Medical Titanium Rod
Medical Titanium Rod is a high-performance implant-grade titanium material designed for orthopedic and surgical applications where long-term biocompatibility and mechanical reliability are critical. Produced from high-purity sponge titanium combined with controlled alloying elements such as Al and V (for Ti-6Al-4V ELI) or Nb (for beta titanium grades), the rod undergoes Vacuum Arc Remelting (VAR) and multiple forging cycles to reduce impurity content and refine grain structure.
- Product Introduction
Medical Titanium Rod is a high-performance implant-grade titanium material designed for orthopedic and surgical applications where long-term biocompatibility and mechanical reliability are critical. Produced from high-purity sponge titanium combined with controlled alloying elements such as Al and V (for Ti-6Al-4V ELI) or Nb (for beta titanium grades), the rod undergoes Vacuum Arc Remelting (VAR) and multiple forging cycles to reduce impurity content and refine grain structure.
This controlled metallurgical process improves fatigue resistance and ensures stable performance under cyclic body loads. Strict control of oxygen, nitrogen, and hydrogen levels enhances ductility and corrosion resistance in physiological environments, making it suitable for load-bearing implants and long-term internal fixation devices.
Features
1. Implant-Grade Purity Control
Produced under vacuum melting (VAR/ESR) to significantly reduce oxygen and iron impurities. Lower interstitial elements directly improve toughness and reduce brittleness, which is essential for long-term implantation stability.
2. High Fatigue Strength via Grain Refinement
Multi-stage hot forging and thermo-mechanical processing refine the microstructure, creating uniform grain distribution that improves resistance to cyclic stress in human movement environments such as walking and joint loading.
3. Excellent Biocompatibility
The alloy composition is optimized to maintain a stable passive titanium oxide layer (TiO₂), which minimizes ion release and ensures compatibility with human tissue and bone integration.
4. Superior Corrosion Resistance
Resistant to chloride-rich physiological fluids due to stable oxide film formation, preventing degradation in long-term implantation conditions.
5. Controlled Mechanical Modulus
Optional beta titanium variants allow reduced elastic modulus closer to human bone, reducing stress shielding effects and improving healing efficiency.
Medical Applications
The Medical Titanium Rod is widely used in load-bearing orthopedic and surgical systems where strength, stability, and biological safety are required.
1.Orthopedic Internal Fixation: Used in fracture plates, intramedullary nails, and spinal rods because its high fatigue strength prevents failure under repetitive body motion and weight-bearing stress.
2.Spinal Surgery Systems: Provides long-term structural support for spinal correction implants, where controlled elasticity helps maintain alignment while reducing stress shielding.
3.Dental Implant Structures: Used as support rods in dental frameworks due to its corrosion resistance in saliva and stable osseointegration performance.
4.Trauma Reconstruction Devices: Suitable for high-impact fracture fixation because its refined grain structure improves impact toughness and reduces risk of implant breakage.
5.Surgical Instrument Components: Used in reusable surgical tools requiring repeated sterilization cycles without material degradation.
Customized Service
China Super Tech Co., Ltd. provides full-process customization based on clinical and OEM requirements rather than standard off-the-shelf production.
1. Composition Engineering
We adjust alloy systems (Ti-6Al-4V ELI, Ti-6Al-7Nb, β-Ti alloys) based on required modulus, strength, and biological response. This is achieved through precise element control during vacuum melting.
2. Mechanical Property Tuning
Through controlled forging ratios and heat treatment cycles, we can tailor tensile strength, elongation, and fatigue life according to specific implant load scenarios.
3. Dimensional Precision Machining
CNC centerless grinding and straightening systems ensure tight tolerances for surgical compatibility, especially for minimally invasive implantation systems.
4. Surface Optimization
Options include polished, sandblasted, or acid-etched surfaces to improve osseointegration rate by increasing surface energy and micro-roughness for bone cell adhesion.
5. OEM/ODM Support
We support medical device manufacturers with prototype development, regulatory documentation assistance, and batch consistency control to ensure compliance with ISO 13485 requirements.
Specifications
|
Parameter |
Specification |
|
Material Grades |
Ti-6Al-4V ELI / Ti-6Al-7Nb / Pure Titanium Grade 4 |
|
Standard |
ASTM F136 / ASTM F67 / ISO 5832 |
|
Diameter Range |
3.0 mm – 50.0 mm |
|
Length |
500 mm – 3000 mm (customizable) |
|
Tensile Strength |
≥ 860 MPa (Ti-6Al-4V ELI typical) |
|
Yield Strength |
≥ 795 MPa |
|
Elongation |
≥ 10–14% |
|
Surface Finish |
Polished / Ground / Sandblasted |
|
Oxygen Content |
≤ 0.13% (ELI grade control) |
|
Manufacturing Process |
VAR + Multi-stage Forging + Heat Treatment |
FAQ
Q1: Why is titanium preferred for medical implants?
Titanium naturally forms a stable oxide layer that prevents corrosion and minimizes ion release in the human body, making it one of the safest materials for long-term implantation.
Q2: What makes your rods different from standard titanium materials?
Our rods are produced using Vacuum Arc Remelting and controlled forging, which significantly reduces impurities and improves grain uniformity-this directly increases fatigue life and implant reliability.
Q3: Can the mechanical properties be adjusted for different surgical needs?
Yes. By modifying alloy composition and heat treatment cycles, we can balance strength and elasticity depending on whether the application requires load-bearing or flexible support.
Q4: Do you support medical certification requirements?
Yes. We provide material traceability, batch testing reports, and documentation support aligned with ASTM and ISO medical material standards to assist OEM regulatory approval processes.
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