Nitinol Wire
Nitinol wire is a nickel-titanium (NiTi) alloy wire prized for two defining properties (superelasticity and shape memory) that let it flex, recover, and return to a set shape. Resonetics draws superelastic, medical-grade nitinol wire with tightly controlled composition and thermo-mechanical processing to deliver fatigue and kink resistance, and biocompatibility for demanding device geometries.
This production begins with the highest quality ingot, which is first drawn into coil and then carefully reduced to the desired wire diameters through a controlled drawing process.
Nitinol Wire Applications
Nitinol’s mechanical properties include excellent corrosion resistance, fatigue performance, and exceptional elasticity. These characteristics make our nitinol wire suitable for many medical device applications, including:
- Stents
- Catheters
- Endodontic files
- Mandrels
- Baskets
- Surgical instruments
- Orthopedic instruments
- Snares
- Guidewires
Nitinol Wire Finishes
- Soft oxide (light)
- Hard oxide (dark)
- Amber oxide
- Etched (oxide-free)
- Pickled
- Etched and mechanically polished (oxide-free polished)
Nitinol Wire Specifications
| MIN | MAX | ||
|---|---|---|---|
| Round wire | 0.076 mm [0.003 in] | 2.286 mm [0.090 in] | Dependent on finish |
| Centerless ground bar | 2.286 mm [0.090 in] | 6.35 mm [0.250 in] | |
| Flat wire thickness | 0.2 mm [0.0007 in] | 0.5 mm [0.0020 in] | |
| Flat wire width | 0.05 mm [0.0021 in] | 1.5 mm [0.060 in] | |
| Flat wire ratio | 3:1 | 6:1 | |
| Turkshead | 0.45 mm x 0.45 mm [0.017 in x 0.017 in] | 1.5 mm x 1.5 mm [0.059 in x 0.059 in] | |
| Turkshead ratio | 1:1 | 2:1 |
| MIN | MAX | |
|---|---|---|
Related Resources
ARTICLES
July 24, 2025
Resonetics Celebrates 35 Years of Consistent Nitinol Melting and Processing
Resonetics has grown into a vertically integrated manufacturer of nitinol-based components for the entire MedTech market. Originally featured in Orthopedic…
Read More