

Nitinol wire is widely used in medical devices, aerospace components, robotics, and industrial applications due to its high strength, lightweight nature, and biocompatibility. Medical-grade Nitinol wire is commonly found in stents, guidewires, and orthodontic archwires, while industrial applications use it in smart actuators, sensors, and adaptive structures.
With its ability to withstand high strain levels without permanent deformation, Nitinol wire has revolutionized industries that require materials with high fatigue resistance and flexibility.
Our Expertise:
SMA WIRES INDIA is a leading manufacturer of custom Nitinol wire, offering solutions tailored to specific applications.
Custom Product Development:
🔹 Custom diameters & mechanical properties
🔹 Precision cutting & shape setting
🔹 Prototype Development & Mass Production
Applications:
🔹 Medical Devices – Stents, guidewires, dental arch wires, etc.
🔹 Aerospace & Defense – Smart actuators and morphing structures
🔹 Robotics & Automation – Shape memory actuators
Diameter and Tolerances
Diameter (mm) | Tolerances (mm) |
4.000-2.000mm | ±0.020mm |
2.000-1.000mm | ±0.020mm |
1.000-0.350mm | ±0.012mm |
0.350-0.260mm | ±0.009mm |
0.260-0.150mm | ±0.008mm |
0.150-0.080mm | ±0.007mm |
0.080-0.050mm | ±0.005mm |
0.050-0.013mm | ±0.002mm |
0.013–0.090mm | ±0.002mm |
0-090–0.010mm | ±0.002mm |
NOTE :- Tighter Tolerance Available On Request.
Mechanical Properties
Alloy code | UTS σ_b Mpa | Elongation δ% | UPS σ_load Mpa | Permanent Set After 6% Strain % | Active A_f °C |
A | >=1300 | >=10 | >=480 | <0.5 | 10±7° C |
B | >=1150 | >=10 | >=440 | <0.5 | 17±7° C |
C | >=1000 | >=10 | >=400 | <0.5 | 25±5° C |
D | >=950 | >=10 | >=300 | <0.5 | 35±5° C |
E | >=550 | >=15 | >=200 | <0.5 | 35±8° C TO 110±8° C |
NOTE :- All Mechanical Testing Conducted at 22°C +/- 2°C
Surface condition
- Black surface oxidation
- Light oxidation (golden to brown)
- Etched surface
- Electropolishing surface (EP)
- Grinding surface
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