Application of Titanium Capillary Tube Grade 1

Titanium Capillary Tube Grade 1 is widely used across multiple industries due to its exceptional corrosion resistance, biocompatibility, light weight, and excellent formability. Its extremely small inner diameter allows precise fluid control, making it ideal for sensitive and high-precision systems.

1. Refrigeration

Titanium Grade 1 capillary tubes are used in refrigerators, freezers, HVAC systems, and air conditioners to accurately regulate the flow of refrigerant.
As the refrigerant passes through the thin tube, it expands and cools efficiently, contributing to stable temperature control.

2. Medical

Titanium seamless capillary tubes are widely used in medical laboratories, diagnostics, and microfluidic devices.
Applications include:

Blood collection and analysis

Catheters and guide wires

Precision delivery of biological fluids

Titanium’s biocompatibility makes it safe for instruments in direct contact with the human body.

3. Chemical Analysis

Titanium capillary tubes are used in:

Gas chromatography

Separation of chemical components

High-temperature and corrosive analytical systems

Different compounds pass through the tube at varying speeds, enabling accurate separation and identification.

4. Manufacturing & Industrial Use

Titanium capillary tubes ensure precise flow control of oil, water, acids, and industrial process fluids.
Common uses:

Micro-fluid dosing

Instrumentation and control lines

Sampling lines for industrial analysers

Descriptions of Titanium Capillary Tube Grade 1

Titanium Capillary Tube Grade 1 is made from commercially pure titanium, offering:

Excellent corrosion resistance

High ductility

Lightweight and non-magnetic performance

Outstanding biocompatibility

Good thermal conductivity

These tubes are produced in various diameters and wall thicknesses, customised to meet the requirements of:

Medical instruments

Aerospace precision systems

Automotive sensors and fuel lines

Electronic components

Heat exchanger and condenser tubing

Titanium capillary tubes can be manufactured using cold rolling, hot rolling, extrusion, or precision drawing, depending on size and application.
They are then cut, polished, and bent to the required shape for final use.

Material Variants

Medical-grade titanium capillary tubes are typically available in:

Grade 1 – highest ductility

Grade 2 – stronger, similar corrosion resistance

Grade 5 (Ti-6Al-4V) – higher strength, used for surgical implants

ASTM B861 specifications can also be applied when required.

Chemical Composition & Mechanical Properties

Mechanical Properties

Chemical Composition (wt%)

Advantages of Titanium Capillary Tube Grade 1

Ultra-lightweight and ideal for aerospace & medical applications

Non-magnetic—safe for MRI and sensitive electronic devices

Exceptional corrosion resistance in seawater, chlorine, acids, and industrial chemicals

High biocompatibility—ideal for implants, surgical instruments, and medical devices

High strength-to-weight ratio

Low thermal expansion and stable at varying temperatures

Excellent surface finish, suitable for precise fabrication and welding

Available in custom sizes, shapes, coils, and straight lengths