Nitinol wire
Nickel Titanium (NiTi) alloy wire, commonly known as Nitinol, is a unique material renowned for its remarkable properties, including shape memory and superelasticity. This alloy is composed primarily of nickel and titanium, typically in nearly equal atomic proportions, which gives rise to its distinctive characteristics:
1.Shape Memory Effect;
2.Superelasticity;
3.Biocompatibility;
4.Corrosion Resistance;
5.Thermal Responsiveness;
6.Versatility.
Application:
* Heat engines
* Resilient glass frames
* Orthodontic arc wire
* Medical devices
* Actuators
* High reliability couplings
* Temperature control system couplings
Specification:
Alloy | Chemical composition | Af(fully annealed) | Min. elongation to failure [%] | Max. Residual elongation after 6% strain [%] | Main Applications | ||||
Superelastic Ni-Ti alloy | TiNi-SS | Ti-50.8at% | -5°C ± 5°C. | 10 | 0.1 | Eyeglass Frames, Cellular Phone Antennae, Bra Underwire | |||
TN3 TNC | TiNiVAl TiNiCr | -40°C ~50°C | 10 | 0.1 | |||||
Body temperature Ni-Ti alloy | TiNi-YY | Ti-50.7at%Ni | Functional(Af=33±3) | 15 | 0.1 | Implantable devices, Bone staples Vascular Stents | |||
Ti-Ni-01 | 55.6~55.8 wt%Ni | 20-40 | 15 | 0.1 | Guide wires, Stents Orthodontic Arches | ||||
High temperature Ni-Ti alloy | Ti-Ni-02 | 54.8~55.5wt%Ni | 45 – 95 | 10 | 0.1 | Implantable active devices, Surgical tools, Thermostats Coffeepots | |||
Alloy code | F | G | I | J | H |
Main composition mass%Ni | 44.0Ti 55.8Ni 0.2Cr | 44.0Ti 55.2Ni 0.8Cr | 50.0Ti 45.0Ni 5.0Cu | 50.0Ti 49.7Ni 0.3V | 47.0Ni 44.0Ti 9.0Nb |
*Active Af after heat treatment, °C | Similar to binary Nitinol D with higher strength | Similar to ternary NiTi0.2Cr with higher strength | 42+/-5 | -32+/-6 | 142+/-10 |