Titanium Grade 23 Fasteners are made from Ti-6Al-4V ELI (Extra Low Interstitial) titanium alloy and are known for their high strength-to-weight ratio, corrosion resistance and low interstitial content. Grade 23 is commonly associated with applications requiring a combination of strength, light weight and material cleanliness. ASTM F136 specifies wrought annealed Ti-6Al-4V ELI for surgical implant applications, with UNS R56401 designated in that specification. Grade 23 material is also identified as UNS R56407 in ASTM B381 Grade F-23.
We supply Titanium Grade 23 Fasteners in different configurations, sizes, thread forms and finishes according to customer drawings, specifications and applicable standards.
What Are Titanium Grade 23 Fasteners?
Titanium Grade 23 Fasteners are high-performance titanium alloy fastening components manufactured from Ti-6Al-4V ELI. The ELI designation means Extra Low Interstitial, with controlled levels of elements such as oxygen, nitrogen, carbon and hydrogen.
This alloy is closely related to conventional Ti-6Al-4V Grade 5 but has lower interstitial limits. Grade 23 combines titanium's low density with useful mechanical strength and corrosion resistance, making it suitable for demanding applications where weight, material performance and surface durability are important.
ASTM F136 covers wrought annealed Ti-6Al-4V ELI for surgical implant applications and specifies the chemical, mechanical and metallurgical requirements for the material.
Table of Contents
- ➤ Ti-6Al-4V ELI Fasteners Specifications
- ➤ Titanium Grade 23 Fasteners Types
- ➤ ASTM F136 Titanium Grade 23 Screws
- ➤ ASTM F468 / F467 Grade 23 Fasteners
- ➤ UNS R56401 and UNS R56407 Grade 23 Titanium
- ➤ Chemical Composition of Ti-6Al-4V ELI
- ➤ Mechanical Properties of Grade 23 Titanium Fasteners
- ➤ Why Choose Ti-6Al-4V ELI Grade 23 Fasteners?
- ➤ Applications of Titanium Grade 23 Fasteners
- ➤ Titanium Grade 23 Fasteners Manufacturing & Quality
- ➤ Ti-6Al-4V ELI Bolts Supplier in India
Ti-6Al-4V ELI Fasteners Specifications
| Property | Titanium Grade 23 / Ti-6Al-4V ELI |
|---|---|
| Alloy | Ti-6Al-4V ELI |
| Titanium Grade | Grade 23 |
| Aluminium | 5.5–6.5% |
| Vanadium | 3.5–4.5% |
| Iron | 0.25% max |
| Carbon | 0.08% max |
| Nitrogen | 0.03% max |
| Hydrogen | 0.0125% max |
| Oxygen | 0.13% max |
| Density | Approx. 4.43 g/cm³ |
| Typical Yield Strength | Approx. 790 MPa |
| Typical Tensile Strength | Approx. 860 MPa |
| Modulus of Elasticity | Approx. 113.8 GPa |
| Alloy Type | Alpha-beta titanium alloy |
Titanium Grade 23 Fasteners Types
We can supply Grade 23 titanium fasteners in multiple configurations for equipment assembly and specialized engineering requirements.
- Titanium Grade 23 Bolts – Hex bolts, heavy hex bolts and customized bolt designs.
- Ti-6Al-4V ELI Screws – Machine screws, socket head screws and application-specific screw designs.
- Grade 23 Titanium Nuts – Hex nuts, lock nuts and custom nut configurations.
- Titanium Grade 23 Washers – Flat washers and specially dimensioned washers.
- Titanium Grade 23 Stud Bolts – Fully threaded and partially threaded stud configurations.
- Titanium Grade 23 Threaded Rods – Continuous threaded rods supplied in specified lengths.
- Titanium Grade 23 Socket Head Cap Screws – Suitable where compact high-strength fastening is required.
- Custom Titanium Fasteners – Components manufactured according to drawings, dimensions and customer specifications.
➤ ASTM F136 Titanium Grade 23 Screws
ASTM F136 Titanium Grade 23 Screws are manufactured from Ti-6Al-4V ELI material covered by the ASTM F136 specification. The current ASTM F136-26 specification covers wrought annealed Ti-6Al-4V ELI and specifically identifies UNS R56401.
ASTM F136 is particularly associated with surgical implant material requirements, so buyers should distinguish between an ASTM F136 material designation and a general industrial fastener specification. For industrial fastening applications, the required product standard, dimensions, mechanical properties and certification should be confirmed before ordering.
➤ ASTM F468 / F467 Grade 23 Fasteners
ASTM F468 is a specification covering nonferrous bolts, hex cap screws and studs, and its material tables include Ti-6Al-4V ELI Grade 23. Historical ASTM F468M information identifies Grade 23 Ti-6Al-4V ELI with UNS R56401.
When purchasing ASTM F468 / F467 Grade 23 Fasteners, we recommend specifying the exact ASTM edition, product type, alloy designation, dimensions, thread requirements and certification required for the application.
This avoids confusion between material-grade terminology and the product standard being requested.
➤ UNS R56401 and UNS R56407 Grade 23 Titanium
Two UNS numbers can appear in Grade 23 titanium references, but they should not simply be treated as interchangeable.
UNS R56401 is explicitly identified by ASTM F136 for wrought Ti-6Al-4V ELI used in surgical implant applications.
UNS R56407 is identified by ASTM B381 as Grade F-23 Ti-6Al-4V ELI titanium alloy forgings.
Therefore, purchase specifications should state the complete material and product standard, rather than relying on "Grade 23" alone.
Chemical Composition of Ti-6Al-4V ELI
| Element | Grade 23 Typical / Maximum Requirement |
|---|---|
| Titanium | Balance |
| Aluminium | 5.5–6.5% |
| Vanadium | 3.5–4.5% |
| Iron | 0.25% max |
| Oxygen | 0.13% max |
| Carbon | 0.08% max |
| Nitrogen | 0.03% max |
| Hydrogen | 0.0125% max |
Mechanical Properties of Grade 23 Titanium Fasteners
| Mechanical Property | Typical Value |
|---|---|
| Tensile Strength | 860 MPa |
| Yield Strength | 790 MPa |
| Elongation | 15% |
| Elastic Modulus | 113.8 GPa |
| Density | 4.43 g/cm³ |
| Vickers Hardness | Approx. 341 HV |
Why Choose Ti-6Al-4V ELI Grade 23 Fasteners?
Grade 23 titanium fasteners are selected where a combination of low weight, strength and corrosion resistance is required.
Key advantages include:
- High strength-to-weight ratio
- Lower density than many conventional steel alloys
- Good corrosion resistance
- Extra-low interstitial chemistry
- Good strength retention for demanding applications
- Suitable for specialized medical-material applications when the applicable specification is met
- Excellent choice for weight-sensitive assemblies
- Available in customized fastener configurations
Applications of Titanium Grade 23 Fasteners
Titanium Grade 23 Fasteners are used in applications where material performance and weight control are important. Depending on the applicable specification and certification requirements, these may include:
- Medical and surgical equipment
- Orthopedic and implant-related applications
- Aerospace components
- Precision engineering
- Chemical processing equipment
- Marine environments
- High-performance machinery
- Research and specialized engineering assemblies
ASTM F136 specifically covers wrought Ti-6Al-4V ELI for surgical implant applications, while other product standards apply to different forms and uses.
Titanium Grade 23 Fasteners Manufacturing & Quality
Ti-6Al-4V ELI Bolts Supplier in India
We are a Ti-6Al-4V ELI Bolts Supplier in India, offering Titanium Grade 23 bolts, screws, nuts, washers, threaded rods and stud bolts for specialized requirements.
We can support standard and customized orders based on drawings, dimensions, quantities and applicable specifications. Buyers can share their required diameter, length, thread type, fastener configuration, material standard and certification requirements for quotation.
Order Titanium Grade 23 Fasteners
Looking for Titanium Grade 23 Fasteners, ASTM F136 Titanium Screws, Ti-6Al-4V ELI Bolts or Grade 23 Titanium Threaded Rods?
Contact us with your required size, quantity, standard and application details. We can review the specification and provide a suitable Grade 23 titanium fastener solution.
FAQs About Titanium Grade 23 Fasteners
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