ASTM F1713 Ti13Nb13Zr Titanium Alloy for Surgical Implant
- Grade: Ti13Nb13Zr
- Round Bar Dia:4.76-101.6mm
- Round Wire Dia:≤4.76mm
- Osseointegration
- Biocompatibility
- Corrosion Resistance
Features
ASTM F1713 Wrought Ti13Nb13Zr Titanium-13Niobium-13Zirconium Alloy for Surgical Implant Applications (UNS R58130)
ASTM F1713 Ti13Nb13Zr Chemical Composition (wt.%)
| Element | Composition (% mass) |
| Nitrogen, max | 0.05 |
| Carbon, max | 0.08 |
| Hydrogen, max | 0.012 A |
| Iron, max | 0.25 |
| Oxygen, max | 0.15 |
| Niobium | 12.5 – 14.0 |
| Zirconium | 12.5 – 14.0 |
| Titanium B | balance |
| Notes: | |
| A – For material 0.032 in. (0.813 mm) and under, hydrogen content may be up to 0.015%. | |
| B – The percentage of titanium is determined by difference and need not be determined or certified. | |
ASTM F1713 Ti13Nb13Zr Mechanical Properties
| Condition | Tensile Strength, min, psi (MPa) | Yield Strength (0.2% offset), min, psi (MPa) | Elongation in 4D, min, % C | Reduction of Area, min, % C |
| Capability aged | 125 000 (860) | 105 000 (725) | 8 | 15 |
| Solution treated | 90 000 (620) | 65 000 (450) | 10 | 18 |
| Annealed | 90 000 (620) | 40 000 (275) | 15 | 30 |
| Unannealed | 90 000 (620) | 55 000 (380) | 8 | 15 |
| Notes: | ||||
| All data pertains to rod product 0.063 in. (1.575 mm) and under in diameter (D) or thickness (T). | ||||
| A – Up to 4 in. (101.60 mm) inclusive diameter. | ||||
| B – Solution treated or unannealed material is not intended for use as a final product without subsequent hot working or heat treatment, or both. | ||||
| C – Hardness values are not given in the attached table, but typically, elongation and reduction of area are measured using a gauge length of 4D or 2 in., whichever is greater. | ||||
Technical Specifications
| Specification | Value |
| Standard | ASTM F1713 Wrought Ti13Nb13Zr Titanium-13Niobium-13Zirconium Alloy for Surgical Implant Applications (UNS R58130) |
| Grade | Ti13Nb13Zr |
| Condition & Finish | Descaled or pickled, sandblasted, chemically milled, ground, machined, peeled, polished; Annealed or as rolled |
| Type | Bar, Wire |
| Dimension | Bar—Rounds or flats from 3⁄16 in. (4.76 mm) to 4 in.(101.60 mm) in diameter or thickness (other sizes and shapes by special order). |
| Wire—Rounds or flats less than 3⁄16 in. (4.76 mm) in diameter or thickness. | |
| Density | 4.51g/cm³ |
| Inspection Certificate | EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection) |
| Tests | Chemical Composition, Mechanical Properties |
Key Properties
Corrosion Resistance: Excellent resistance to corrosion in biological environments due to forming a stable, protective oxide layer.
Biocompatibility: High biocompatibility, particularly due to the absence of potentially toxic elements like vanadium and aluminum found in Ti6Al4V. The niobium and zirconium in the alloy are well-tolerated by the human body.
Non-toxic: The elements used in this alloy (titanium, niobium, zirconium) are known for their low toxicity and high biocompatibility, making this alloy suitable for long-term implantation.
Osseointegration: Supports good bone integration, which is crucial for successful implantation and stability over time.
Formability: It can be cold-worked, which allows for manufacturing complex shapes for various medical devices.
Weldability: Generally good, though care must be taken to maintain the alloy’s properties during welding, especially to control oxygen and nitrogen pick-up, which could embrittle the material.
Packing
Wire wounded on reel or spool, bars, and rods packed in plywood boxes or on pallets.
Applications
1. Orthopedic Implants:
Artificial Joints: Hip and knee replacements benefit from Ti13Nb13Zr’s low modulus of elasticity, which reduces stress shielding and promotes better bone integration.
Bone Plates and Screws: Used in fracture fixation due to its strength, corrosion resistance, and biocompatibility, aiding in faster healing with reduced risk of implant failure.
2. Dental Implants:
Dental Prostheses: The alloy’s low modulus is particularly beneficial for dental implants, as it can better match the mechanical properties of bone in the jaw, reducing the likelihood of bone resorption around the implant.
3. Spinal Implants:
Spinal Fusion Devices: Ti13Nb13Zr can be used in spinal cages and other fusion devices, and its properties aid in the integration and stabilization of the spine without causing undue stress on adjacent vertebrae.
4. Cardiovascular Applications:
Stents: Its excellent biocompatibility and corrosion resistance make it suitable for cardiovascular stents, where long-term presence in the body without adverse reactions is crucial.
5. Maxillofacial Surgery:
Craniofacial Implants: These are used in reconstructive surgery of the face and skull, where their properties contribute to better aesthetic and functional outcomes.
6. Surgical Instruments:
Medical Tools: While not as common, its corrosion resistance might be utilized in manufacturing surgical instruments that require high durability and resistance to bodily fluids.
7. Research and Development:
Experimental Implants: Due to their promising material characteristics, these are often used in experimental medicine and research to develop new types of implants and medical devices.
