Gr23 Titanium Wire for Implants and Surgical Use
Grade 23 Titanium Wire (Ti-6Al-4V ELI Wire) is a low interstitial (ELI, Extra Low Interstitial) version of the Ti-6Al-4V alloy, specifically designed for medical implants and high-reliability structural components. It combines high strength, lightweight properties, and excellent biocompatibility. Compared to Gr5 Titanium Wire, Gr23 has lower oxygen content and better toughness, allowing it to maintain stable performance under low-temperature and high-impact conditions.
Chalco Titanium offers Grade 23 Titanium Wire that meets ASTM B863 / ASTM F136 / ISO 5832-3 standards, with EN 10204-3.1 material certificates. We also provide ultrasonic cleaning + vacuum packaging to ensure cleanliness. Standard specifications are available in stock, with samples delivered within 2 weeks, and small batch orders are supported to meet both medical and industrial needs.
Gr23 Titanium Wire Introduction
| Alloy | Gr23 / Ti-6Al-4V ELI / UNS R56401 |
|---|---|
| Wire Diameter | Standard Ø0.10 mm – 6.00 mm (0.004" – 0.236") Custom sizes up to Ø10 mm |
| Common AWG | 24 AWG≈0.5mm│18 AWG≈1mm│14 AWG≈1.6mm |
| Tolerance | Ø≤0.50 mm:±0.01 mm 0.50 ＜Ø≤ 1.50 mm:±0.02 mm Ø>1.50 mm:±0.03 mm |
| Coil | D100 / D200 / D300, supports straight bars (≤ 3m) |
| Condition | Annealed / Cold-Drawn |
| Surface | Bright / Pickled / Polished / Medical-grade ultrasonic cleaning |
| Standards | ASTM B863 / ASTM F136 / ISO 5832-3 |
| Packaging | Vacuum sealed + Argon protection to prevent oxidation and contamination during transport |
Not sure which specification is suitable for your medical, aerospace, or additive manufacturing project? Click below to get a quote and datasheet.
Technical Specifications & Industry Standards
Ti-6Al-4V ELI Chemical Composition (ASTM B863)
| Element | Content (Weight %) |
|---|---|
| Aluminum (Al) | 5.50 – 6.50 |
| Vanadium (V) | 3.50 – 4.50 |
| Oxygen (O) | ≤ 0.13 |
| Nitrogen (N) | ≤ 0.05 |
| Carbon (C) | ≤ 0.08 |
| Hydrogen (H) | ≤ 0.012 |
| Iron (Fe) | ≤ 0.25 |
| Titanium (Ti) | Balance (Remaining) |
Grade 23 Tensile Strength (Annealed Condition)
| Property | Value |
|---|---|
| Tensile Strength (UTS) | ≥ 860 MPa (125 ksi) |
| Yield Strength (YS - 0.2%) | ≥ 795 MPa (115 ksi) |
| Elongation | ≥ 10% |
| Density | 4.43 g/cm³ |
| Modulus of Elasticity | 113 GPa |
Standards Applied
- ASTM B863 — Titanium and Titanium Alloy Wire Standard
- ASTM F136 / ISO 5832-3 — Medical-grade Ti-6Al-4V ELI
- AWS A5.16 (ERTi-23) — Welding Filler Wire Standard
- EN 10204-3.1 — Material Certificate (Available upon request)
Note: The low oxygen content and high toughness of Gr23 Titanium Wire make it the preferred material for surgical implants, welding repair parts, and low-temperature applications, while also meeting aerospace and industrial welding demands.
Need a full performance report or confirmation on whether the specifications match your project? Click below to request a quote, and Chalco engineers will provide a solution within 24 hours.
Grade 23 Titanium Wire Advantages
- Extra Low Interstitial (ELI) Characteristics: With oxygen content ≤ 0.13% and hydrogen content ≤ 0.012%, it significantly enhances toughness, reducing the risk of embrittlement, and meets implant-grade requirements.
- Outstanding Biocompatibility: Compliant with ASTM F136 and ISO 5832-3 medical standards, making it suitable for long-term implantation and surgical fixation devices.
- Lightweight & High Strength Balance: The specific strength far exceeds that of stainless steel, with a density of only 4.43 g/cm³, achieving lightweight design while ensuring strength.
- Excellent Corrosion Resistance: Performs stably in body fluids, chlorides, and most chemical media, reducing the risk of material degradation.
- Excellent Weldability & Machinability: Suitable for TIG/MIG welding, precision drawing, surface polishing, and supports medical-grade cleanliness processes.
Typical Applications of Grade 23 Titanium Wire
Medical Implants & Surgical Wires
Spec: Ø 0.20 – 1.6 mm
Gr23 medical titanium wire (Ti-6Al-4V ELI) is widely used in orthopedic and dental implants, stents, and surgical fixation wires. Its extra low interstitial (ELI) content reduces risks of hydrogen embrittlement and cracking, while meeting ASTM F136 and ISO 5832-3 standards.
Sports Medicine Devices
Spec: Ø 0.50 – 1.2 mm
Used in ligament fixation and joint repair devices, Gr23 offers high strength, lightweight properties, and excellent corrosion resistance, ensuring reliability of sports devices under high moisture and load conditions.
Aerospace Components & Fasteners
Spec: Ø 1.2 – 3.0 mm
Gr23 Titanium Wire is used for aerospace components, meeting high-temperature and high-stress requirements. Compared to Gr5, its ELI purity provides higher toughness and fracture toughness, making it ideal for critical fasteners and engine components.
Precision Springs & Elastic Components
Spec: Ø 0.3 – 1.0 mm
Used for high-precision medical springs or aerospace elastic components, Gr23 ensures elasticity and fatigue life under complex loading conditions.
Spec: Ø 1.2 – 1.6 mm
Due to its high surface cleanliness and stable composition, Gr23 Titanium Wire is widely used in WAAM (Wire Arc Additive Manufacturing) and LMD (Laser Metal Deposition) processes, suitable for complex medical implants and lightweight aerospace structures.
Gr23 vs Gr5 – Which is More Suitable for Your Project?
Click below to view the Gr23 vs Gr5 comparison and make a quick decision.
Manufacturing Process & Deep Processing
Manufacturing Process
Chalco Titanium uses a fully traceable process control to ensure consistent chemical composition, dimensional tolerance, and stable performance. The process includes:
- Vacuum Melting → Secondary Remelting
- Hot Forging / Extrusion
- Multiple Cold Drawing Passes (Bright Drawing)
- Vacuum Annealing → Surface Purification
- Coiling / Cut to Length
Purity Control — Double Vacuum Melting System
- VIM + VAR secondary remelting, with O/H/Fe levels controlled to 20% below ASTM B863 limits.
- On-line ICP rapid spectroscopy for real-time adjustment of element fluctuations, within ±0.03%.
Dimensional Precision — Multiple Cold Drawing Passes
- PLC-controlled Drawing Machine, constant tension, with tolerances of ±0.01 mm.
- Layer Winding to avoid cross-twisting, directly compatible with WAAM/TIG wire feeding.
Surface Cleanliness — Vacuum Annealing + Triple Purification
- Vacuum Annealing for stress relief and hydrogen reduction.
- Pickling → Ultrasonic Cleaning → Argon Drying, no hand contact throughout, with surface oxide layer < 0.3 μm.
- Vacuum Packaging + Argon Filling to maintain cleanliness during long-distance sea transportation.
Deep Processing & Delivery Capability
Delivery Assurance: Standard specifications can be delivered within 4-6 weeks, with samples available in as little as 2 weeks.
Flexible Customization: Supports various wire diameters, coil specifications, and surface treatments.
- Cut to Length (tolerance ±0.5 mm)
- End Chamfering / Precision Grinding to improve assembly efficiency
- Mirror Polishing (Ra ≤ 0.2 μm)
- Medical-grade Ultrasonic Cleaning, with particle residue < 25 μm
- Third-Party Testing: SGS / BV certificates included with shipments.
Chalco Titanium Advantages as a Supplier
- Quality & Certification in One Go: ISO 9001 + AS9100D dual system certifications, EN 10204-3.1 certificates, SGS/BV third-party reports.
- Stock & Small Batch, Predictable Delivery: Standard specifications 0.10–6 mm in long-term stock, MOQ 1 kg, samples shipped within 2 weeks.
- Product Range & Alloy Options: In addition to Grade 23, Chalco supplies commercially pure grades such as Grade 1 titanium wire and Grade 2 titanium wire, as well as high-strength Grade 5 titanium wire, suitable for industrial, structural, and biomedical applications.
- 24/7 Engineering Support: Engineers assist with AWG-mm conversions, welding parameters, product selection comparisons, and other technical issues.
Need certification documents or real-time inventory? Click below to request a quote, and Chalco Titanium will provide a solution within the same day.
Gr23 Titanium vs Gr5 Titanium Wire
| Comparison Item | Gr23 Titanium Wire (Ti-6Al-4V ELI) | Gr5 Titanium Wire (Ti-6Al-4V) |
|---|---|---|
| Tensile Strength | ≥ 860 MPa | ≥ 895 MPa |
| Elongation | ≥ 14% | ≥ 10% |
| Purity Control | Oxygen content ≤ 0.13% (Lower) | Oxygen content ≤ 0.20% |
| Biocompatibility | Excellent, compliant with ASTM F136 / ISO 5832-3 | Good, non-ELI standard |
| Corrosion Resistance | Excellent (Suitable for implants and medical devices) | Good |
| Machinability | Easier to process, excellent weldability | Slightly more difficult to process |
| Typical Applications | Medical implants, surgical fixation devices | Aerospace components, additive manufacturing |
Summary: Gr23: More pure, better toughness, implant-grade safety. Gr5: Higher strength, suitable for aerospace & structural parts. Click here to view Gr5 Titanium Wire details. Or find more titanuim wire products in Chalcotitanuim.
FAQ
Why is Gr23 Titanium Wire more suitable for medical implants than Gr5?
Gr23 has a lower oxygen content (≤ 0.13%) and higher toughness, meeting ASTM F136 / ISO 5832-3 standards, with excellent biocompatibility. Compared to Gr5, it reduces the risk of implant cracking and hydrogen embrittlement.
Does Gr23 Titanium Wire meet international medical standards?
Yes, it fully meets ASTM B863, ASTM F136, ISO 5832-3, and is available with EN 10204-3.1 certificates. Third-party testing (SGS / BV) is supported.
Can Gr23 Titanium Wire be used for welding or 3D printing?
Yes, it has excellent weldability (AWS A5.16 ERTi-23) and clean surface, suitable for TIG/MIG welding and WAAM/LMD additive manufacturing.
Can medical-grade surface treatment be provided?
Yes, Chalco provides ultrasonic cleaning + vacuum packaging with particle residue < 25 µm. Surface finishes: Bright, Pickled, Polished.
Do you support small batch orders? What is the delivery lead time?
Yes, small batch orders start from 1 kg. Samples in 2 weeks, bulk orders 4–6 weeks. DDP/DAP logistics supported.
