What are the Properties of Nitinol Straight Wire?

Nitinol, an alloy of nickel and titanium, exhibits unique properties that set it apart from other materials. One of its most notable features is its ability to return to a predetermined shape when heated above a certain temperature, a property known as shape memory. Additionally, Nitinol demonstrates superelasticity, allowing it to undergo significant deformation and return to its original shape upon unloading.

 

Nitinol Straight Wire – Product Introduction

Nitinol straight wires are a high-performance alloy composed of nickel and titanium. They are renowned for their unique shape memory effect, super elasticity, and excellent mechanical properties. This material combines strength, flexibility, and biocompatibility, making it widely used in both medical and industrial fields.

Product Properties & Advantages

1. Shape Memory Effect

Nitinol straight wire can recover its pre-set original shape when heated above its phase transformation temperature.This characteristic enables precise shape control and stable performance in complex working environments.

2. Superelasticity

At temperatures above its transformation point, Nitinol wire can withstand large deformation and automatically return to its original shape after unloading, without permanent bending or damage.It has outstanding resilience and flexibility far beyond ordinary metal wires.

3. High Mechanical Strength & Durability

Tensile strength: 800–1900 MPa

Excellent fatigue resistance, stable under repeated bending and loading

High durability even under long-term cyclic stress

4. Excellent Biocompatibility & Corrosion Resistance

High biocompatibility, safe for human implantation

Strong corrosion resistance in body fluids and harsh environments

Stable performance, long service life, no adverse reactions

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Main Applications

1. Medical Devices

Vascular stents: Compressed for minimally invasive insertion, expands automatically at body temperature

Orthopedic devices: Bone anchors, orthopaedic braces, spinal correction systems

Minimally invasive surgical instruments: Guidewires, catheters, grasping devices

2. Dental & Orthodontic Applications

Orthodontic archwires for braces

Provides consistent, gentle force for comfortable and efficient tooth alignment

Better performance and patient experience than traditional stainless steel wires

3. Industrial & Mechanical Fields

Actuators, sensors, precision components

Robotics, aerospace, and consumer electronics

Any application requiring flexibility, shape recovery, and high reliability

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Conclusion

Nitinol straight wire possess characteristics such as shape memory, super elasticity, high strength and biocompatibility, which are superior to stainless steel and other traditional materials. It is the preferred material for high-precision, long-life and minimally invasive surgical applications. With the continuous advancement of technology, its application scope will continue to expand, providing support for the innovation of medical equipment and high-end manufacturing industries.

 

Contact us

Baoji Hanz Metal Material Co., Ltd.
Gaoxin Avenue, BaoJi city, ShaanXi province China
Tel: 86-917-3258886
Fax: 86-917-3258889
Mobile, whatsapp，wechat: +86 18091719909
Email:baojihanz-niti@hanztech.cn