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Product Introduction
Ti-6Al-7Nb Medical Titanium Wire (UNS R56700) is a premium, vanadium-free α+β titanium alloy wire specifically developed for surgical implant applications. ti 6ai 7nb titanium wire is engineered as a biocompatible alternative to Ti-6Al-4V (Grade 5), replacing vanadium with niobium to eliminate potential cytotoxic risks while maintaining excellent mechanical strength and corrosion resistance.
Key Specifications & Standards
- Standard Compliance: ASTM F1295 (primary standard for surgical implants) & ISO 5832-11.
- Chemical Composition (Typical):
- Titanium (Ti): Balance
- Aluminum (Al): 5.5 – 6.5%
- Niobium (Nb): 6.5 – 7.5%
- Interstitials: O ≤ 0.20%, N ≤ 0.05%, C ≤ 0.08%, H ≤ 0.012%ASTM International
- Diameter Range: Typically 0.5 mm – 5.0 mm (custom sizes available).
- Surface Finish: Bright, pickled, acid-etched, or medical-grade polished.
Key Advantages
- Superior Biocompatibility: Vanadium-free composition minimizes inflammatory and allergic responses, offering excellent tissue tolerance and osseointegration.
- Excellent Corrosion Resistance: Forms a stable, protective oxide layer that is highly resistant to degradation in bodily fluids, superior to Ti-6Al-4V in some biological environments.
- High Strength & Lightweight: Provides strength comparable to Grade 5 titanium while remaining 40% lighter than steel.
- Non-Magnetic: Safe for use in MRI environments and does not interfere with electronic medical devices.
- Good Fabricability: Can be precisely drawn, bent, formed, and welded to create complex medical components.
Medical Applications
- Orthopedics: Bone screws, cerclage cables, spinal fixation rods, intramedullary nail components, and artificial joint parts.
- Dentistry: Dental implants, orthodontic archwires, and prosthetic frameworks.
- Trauma Surgery: High-strength K-wires, tension bands, and fracture fixation devices.
- Surgical Instruments: Minimally invasive surgical tools and endoscopic components.
Comparison: Ti-6Al-7Nb vs. Ti-6Al-4V (Grade 5)
|
Feature |
Ti-6Al-7Nb |
Ti-6Al-4V (Grade 5) |
|
Key Alloying |
Aluminum + Niobium (Nb) |
Aluminum + Vanadium (V) |
|
Biocompatibility |
Superior (V-free, lower cytotoxic risk) |
Good |
|
Corrosion Resistance |
Excellent |
Very Good |
|
Mechanical Strength |
High (Slightly lower than Grade 5) |
Very High |
|
Primary Standard |
ASTM F1295 |
ASTM F136 |
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