

Medical-grade Nitinol tubing meets ASTM F2063 standards, ensuring it is suitable for long-term implantation in the human body. Its ability to maintain flexibility while providing strong mechanical support makes it superior to traditional metal tubing, such as stainless steel, which lacks shape memory properties.
Nitinol tubing is also widely used in robotics, aerospace, and industrial fluid management applications, where precise movement and adaptability are required.
Our Expertise:
SMA WIRES INDIA provides custom Nitinol tubing solutions with precise dimensions, wall thicknesses, and finishes.
Key Features:
✔ Superelasticity for flexibility in small spaces
✔ Biocompatibility for safe use in the human body
✔ Shape memory effect for minimally invasive applications
Custom Product Development:
🔹Custom tubing sizes & tolerances
🔹 Precision laser cutting & machining
🔹Prototype Development & Mass Production
Applications:
🔹 Cardiovascular Stents & Guidewires
🔹 Orthopedic Implants & Surgical Devices
🔹 Minimally Invasive Surgery Tools
Nitinol Ring Dimensions and Tolerances
Guide Tube
Nominal OD (mm) | OD Tolerance (mm) | ID Tolerance (mm) |
OD≤0.3 | ±0.005 | ±0.010 |
0.3<OD≤0.5 | ±0.005 | ±0.010 |
0.5<OD≤1.5 | ±0.010 | ±0.010 |
1.5<OD≤2.5 | ±0.010 | ±0.020 |
2.5<OD≤3.5 | ±0.020 | ±0.020 |
3.5<OD≤5.0 | ±0.020 | ±0.020 |
5.0<OD≤10.0 | ±0.020 | ±0.020 |
10.0<OD | ±0.030 | ±0.030 |
NOTE = OD & ID can be customize as per requirement
Stent Tube
Nominal OD (mm) | OD Tolerance (mm) | WT Tolerance (mm) |
OD≤0.6 | ±0.010 | ±0.010 |
0.6<OD≤1.5 | ±0.013 | ±0.013 |
1.5<OD≤2.5 | ±0.015 | ±0.015 |
2.5<OD≤3.5 | ±0.015 | ±0.015 |
3.5<OD≤5.0 | ±0.020 | ±0.025 |
5.0<OD≤8.0 | ±0.020 | ±0.025 |
8.0<OD | ±0.030 | ±0.030 |
NOTE = OD & ID can be customize as per requirement
MECHANICAL PROPERTISE (SUPERELASTIC )
Alloy Code | UTS σ_b Mpa | Elongation δ% | UPS σ_load Mpa | Permanent Set After 6% Strain % | Active A_f °C Austenite Finish Temperature |
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 |
NOTE :- All Mechanical Testing Conducted at 22°C +/- 2°C
Surface condition
Outer surface: oxidized state, grinding state
Inner surface: clean state, oxidized state
Different Languages :-
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