Name: China Customized Superelastic Nitinol Tube Suppliers, Manufacturers, Factory - Wholesale Price - JMYUN
Brand: Jmyun
SKU: 159024612

Products Description

A superelastic nitinol tube is a metal tube with unique characteristics, mainly composed of nickel and titanium, usually 50.8% nickel and 49.2% titanium. This alloy is widely used in the medical field due to its superelasticity, biocompatibility and magnetic resonance compatibility, especially in the manufacture of endovascular stents ‌

Condition	Superelastic nitinol
UTS(σb MPa)	＞1000
Elongation(δ %)	≥10
Upper Plateau Stress	≥380
Permanet Set	≤0.5
Active Af(℃)	＜20
Transport Package	Carton, Wooden Case
Transit time	Stock is generally shipped within 7 days, custom sizes are generally shipped within 15 days

Tolerance range

Nominal OD or ID in mm (in.)	Permissible Variation from Nominal in mm (in.)
≤1.5(0.059)	±0.025(0.001)
≤6.5(0.256)	±0.050(0.002)
≤12(0.472)	±0.075(0.003)

nitinol pipe

Product display

Characteristics of Superelastic nitinol tube

1. Corrosion resistance

2. Anti-toxicity

Medical Superelastic nitinol tube has a special chemical composition, we should know when using it is actually a nickel-titanium alloy, containing about 50% nickel, and nickel is known to go wrong. In general, the oxidation of surface titanium acts as a barrier, making Nitinol alloy have good biocompatibility. TiXOy and TixNiOy can inhibit the release of nickel.

3, mild adjustment force

Currently, you can also see commercially used orthodontic wire, including austenitic stainless steel wire, cobalt-chromium-nickel wire, nickel-chromium wire, Australian alloy wire, gold alloy wire and titanium alloy wire. The load-displacement curves of these orthodontic wires are tested under three point bending and tensile conditions. And its no-load curve platform is very low, it can be seen that it can provide a very strong and soft correction force.

4, good shock absorption performance

Because the greater the vibration of the arch filaments caused by chewing and grinding at night, the greater the damage to the tooth roots. It is also very beneficial to study the results of various bow attenuation experiments. The results show that the amplitude of the stainless steel wire is greater than that of the superelastic nitinol wire. The amplitude of the superelastic nickel-titanium wire is only half that of the stainless steel wire. This material has good amplitude and shock absorption of the frontal arch wire, which is protective for the teeth. But stainless steel bow wire will have a bad effect on the root of the tooth

5, medical Superelastic nitinol alloy tube also has a superelastic characteristics to be used

The so-called superelasticity refers to the phenomenon that the strain of the specimen is greater than the elastic limit strain under the action of external force, and the strain energy automatically recovers when it is released. In other words, in the parent phase state, due to the effect of external stress, the stress-induced martensitic transformation will occur, so that the alloy exhibits mechanical behavior different from that of ordinary materials. Of course, the elastic limit of medical nitinol alloy tubes is greater than that of ordinary materials, and they no longer obey Hooke's law.

Comparison of basic physical and mechanical properties of Nitinol and 316L stainless steel

As a medical implant, the mechanical properties of Nitinol should be considered first. The basic physical and mechanical properties of Nitinol alloy and medical 316L stainless steel are compared, as shown in the chart. It can be seen from the chart that the density of Nitinol alloy is smaller than that of 316L stainless steel, the elastic modulus is similar to that of human bone, and even the recovery deformation capacity reaches 8%. Therefore, the stress shielding problem of implants is significantly reduced when Nitinol is used as raw material. This means that the implant does not need to absorb most of the external force during use, which favorably promotes the wide application of Nitinol in the human body.

Superelastic nitinol tube

Purchasing instructions

The purchase of superelastic Nitinol tubes needs to tell us the following information:

1. Length, wall thickness and outside diameter of nickel-titanium alloy tube
2, Whether it is used in medical or industrial fields, please inform us in detail
3. What is the phase change temperature of the pipe?
4. Is the tube superelastic or memory alloy?