Nitinol Tube ASTM F2063 VIM-VAR Alloy Hypotube with Ultra-Low Inclusion for Neurovascular Minimally Invasive Devices
Price:
Negotiatable
MOQ:
1meter
Delivery Time:
2-30days
Brand:
niktech
Product Description
Nitinol Tube ASTM F2063 VIM-VAR Alloy Hypotube with Ultra-Low Inclusion for Neurovascular Minimally Invasive Devices
1.Product Description
Forged through vacuum induction melting paired with vacuum arc remelting and multi-pass precision cold drawing, this medical-grade nitinol tube adheres rigidly to ASTM F2063 chemical thresholds to eliminate harmful trace impurities that trigger tissue irritation. The alloy balances room-temperature superelasticity and thermal-triggered shape memory, delivering recoverable strain up to 8% with minimal permanent deformation after millions of cyclic bending cycles. Electropolished seamless inner and outer surfaces cut fluid friction and form a stable passive titanium oxide barrier against bodily fluid corrosion. Customizable transformation temperatures, micro thin-wall tolerances and concentricity control support micro hypotube catheter frames and large structural tubing for aerospace actuation, serving precision engineering projects across North America, Europe, Southeast Asia and the Middle East.
2.Full Calibrated Parameter Table
| Test Category | Standard Spec Value | Supplementary Industry Remarks |
|---|---|---|
| Chemical Composition (wt%) | Ni: 54.5–57.0, Ti: Balance; C ≤0.005, Fe ≤0.025, O+N ≤0.05, H ≤0.002, Co/Cu/Cr ≤0.005 | VIM-VAR medical clean melt grade |
| Ultimate Tensile Strength | ≥1070 MPa (155 ksi) | Annealed delivery state |
| Minimum Fracture Elongation | ≥10% | Room temperature tensile testing |
| Max Permanent Set after 6% Strain | ≤0.3% | Critical for long-term implant stability |
| Recoverable Superelastic Strain | 6–8% | Room-temperature superelastic variant |
| Austenite Finish Temp (Af) | -10℃ ~ +15℃ | Custom heat treatment for tailored transformation |
| Alloy Density | 6.5 g/cm³ | Core physical density of NiTi alloy |
| Melting Temperature | 1310 ℃ | High thermal stability for aerospace use |
| Standard Outer Diameter Range | 0.15mm – 12mm | Micro hypotube to structural tubing |
| Standard Wall Thickness | 0.02mm – 1.0mm | Tolerance ±0.005mm for precision machining |
| Mandatory Executive Standards | ASTM F2063, ISO 10993, ISO 13485 | Biomedical & aerospace global regulatory benchmarks |
| Available Surface Finishes | Electropolished, Passivated, Bright Drawn | Low-friction biocompatible surfaces |
3. Advantage
- VIM-VAR dual vacuum melting production drastically reduces internal inclusions, boosting 100+ million cycle bending fatigue resistance for long-term implant use
- Seamless drawn forming eliminates welding seams, lowering fluid shear friction inside catheter and stent delivery systems
- ISO 10993 biocompatibility verified, passive titanium oxide film blocks nickel ion leaching to reduce human tissue inflammation risk
- Tunable phase transition temperatures via controlled heat treatment, matching human body temperature and aerospace extreme thermal fluctuation conditions
- Ultra-tight wall thickness & concentricity tolerances, compatible with laser cutting, laser welding and shapesetting cleanroom post-processing
- Multiple polished surface treatments to fit cardiovascular, orthopedic, endoscopic and aerospace actuator assembly workflows
4. Application
This precision nitinol tube acts as the foundational raw tubing for Class II & III permanent and temporary implantable medical hardware, including self-expanding vascular stents, neuro interventional hypotubes, transcatheter valve frames, orthodontic shaping components and endoscopic catheter shafts. Beyond clinical sectors, it serves lightweight aerospace thermal actuators, miniature thermal sensing pipelines and industrial shape-memory drive structures. Medical device R&D labs, interventional surgery equipment developers and aerospace precision engineering facilities across global regions rely on this alloy tubing for minimally invasive clinical treatment and lightweight mechanical assembly.
5. FAQ
Q1: What metallurgical process separates medical-grade nitinol tube from industrial nickel-titanium tubing?
A: Medical variants adopt VIM-VAR double vacuum melting to strictly limit trace impurity content and meet ASTM F2063 & ISO 10993 biocompatibility standards, while industrial nitinol tubing relaxes chemical control without biocompatibility validation.
Q2: Can nitinol tube restore its original geometry after repeated bending deformation?
A: Room-temperature superelastic grades fully recover shape after up to 8% strain with negligible permanent set; shape memory variants revert to pre-programmed dimensions once heated above customized Af transformation temperature.
Q3: Can outer diameter, wall thickness and transformation temperature be modified per custom design drawings?
A: All dimensional parameters and phase transition temperatures can be precisely adjusted to match exclusive stent, catheter or aerospace component structural blueprints.
Q4: Does electropolished nitinol tube resist corrosion inside human blood and saline environments?
A: The nano-thick passive titanium oxide layer formed on electropolished surfaces delivers consistent corrosion resistance against bodily fluids for multi-year implant service cycles.
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Wuxi Nickel New Material Co., Ltd
Location
Xinwu District, Wuxi City, Jiangsu Province
Contact Person
John