Nitinol Wire

At SIZEN, we are a leading manufacturer of premium Nitinol wire, available in both superelastic and shape memory grades to meet the diverse needs of our customers. Our Nitinol wire is produced in compliance with ASTM F2063 standards, ensuring consistent quality and performance.

Widely used in critical applications such as medical devices, aerospace, and industrial sectors, our Nitinol wire offers exceptional flexibility, durability, and precision. Choose from a variety of surface finishes include light oxide, black oxide, and oxide-free to match your specific requirements.

Need reliable Nitinol wire solutions? Contact us today to discuss your project needs or request a quote.

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Nitinol Wire Information

  • Material: Titanium Nickel Alloy
  • Standards: ASTM F2063
  • Grades: Superelastic, Shape Memory
  • Density: 6.45 g/cm³
  • Melting Point: 1310 °C
  • Transformation Temperature: -20°C to 100°C

Nitinol Wire Types & Properties

Effect Alloy Transformation Temperature Range (°C) Recovery Strain (%) Thermal Hysteresis (°C) Durability (cycle)
Shape Memory Ni-TiNi-Ti-Fe 0-70 °C 1% 2-3 °C >1,000,000
Ni-Ti-Cu 50-80 °C 5-6% 10-15 °C 10,000-50,000
Ni-Ti -10-100 °C 6-8% 20-40 °C <100
Effect Alloy Transformation Temperature Range (°C) High Super Elastic Stress (Mpa) Thermal Hysteresis (Mpa) Features
Superelastic Ni-TiNi-Ti-Fe -40-50 °C 300-600 Mpa 240-420 Mpa Long life/good workability
Ni-TiNi-Ti-Co 500-850 Mpa High super elastic stress
Ni-Ti-Cu-Cr 280-580 Mpa 95-300 Mpa Low stress hysteresis

Nitinol Wire Size & Tolerance

Wire Form Diameter Tolerance
Nitinol Round Wire 0.020-0.050 ±0.0020
0.051-0.080 ±0.0030
0.081-0.150 ±0.0040
0.151-0.260 ±0.0050
0.261-0.350 ±0.0070
0.351-1.000 ±0.010
1.001-2.000 ±0.010
2.001-4.000 ±0.020
Wire Form Thickness Thickness Tolerance Width Width Tolerance
Nitinol Flat Wire 0.013-0.05 mm ±0.005 mm 0.045-0.1 mm ±0.01
0.051-0.80 mm ±0.1 mm 0.101-2.5 mm ±0.1
  • Quality Materials

    High purity nickel and titanium

    Customized Solutions

    Tailored for specific project needs.

    Precision Manufacturing

    Uniform thickness, reliable use.

    Exceptional Flexibility

    Up to 8% Strain Without Bending

    Expert Support

    Professional guidance readily available.

5 MAIN REASONS TO CHOOSE US

High-Quality Materials

We use top-quality materials that undergo strict third-party testing. This ensures the correct chemical composition, consistent transformation temperature, and reliable performance.

Customized Solutions

We offer a variety of wire sizes, grades, and surface finishes to meet the specific needs of your projects, ensuring the right solution every time.

Precision Manufacturing

Our Nitinol wires are made using advanced diamond drawing dies, ensuring a smooth, uniform surface finish and consistent quality throughout.

Exceptional Flexibility

After proper heat treatment, our Nitinol wire can stretch up to 8% at body temperature without bending. This makes it highly flexible and durable, perfect for use in medical devices and other critical applications.

Expert Support

Our team of specialists is here to provide expert advice and practical solutions, helping you choose the best options tailored to your needs for optimal results and satisfaction.

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Shape Memory Effect

Nitinol wire "remembers" its original shape. When heated above a certain temperature, it returns to its pre-set form, making it ideal for applications like medical devices where precise movement is needed.

Superelasticity

Titanium doesn't easily corrode, even in harsh environments. This is why it's a great choice for marine, chemical processing, and industrial applications where materials are often exposed to corrosive substances.

Corrosion Resistance

Nitinol naturally resists corrosion, even in harsh environments like the human body or industrial settings. This ensures long-lasting performance and fewer replacements.

Biocompatibility

Nitinol is highly biocompatible, meaning it is safe to use in medical devices like stents, guidewires, and braces. It is gentle on the body, reducing the risk of rejection or irritation.

Wide Temperature Range

Nitinol performs well in both extreme cold and heat, making it suitable for applications in cryogenics or high-temperature systems.

Fatigue Resistance

Nitinol is resistant to wear and tear. It can handle repeated stress and movement without losing its shape, ensuring reliable performance over time in devices like implants or actuators.

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Medical

Nitinol wire is widely used in the medical field due to its shape memory and superelastic properties. It's commonly found in products such as stents, guidewires, surgical tools, and orthodontic devices. These properties allow Nitinol to adapt to the body's temperature and provide reliable performance in critical medical procedures.

Aerospace

The aerospace industry benefits from Nitinol wire's lightweight and high-strength characteristics. It's used in actuators, deployable structures, and other components that require both flexibility and durability in extreme temperature conditions.

Automotive

Nitinol wire is used in automotive applications like fuel control valves, actuators, and sensors. Its ability to withstand harsh environments and provide precise movement makes it an excellent choice for modern automotive systems that require high performance and reliability.

Eyewear

Thanks to its superelasticity, Nitinol wire is commonly used in eyewear frames. It allows glasses to retain their shape even after bending, making them more durable and long-lasting.

Robotics & Actuators

Nitinol wire's shape memory effect and superelasticity make it ideal for robotics, where precise movement and flexibility are essential. It is used in actuators that require compact, reliable, and efficient performance, especially in miniature robotic systems.

Thermal Devices

Nitinol wire is used in thermal actuators, which rely on its ability to change shape with temperature fluctuations. These devices are used in a variety of applications, from temperature sensors to thermal valves, where precise temperature control is required.

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What is the difference between shape memory and superelastic Nitinol wire?

  • Shape Memory: This property allows the wire to "remember" its original shape. It changes shape when heated above its transformation temperature and returns to its pre-set form when heated.
  • Superelasticity: This allows the wire to undergo large elastic deformations within a narrow temperature range, then return to its original shape without any permanent deformation.

What is the transformation temperature of Nitinol wire?

Nitinol wire typically has a transformation temperature ranging from -20°C to 100°C, depending on the specific alloy and grade. This means it can perform well in both low and high-temperature environments.

How flexible is Nitinol wire?

Nitinol wire is highly flexible, and after heat treatment, it can stretch up to 8% at body temperature without permanent bending. This makes it ideal for applications requiring both flexibility and durability, such as in medical stents or eyeglass frames.

What is the surface finish of Nitinol wire?

Nitinol wire can be produced with various surface finishes to meet specific application needs. Common finishes include:

  • Clean (Oxide-free): For applications requiring a smooth, clean surface.
  • Light Oxidation: For a gold or brownish color, which can be used in medical devices or as a visual marker.
  • Black Oxidation: Often used for aesthetic purposes or in applications requiring additional corrosion resistance.

Can you provide customized Nitinol wire for specific applications?

Yes, we specialize in providing customized Nitinol wire solutions. Whether you need specific diameters, grades, or surface finishes, we can tailor the wire to meet your exact requirements. We also offer precise control over the transformation temperature range and can produce wire to match your desired performance specifications.

What standards does SIZEN's Nitinol wire meet?

SIZEN's Nitinol wire meets ASTM F2063 standards for medical-grade applications, ensuring reliable performance and consistency.

What are the typical compositions of Nitinol?

Nitinol typically consists of approximately 55-60% nickel and 40-45% titanium. The exact composition can vary based on the desired properties and applications.

What are some limitations of using Nitinol wire?

Limitations include:

  • Cost: Nitinol can be more expensive than traditional metals.
  • Processing Difficulty: Its unique properties make it challenging to machine or manipulate.
  • Temperature Sensitivity: Precise control over temperature is necessary for optimal performance.

What is the lead time for ordering nitinol wires?

The lead time for nitinol wires varies depending on the order quantity and customization requirements. Typically, you can expect a lead time of 3-5 weeks.

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