Product Description
Nitinol is a unique material. No other material exhibits the mechanical shape memory superelasticity and the thermal shape memory effects. This is especially true for Nitinol tubing.Fields of applications of Nitinol tubes are peripheral stents,cardio stents and other medical devices for the human body. We only deliver Nitinol tubes with the mechanical properties, requested tolerances and appropriate surface quality for stent use. All our Niti tubes are made according to customers specifications.
Nitinol tubing for medical devices
Medical devices use requires high quality surface on Nitinol tubing. The technology and tube making processes developed by Vascotube have been perfected over many years of practice. Using our experience, combined with new technologies and custom made machinery, we have been able to develop a drawing process that avoids the need for slurry cleaning, chemical cleaning or mechanical removal operations on the inner surface of the drawn tube. Our process allows us to attain a roughness value of Ra 0,1 µm.
Dimension | Out Diameter 1.5 ~ 10 mm, Wall Thickness ≥ 0.2 mm. |
Alloys | Superelastic, Shape Memory Available and Custom Alloy Formulations |
Temperature Range ( Af ) | - 20 ~ 100 deg. C |
Surface | Natural Oxide, Pickled/Etched, Centerless Ground and Mechanically-cleaned |
Thermomechanical Conditions | As Cold-Worked, Straight Strain Annealed and Shape Set Annealed. |
Certification | Transformed Temperatures, Tensile Properties, Chemical Composition andCustomer Specific Requirements |
Chemical Composition:
| Component | wt % |
|---|
| Nickel | 54,50-57,00 |
| Cobalt | max. 0,050 |
| Iron | max. 0,050 |
| Carbon | max. 0,050 |
| Nioium | max. 0,025 |
| Copper | max. 0,010 |
| Chromium | max. 0,010 |
| Oxygen + Nitrogen | max. 0,050 |
| Hydrogen | max. 0,005 |
| Titanium | balance |
Mechanical / Superelastic Tubes Properties:
| Ultimate Tensile Strength | min. 1000 MPa |
| Fracture Elongation | min. 10 % |
| Loading Plateau Stress (at 3% strain) | min. 380 MPa |
| Permanent Set (after 6% strain) | max. 0,3 % |
| Austenite Finish Temperature(Af) | max. 15 °C |
Physical Tube Properties:
| Melting Point | 1310 °C |
| Density | 6,5 g/cm3 |
| Specific el. Resistivity | 82 μΩcm |
| Coefficient of Thermal Expansion (CTE) | 11×10-6 °K |
| Modulus of Elasticity | 41-75 GPa |
Advantages- More than 16 years experience in the processing of nitnol products.
- The complete production line makes us control the quality from beginning to finishing.
- We have excellent research team that 5 engineers can always supply the exact solution for you.
- The testing items we do covering all properties you like.
- Customized sizes are available.
Packaging & ShippingAccording to conditions of the goods, we supply below packaging and shipping:
- Steel Pallet + Plywood Case + Plastic/ Moistureproof Paper
- Fumigated Wooden Pallet
- Plywood Case + Plastic/ Moistureproof Paper
- Plywood Case + Vacuumed Plastic Bag
- Carton + (Vacuumed) Plastic Bag
- Transport by sea (Large Quantity)
- Transport by air (Urgent Indent )
- Transport by train (Asia and East Europe)
- Transport by land (Russia, Middle Asia)
- Transport by Express (FedEx, DHL, TNT, UPS etc.)
