Ti-13Nb-13Zr (UNS R58130) is a near-beta titanium alloy developed specifically for biomedical implant applications. It was introduced as an alternative to Ti-6Al-4V ELI because its composition contains no aluminum or vanadium, both elements associated with long-term biocompatibility concerns, and replaces them with niobium and zirconium, which are fully biocompatible. The alloy is manufactured and supplied to ASTM F1713 (Standard Specification for Wrought Titanium-13Niobium-13Zirconium Alloy for Surgical Implant Applications). Its elastic modulus is closer to that of cortical bone than conventional alpha-beta alloys, which reduces stress shielding and promotes better long-term load transfer to surrounding bone tissue.
Overview
Ti-13Nb-13Zr offers an outstanding combination of high strength, excellent corrosion resistance in physiological environments, and superior biocompatibility. The near-beta microstructure can be solution treated and aged to achieve a wide range of strength and ductility combinations, allowing the implant designer to match the mechanical response of the device to the clinical requirement. The stable, self-healing passive oxide film formed on the surface provides long-term resistance to pitting and crevice corrosion in chloride-rich body fluids. Because the alloy is free of potentially toxic alloying elements, it is one of the most widely studied and clinically applied beta titanium alloys in modern orthopedics.
Chemical Composition (ASTM F1713)
| Element | Composition (%) |
|---|---|
| Niobium (Nb) | 12.5 – 14.0 |
| Zirconium (Zr) | 12.5 – 14.0 |
| Iron (Fe) | 0.25 max |
| Oxygen (O) | 0.15 max |
| Nitrogen (N) | 0.05 max |
| Carbon (C) | 0.08 max |
| Hydrogen (H) | 0.012 max |
| Titanium (Ti) | Balance |
Mechanical Properties
| Property | Requirement |
|---|---|
| Tensile Strength (UTS) | ≥ 550 MPa |
| Yield Strength (YS) | ≥ 483 MPa |
| Elongation | ≥ 15% |
Applications
Ti-13Nb-13Zr is primarily used in medical implants and orthopedic devices, including hip stems, knee components, spinal fixation systems, bone plates and screws, dental implants and trauma fixation hardware. It is also selected for cardiovascular and other load-bearing implantable devices where a low-modulus, non-toxic titanium alloy is required for long-term service inside the human body.
Shanghai Hangbo Alloy Group supplies Ti-13Nb-13Zr (UNS R58130) in bar, tube and plate forms with full ASTM F1713 material certification and mill test reports.
| Channel | Details |
|---|---|
| Website | www.nickel-alloy.com |
| sales@hangboalloy.com | |
| hangbo@nickel-alloy.com | |
| WhatsApp / Phone | +86 13611656360 |
| Skype | +86 13611656360 |
| Address | Shanghai, China |











