Nitinol Rod boasts exceptional shape-memory performance, remarkable superelasticity, and robust corrosion resistance—attributes that position it as a highly versatile material for crafting both structural and functional components. Composed of nickel and titanium, （55% Nickel & 45%Titanium）this alloy can revert to a pre-set shape when heated, while simultaneously maintaining excellent fatigue resistance and biocompatibility. Such a unique combination of traits has led to its widespread adoption across diverse fields, including biomedical devices, aerospace systems, and robotics.
Its key application scenarios are extensive: it serves as a reliable material for surgical instruments, forms the core of deployable aerospace structures, and enhances the performance of high-end couplings. In the realm of scientific research, Nitinol Rod plays a pivotal role, supporting in-depth studies on thermomechanical cycling behaviors, techniques for extending fatigue life, and the shape-memory performance exhibited under varying stress conditions.
Notably, the rod form of this alloy delivers the essential rigidity and dimensional stability required for both prototyping processes and high-load service applications. This ensures that it achieves an optimal balance between mechanical strength and functional adaptability, even when deployed in the most demanding operating environments.
Parameters
| Item | Nitinol rod superelastic |
| composition content | 50-55% Nickel, 45-50% titanium |
| Diameter | 10-100mm |
| Length | 200-1000mm |
| Tensile strength | 800-1300MPa |
| Strain | 6%-8% |
| Elongation | 20%-40% |
Applications
1. Biomedical Field (Core Application Scenarios)
Leveraging biocompatibility and shape memory properties, it is used in: ① Orthopedic implants (bone nails, spinal rods, which can slightly deform with bone movement to promote healing); ② Cardiovascular devices (cardiac stents, which are cryogenically compressed and inserted through catheters, unfolding at body temperature to fit blood vessels); ③ Dental devices (orthodontic archwires, providing stable and gentle corrective force to reduce patient discomfort).
2. Aerospace and High-End Manufacturing
Utilizing its lightweight and high fatigue resistance advantages, it is used in: ① Aerospace components (aircraft landing gear shock absorbers, cockpit door locking mechanisms, reducing weight while improving shock resistance); ② Robotics (flexible gripper drive rods, bionic joints, enabling precise and gentle movements, suitable for grasping fragile items such as glass and electronic components); ③ Precision instruments (sensor elastic elements, temperature control valves, utilizing shape memory effects for temperature-triggered control).
3. Industrial and Everyday Applications
In typical industrial settings, it is used for: ① Vibration resistance and sealing components (pipe connectors, automotive shock absorbers, which absorb vibrations or compensate for thermal expansion and contraction through hyperelasticity); ② Consumer electronics (flexible brackets for smart wearable devices, image stabilization components for mobile phone cameras, combining thinness and flexibility).
Precautions for Use and Storage
The performance of nickel-titanium rods is easily affected by the environment and operation. Proper use and storage can ensure their performance stability:
1> Avoid prolonged exposure to high temperature and high humidity environments (such as high temperature or humid workshops ≥250℃) to prevent accelerated surface oxidation;
2> Medical-grade rods should be stored separately to avoid cross-contamination with industrial-grade products. Before storage, ensure the surface passivation layer is intact;
3> Avoid excessive cold working during processing (the single cold working rate is recommended not to exceed 20%) to prevent cracks or performance degradation;
4> Before use, check the batch material report to confirm that key parameters such as phase transformation temperature and tensile strength meet the requirements.
FAQ
1. What's the minimum order quantity (MOQ) for superelastic nitinol rods?
MOQ is 10 pieces for standard sizes; custom MOQs available for bulk orders.
2. Can you customize the diameter/length of the nitinol rods?
Yes, we offer customization for diameter (10–100mm) and length (100–1000mm) as per your needs.
3. What's the lead time for delivery?
Standard orders: 7–10 working days; custom orders: 25-30 working days.
4. Are the rods biocompatible for medical use?
Yes, our superelastic nitinol rods meet ISO 10993 standards, fully biocompatible for medical applications.
5. Do you provide samples before bulk purchase?
Yes, samples is ok to supply but not for free(shipping cost borne by buyer) are available upon request.
When you need nitinol rod superelastic, feer free to contact us, we are always here .