Nitinol Alloy Tube – Shape Memory Tube for Medical Use
Our nitinol tube combines shape memory and superelastic performance in one advanced material. Known as a smart alloy, it can recover its original form after deformation or heating. This makes it highly suitable for medical applications, especially stents and catheter-based devices.
Material Features
The nitinol tube is made from a near-equal mix of nickel and titanium. This composition creates two key advantages. First, superelasticity allows the tube to flex without damage. Second, shape memory enables it to return to a programmed shape at body temperature.
In addition, the material meets medical-grade requirements. It offers low nickel release, strong corrosion resistance, and stable long-term performance.
| Onside dimensions(in) | Wall thickness(in) | Tolerance range(in) | Length(in) |
| 0.0079 | 0.0008 | ±0.0005 | ＞0.0.02 |
| 0.01 | 0.001 | ±0.0005 | ＞0.0.02 |
| 0.011 | 0.0015 | ±0.0005 | ＞0.0.02 |
| 0.014 | 0.00135 | ±0.0005 | ＞0.0.02 |
| 0.075 | 0.0025 | ±0.0005 | ＞0.0.02 |
Production Process
We produce each nitinol tube using a controlled process. High-purity metals are vacuum melted to ensure cleanliness. The alloy is then formed into a tube through extrusion.
Next, we apply cold drawing to achieve precise dimensions. Heat treatment between stages enhances flexibility and sets the memory effect. Finally, the tube is cleaned, cut, and polished to create a smooth inner and outer surface.
FAQ – Nitinol Alloy Tube
What is a nitinol tube?
A nitinol alloy tube is a nickel-titanium tube with shape memory and superelastic properties.
What are the main uses of nitinol tube?
It is mainly used in medical devices such as stents, catheters, and guidewires.
Why is nitinol alloy tube used for stents?
Because it expands at body temperature and maintains its shape under pressure.
Can nitinol tube be customized?
Yes, we offer custom sizes, wall thickness, and surface finishes.
Is the nitinol tube safe for medical use?
Yes, it meets medical-grade standards with low nickel release and high corrosion resistance.
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