Titanium Threaded Flange
Titanium Threaded Flange supplied by grade, material standard, nominal size, pressure class, facing, bore, bolt pattern, connection details, inspection and documentation.
- Grades
- Grade 2, Grade 5, Grade 7, Grade 12 or specified grade
- Material
- ASTM B381 / ASME SB381 as applicable
- Dimensions
- ASME B16.5 or approved EN/DIN/JIS/customer drawing
- Documents
- MTC, dimensions and heat/lot traceability
Product Detail
Product Introduction
Titanium Threaded Flange is a forged and machined titanium piping component identified by its internally threaded hub for a specified pipe thread. Material grade, dimensional standard, nominal size, pressure class, facing, mating component and service conditions must be reviewed together.
When is a titanium threaded flange appropriate?
Selection answer: A threaded flange connects to compatible threaded pipe without a flange-to-pipe butt weld and may be considered where the piping design and service permit a threaded joint.
Selection boundary: Threaded joints are not automatically suitable for cyclic, high-temperature, crevice-sensitive or leak-critical service. Define the thread form and engagement, sealing method, pipe schedule, pressure class and code limitations rather than relying on NPS alone.
RFQ data to confirm: Provide grade, NPS, class, facing, thread standard and designation, pipe schedule, sealant or sealing method, service pressure and temperature, medium, quantity, inspection and certificates.
Product Specifications
| Product | Titanium Threaded Flange | Grade | Titanium Grade 2, Grade 5, Grade 7, Grade 12 or specified alloy |
|---|---|---|---|
| Standard | ASTM B381 / ASME SB381 may govern titanium-alloy forgings; ASME B16.5 or an approved EN, DIN, JIS or project standard may govern dimensions, pressure class and facing. The applicable piping code and project specification control selection and rating. | Size & Form | NPS/DN and Class/PN according to the specified dimensional standard or customer drawing |
| Tolerance | Applicable material/dimensional standard and order-defined bore, hub, facing, bolt circle, hole and connection tolerances | Supply Condition | Forged and machined with protected sealing faces, individual identification and reinforced export-case packing |
| Inspection | MTC and heat traceability, PMI when specified, nominal size and pressure class, OD and thickness, bore and connection geometry, bolt circle and holes, facing and surface finish, visual inspection and supplementary NDE when required. | Documents | MTC, heat/lot traceability and agreed inspection reports |
Additional Supply & Ordering Details
Useful, technically consistent information consolidated from earlier product pages.
| Connection function | A threaded flange connects without a socket or butt weld at the flange. Thread form, engagement and sealing method must match the piping design and service limitations. |
|---|---|
| Critical dimensions | State NPS, class, facing, dimensional standard, thread standard and designation, taper or parallel form, thread gauge acceptance, bore, face finish and grade. |
| Service boundary | Review temperature cycling, vibration, crevice conditions, galling, sealant compatibility and code restrictions before selecting a threaded titanium joint. |
| Inspection focus | Gauge the internal thread, inspect crest and root damage, verify thread axis, engagement and bore, and inspect facing, bolt drilling, marking and traceability. |
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 2 / R50400 | — | 0.30 | 0.25 | 0.08 | 0.03 | 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 7 / R52400 | Pd 0.12–0.25 | 0.30 | 0.25 | 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 |
Mechanical Properties – Annealed Material Reference
| Grade | Ultimate Tensile Strength min | 0.2% Yield Strength min | Elongation min |
|---|---|---|---|
| Grade 2 | 345 MPa | 275 MPa | 20% |
| Grade 5 | 895 MPa | 828 MPa | 10% |
| Grade 7 | 345 MPa | 275 MPa | 20% |
| Grade 12 | 483 MPa | 345 MPa | 18% |
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 2 | 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 7 | Approx. 4.51 g/cm³ | Approx. 105 GPa | Approx. 8.6 µm/m·K |
| Grade 12 | Approx. 4.54 g/cm³ | Approx. 103 GPa | Approx. 8.6 µm/m·K |
Typical engineering references, not inspection acceptance limits.
Certificates & Inspection Records
Services We Can Provide
Product Packaging
Machined faces, bores and bevels are protected with covers or wrapping. Flanges are separated by grade, size and heat, then secured in reinforced export cases with traceability labels. Typical export packaging for the same physical product form is shown below; final packing is confirmed for each order.
Application Scenarios
Non-welded threaded connections only where the governing piping specification permits them
Material grade, dimensions, condition and inspection must be matched to the application requirements.
Chemical processing and corrosion-resistant piping
Material grade, dimensions, condition and inspection must be matched to the application requirements.
Marine, desalination and industrial equipment connections
Material grade, dimensions, condition and inspection must be matched to the application requirements.
FAQ
Does ASTM B381 define flange pressure class and dimensions?
No. ASTM B381 primarily covers titanium forgings. State the separate dimensional standard, size, class or PN, facing and project requirements.
Which titanium grade should be selected?
Grade selection depends on service chemistry, temperature, strength, mating materials, fabrication and the governing project specification.
What information is required for quotation?
Provide grade, material and dimensional standards, size, class/PN, facing, bore or connection details, quantity, NDE and certificates.
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