ASTM F136 Titanium Wire is a high-performance medical titanium alloy wire manufactured from Ti-6Al-4V ELI, also known as Titanium Grade 23.

The alloy contains approximately 6% aluminum and 4% vanadium, with titanium as the balance. Compared with conventional Ti-6Al-4V Grade 5, the ELI (Extra Low Interstitial) version features lower oxygen and iron content, providing improved ductility, fracture toughness, and biocompatibility.

ASTM F136 Grade 23 titanium wire is widely used in medical and surgical applications requiring high strength, excellent corrosion resistance, and long-term reliability in physiological environments.

Typical applications include orthopedic implants, dental devices, surgical instruments, medical fixation components, and other implantable medical devices.

What Is Ti-6Al-4V ELI Titanium Wire?

Ti-6Al-4V ELI is one of the most widely used titanium alloys for medical implant applications.

"ELI" stands for Extra Low Interstitial, referring to the controlled low content of interstitial elements such as:

Oxygen

Iron

Carbon

Nitrogen

Hydrogen

The reduced interstitial content improves the material's ductility and fracture toughness compared with conventional Grade 5 titanium alloy.

This makes Grade 23 particularly suitable for demanding medical applications where mechanical reliability and biocompatibility are critical.

Product Specifications

Parameter	Specification
Product Name	ASTM F136 Titanium Wire
Material	Ti-6Al-4V ELI
Grade	Grade 23
Standard	ASTM F136
Related Standard	ASTM F1472
Diameter Range	0.05 – 3.0 mm
MOQ	10 kg
Shape	Straight Wire / Coiled Wire
Surface	Polished / Pickled
Color	Metallic Silver
Supply Condition	According to customer requirements
Application	Medical Implants & Medical Devices

Custom diameters, tolerances, surface finishes, and coil weights are available according to customer requirements.

Key Features

Excellent Biocompatibility

Ti-6Al-4V ELI is widely used for implantable medical devices because of its excellent compatibility with the human body.

The material is suitable for applications requiring long-term contact with human tissue and physiological fluids.

High Strength-to-Weight Ratio

Titanium Grade 23 provides high mechanical strength while maintaining a relatively low density.

This allows medical devices and implants to achieve:

High structural strength

Reduced component weight

Improved mechanical efficiency

Excellent Corrosion Resistance

The naturally formed titanium oxide film provides excellent protection against corrosion.

Grade 23 titanium wire offers reliable corrosion resistance in physiological environments, making it suitable for long-term medical applications.

Improved Ductility and Fracture Toughness

Compared with conventional Ti-6Al-4V Grade 5, the ELI version has lower interstitial element content.

This provides:

Improved ductility

Better fracture toughness

Enhanced reliability

Better performance in demanding implant applications

Good Fabrication Performance

Titanium Grade 23 wire can be further processed according to product requirements.

Available processing methods include:

Precision cutting

Straightening

Forming

Machining

Surface polishing

Custom shaping

Available Wire Forms

Straight Titanium Wire

Suitable for:

Orthopedic components

Surgical instruments

Medical fasteners

Precision machined components

Coiled Titanium Wire

Suitable for:

Medical component manufacturing

Precision forming

Continuous production processes

Customized medical devices

Mechanical Properties

Typical minimum mechanical properties for Grade 23 titanium wire may include:

Grade	Tensile Strength	Yield Strength	Elongation
Gr23 Ti-6Al-4V ELI	≥ 793 MPa	≥ 759 MPa	≥ 10%

Actual mechanical properties may vary depending on wire diameter, processing condition, heat treatment, and applicable specification requirements.

Chemical Composition

Element	Grade 23 Ti-6Al-4V ELI
Titanium (Ti)	Balance
Aluminum (Al)	5.5 – 6.5%
Vanadium (V)	3.5 – 4.5%
Iron (Fe)	≤ 0.25%
Oxygen (O)	≤ 0.13%
Nitrogen (N)	≤ 0.03%
Carbon (C)	≤ 0.08%
Hydrogen (H)	≤ 0.0125%

Chemical composition can be verified through material certificates and chemical analysis reports.

Surface Finish Options

Polished Surface

A polished surface is suitable for applications requiring:

Smooth appearance

Improved surface quality

Precision medical components

Reduced surface roughness

Pickled Surface

Pickling removes surface oxide scale and processing contamination.

Advantages include:

Uniform metallic surface

Clean appearance

Improved surface cleanliness

Suitable for further processing

Applications

Orthopedic Implants

ASTM F136 Grade 23 titanium wire is widely used for manufacturing orthopedic medical components.

Typical applications include:

Bone fixation components

Orthopedic screws

Bone plates

Intramedullary devices

Surgical fixation systems

Orthopedic rods

The material provides an excellent combination of mechanical strength, corrosion resistance, and biocompatibility.

Dental Applications

Titanium alloys are widely used in modern dental applications.

Grade 23 titanium materials can be used in components for:

Dental implants

Implant accessories

Orthodontic devices

Dental surgical instruments

Precision dental components

Its corrosion resistance and biocompatibility make titanium an important material for dental applications.

Cardiovascular Medical Devices

Titanium alloy materials are also used in selected cardiovascular and surgical medical devices.

Potential applications include:

Medical device components

Pacemaker components

Surgical fixation elements

Precision implantable structures

Material selection should be based on specific regulatory and device design requirements.

Surgical Instruments

Titanium Grade 23 wire can also be used in precision medical and surgical equipment requiring:

Lightweight construction

High mechanical strength

Corrosion resistance

Repeated sterilization resistance

Typical applications include precision components and specialized surgical instruments.

Why Ti-6Al-4V ELI Instead of Conventional Grade 5?

Property	Grade 5 Ti-6Al-4V	Grade 23 Ti-6Al-4V ELI
Aluminum	6%	6%
Vanadium	4%	4%
Interstitial Elements	Standard	Lower
Ductility	Good	Improved
Fracture Toughness	Good	Improved
Medical Implant Use	Limited by specification	Widely Used
Biocompatibility	Good	Excellent
Typical Application	Aerospace / Industrial	Medical / Surgical

Grade 23 is specifically preferred for demanding medical applications because of its controlled low interstitial content and improved mechanical reliability.

Manufacturing Process

Titanium Grade 23 medical wire is manufactured through carefully controlled processing to ensure dimensional accuracy and stable material performance.

Typical production steps include:

Raw Material Inspection → Melting → Forging → Rolling → Wire Drawing → Intermediate Annealing → Precision Drawing → Straightening or Coiling → Surface Treatment → Inspection → Packaging

For precision medical applications, additional processing may include:

Fine diameter drawing

Surface polishing

Precision straightening

Diameter tolerance control

Surface defect inspection

Quality Control

Strict inspection procedures can be performed according to ASTM standards and customer requirements.

Chemical Analysis

Verification of:

Aluminum

Vanadium

Iron

Oxygen

Nitrogen

Carbon

Hydrogen

Mechanical Testing

Testing may include:

Tensile strength

Yield strength

Elongation

Bend testing

Dimensional Inspection

Inspection items include:

Wire diameter

Diameter tolerance

Straightness

Length

Coil weight

Surface Inspection

The wire surface can be inspected for:

Cracks

Scratches

Oxidation

Surface contamination

Drawing defects

Packaging

Titanium medical wire is carefully packaged to protect the surface during transportation.

Standard packaging options include:

Plastic protective wrapping

Vacuum packaging upon request

Coil protection

Carton packaging

Export wooden case

Customized packaging is available for precision medical materials.

Why Choose Grade 23 Titanium Wire?

ASTM F136 Ti-6Al-4V ELI titanium wire provides an excellent combination of:

Excellent biocompatibility

High strength-to-weight ratio

Excellent corrosion resistance

Improved ductility

Good fracture toughness

Low density

Reliable mechanical performance

Suitability for implantable medical devices

These properties make Grade 23 titanium wire an important material for orthopedic, dental, surgical, and other advanced medical applications.

Custom ASTM F136 Grade 23 Titanium Wire is available in diameters from 0.05 mm to 3.0 mm, with polished or pickled surfaces, supplied in straight lengths or coils according to customer requirements.

Hot Tags: