Titanium Reducing Flange
Titanium Reducing Flange supplied by titanium grade, material and dimensional standards, nominal sizes, class, facing, bore or tapping geometry, inspection and documentation.
- Grades
- Grade 2, Grade 5, Grade 7, Grade 12 or specified grade
- Configuration
- Flange connection with a smaller line-side bore or hub transition
- Standards
- ASME B16.5 where applicable plus approved reducing-bore drawing; ASTM B381 / ASME SB381 material
- Documents
- MTC, heat traceability and agreed dimensional/NDE records
Product Detail
Product Introduction
Titanium Reducing Flange is a drawing- and standard-controlled titanium piping component. A complete order identifies titanium grade and source-material specification separately from flange dimensions, pressure class, facing, mating components, flange size, reduced line size, bore transition, hub, facing and pressure class, service conditions and inspection.
Product Specifications
| Product | Titanium Reducing Flange | Grade | Titanium Grade 2, Grade 5, Grade 7, Grade 12 or specified alloy |
|---|---|---|---|
| Standard | ASME B16.5 where applicable plus approved reducing-bore drawing; ASTM B381 / ASME SB381 material. The applicable piping code, project specification and approved drawing control design, rating and acceptance. | Size & Form | NPS/DN and Class/PN with configuration-specific dimensions according to the invoked standard or approved drawing |
| Tolerance | Order-defined bore, hub, facing, bolt circle, holes, taps, length and transition tolerances | Supply Condition | Forged and machined with protected sealing faces, permanent identification and reinforced export-case packing |
| Inspection | MTC and heat traceability, PMI when specified, nominal sizes and class, OD and thickness, bore and hub, bolt circle and holes, facing and finish, special tapping or transition geometry, visual examination and supplementary NDE. | 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 reducing flange connects a larger flange size or bolt pattern to a smaller flow bore. The reduced bore, transition and piping arrangement require explicit design review. |
|---|---|
| Critical dimensions | State flange NPS and class, reduced bore or mating pipe size, facing, dimensional or drawing standard, transition geometry, hub or socket details, bolt drilling and grade. |
| Flow and fabrication boundary | Review pressure drop, erosion, dead legs, bore alignment, weld end or socket fit and code compliance. A standard flange with an undersized bore is not automatically an approved reducer. |
| Inspection focus | Inspect both nominal and reduced dimensions, transition profile, bore alignment, facing, bolt drilling, thickness, surface, 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
Chemical-process and instrumentation piping
Material grade, dimensions, condition and inspection must be matched to the application requirements.
Energy and pressure-equipment connections
Material grade, dimensions, condition and inspection must be matched to the application requirements.
Marine, desalination and industrial systems
Material grade, dimensions, condition and inspection must be matched to the application requirements.
FAQ
Does ASTM B381 define the flange dimensions?
No. ASTM B381 primarily covers titanium forgings. The order must separately identify the dimensional standard, class, facing and special geometry.
Can the flange be ordered from a generic sketch?
Critical pressure-boundary and connection geometry requires a controlled standard or approved drawing with revision and inspection requirements.
What should be included in the RFQ?
Provide grade, material and dimensional standards, sizes, class/PN, facing, bore, special geometry, quantity, service, NDE and certificates.
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