Titanium Capillary Tube
Titanium capillary tube supplied in straight or coiled form by grade, OD, ID or wall, bore cleanliness, tolerance, surface, length and inspection requirements.
- Material
- Grade 2 or order-specified titanium
- Specification
- ASTM B338, ASTM B861 or customer drawing as applicable
- Form
- Straight small-bore tube or coil
- Control
- OD, ID/wall, bore, straightness and cleanliness
Product Detail
Product Introduction
Titanium capillary tube is precision small-bore tubing used where flow passage, wall consistency, cleanliness and forming condition matter. The exact product specification depends on dimensions, manufacturing route and application, so every order should identify OD, ID or wall and acceptance method.
Product Specifications
| Product | Titanium Capillary Tube | Grade | Commercially pure titanium Grade 2 or specified alloy |
|---|---|---|---|
| Standard | ASTM B338 or ASTM B861 may apply depending on tube form, grade, dimensions and intended service. Very small or special capillary sizes are often controlled by an approved drawing and supplementary inspection requirements. | Size & Form | Small-bore straight lengths or coils; OD, ID/wall, length and coil dimensions by RFQ |
| Tolerance | Drawing or applicable product-standard OD, ID/wall, ovality, straightness and bore requirements | Supply Condition | Annealed or order-defined condition, clean straight lengths or coils with protected and capped ends |
| Inspection | Material certificate, OD and ID or wall checks, bore or plug-gauge verification, ovality, straightness or coil dimensions, surface and bore cleanliness, end inspection and traceability. | 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 2 / R50400 | — | 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% |
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 |
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.
Application Scenarios
Instrumentation and sampling lines
Material grade, dimensions, condition and inspection must be matched to the application requirements.
Precision fluid and gas handling
Material grade, dimensions, condition and inspection must be matched to the application requirements.
Chemical, laboratory and specialty equipment
Material grade, dimensions, condition and inspection must be matched to the application requirements.
FAQ
How is capillary tube size specified?
Use OD plus ID or wall thickness, with tolerances and a bore acceptance method. A nominal trade name alone is not sufficient.
Can titanium capillary tube be supplied in coils?
Yes for suitable dimensions and conditions. State coil ID/OD, length, annealed condition, ovality and end-protection requirements.
Why must bore cleanliness be specified?
Residue and particles can affect small passages, so cleanliness method, capping and acceptance should be defined for sensitive service.
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