, thread designation and gaging, pressure and temperature basis, service medium, sealing and inspection.
Product Specifications
| Product | Titanium Threaded Fittings | Material Options | Titanium Grade 2, Grade 7 or Grade 12 as specified |
|---|---|---|---|
| Forms | Coupling, reducing coupling, union, elbow, tee, plug or drawing-specific threaded fitting | Typical Inquiry Range | NPS 1/8 to 4 typical inquiry range; size at every run, branch and end must be stated |
| Product Standard | ASME B16.52 for covered titanium forged threaded fittings; approved order controls | Dimensional Basis | ASME B16.52 and ASME B1.20.1 NPT, or the expressly specified thread standard |
| Wall | Schedule or nominal wall thickness matched to the connected pipe and design | Ends | Female or male NPT typical; BSPT/BSPP or drawing-specific threads only when expressly ordered |
| Manufacturing | Seamless, welded, formed, forged, machined or fabricated as specified | Surface | Pickled, cleaned, machined or project-specific finish |
| Inspection | Visual, dimensions, wall, ends and specified NDT | Documents | MTC, heat/lot traceability and inspection report |
Typical ranges are quotation guidance, not a stock guarantee. Final availability and tolerances are confirmed against the complete RFQ and design code.
Selection and Configuration
- Product function: Choose the exact fitting form according to flow direction, branch, reduction, disassembly and spacing requirements.
- Complete end definition: State NPS, gender and thread designation at every end, including different run or branch sizes.
- Service and assembly: Define pressure, temperature, medium, sealing method, compatible mating parts and anti-galling procedure.
Send the piping specification or drawing
Include grade, NPS or OD, wall/schedule, geometry, ends, quantity, tests and documents.
Chemical Composition
Weight percent; maximum unless a range is shown. Titanium is the balance. The ordered grade controls.
| Grade / UNS | Pd | Mo / Ni | Fe | O | C | N | H | Ti |
|---|---|---|---|---|---|---|---|---|
| Grade 2 / R50400 | — | — | 0.30 | 0.25 | 0.08 | 0.03 | 0.015 | Balance |
| Grade 7 / R52400 | 0.12–0.25 Pd | — | 0.30 | 0.25 | 0.08 | 0.03 | 0.015 | Balance |
| Grade 12 / R53400 | — | 0.20–0.40 Mo; 0.60–0.90 Ni | 0.30 | 0.25 | 0.08 | 0.03 | 0.015 | Balance |
Mechanical Properties – Annealed Source Material Reference
| Grade | Ultimate Tensile Strength min | 0.2% Yield Strength min | Elongation min |
|---|---|---|---|
| Grade 2 | 345 MPa (50 ksi) | 275 MPa (40 ksi) | 20% |
| Grade 7 | 345 MPa (50 ksi) | 275 MPa (40 ksi) | 20% |
| Grade 12 | 483 MPa (70 ksi) | 345 MPa (50 ksi) | 18% |
Representative wrought-source material minima. Fitting acceptance, heat treatment and test specimens must follow the ordered material/product specification and size.
Typical Physical Properties
| Grade | Density | Elastic Modulus | Thermal Conductivity | Thermal Expansion |
|---|---|---|---|---|
| Grade 2 | 4.51 g/cm³ | Approx. 105 GPa | Approx. 16.4 W/m·K | Approx. 8.6 µm/m·K |
| Grade 7 | Approx. 4.51 g/cm³ | Approx. 105 GPa | Approx. 16 W/m·K | Approx. 8.6 µm/m·K |
| Grade 12 | Approx. 4.54 g/cm³ | Approx. 103 GPa | Approx. 16 W/m·K | Approx. 8.6 µm/m·K |
Typical engineering references, not inspection acceptance limits.
Certificates & Inspection Records
Services We Can Provide
Product Packaging
Fittings are capped or wrapped to protect clean ends, bevels, threads and machined faces. Items are separated by grade, size and heat/lot, then packed in reinforced cartons or export cases according to geometry and quantity.
Application Scenarios
Chemical Processing
Corrosion-resistant piping for acids, chlorides and process media after grade compatibility review.
Power & Energy
Cooling-water, condenser and auxiliary piping requiring traceable titanium components.
Marine & Desalination
Seawater and chloride-bearing piping systems designed for the selected titanium grade.
FAQ
What information is required to quote Titanium Threaded Fittings?
Provide the titanium grade, product form, dimensional standard or drawing, thread or critical dimensions, quantity, surface treatment, mating parts, service conditions and required inspection documents.
Which standards apply to Titanium Threaded Fittings?
ASME B16.52 applies to covered titanium and titanium-alloy forged threaded fittings. ASME B1.20.1 may define NPT threads when invoked. Special dimensions, threads and counterbores require an approved order or drawing. The piping designer remains responsible for the complete pressure-design basis.
How are Titanium Threaded Fittings inspected?
Review MTC and heat/lot traceability; verify product form, size at each end, thread form and gaging, engagement, bore alignment, sealing surfaces, cleanliness and any specified pressure or leak test.
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