ASTM F136 Ti6Al4V
Grade: Ti6Al4V ELI
Strip: Thickness≤4.76mm x Width≤610mm
Sheet: Thickness≤4.76mm x Width≥610mm
Plate: Thickness:4.76 - 101.6mm x Width≥254mm
Bar: Dia.4.76-101.6mm
Wire: Dia.≤4.76mm
ASTM F136 Ti6Al4V ELI – Surgical-Grade Titanium Alloy
ASTM F136 Ti6Al4V ELI (Extra Low Interstitial) titanium with stringent tolerance control and complete biological traceability is supplied by LINHUI Titanium. Our Grade Ti6Al4V ELI strips are ≤4.76mm × width ≤610mm, sheets are ≤4.76mm × width ≥610mm, plates are 4.76–101.6mm thick × width ≥254mm, bars are 4.76–101.6mm in diameter, and wires are ≤4.76mm in diameter.
Our material ensures exceptional ductility for demanding surgical applications while eliminating brittle fracture hazards with an oxygen content regulated below 0.13%. Every batch has full heat number traceability and EN 10204 3.1 certification.
Key Features & Benefits
Improved Biocompatibility
It is safe for long-term implantation inside the human body since oxygen is limited to less than 0.13%, which minimizes cytotoxicity and allergic reactions.
Increased Resistance to Fracture
In comparison to ordinary Grade 5, Extra Low Interstitial chemistry increases ductility by 15–20%, averting catastrophic failure under cyclic physiological loads.
Non-Magnetic and MRI-Safe
Patient safety during MRI scans is guaranteed by zero ferromagnetic characteristics, which prevent implant displacement and image distortion.
Accurate Cold Rolling
For high-volume CNC machining and press operations, a thickness tolerance of ±0.05mm ensures constant forming behavior.
Technical Specifications
Chemical Composition (ASTM F136 Standard)
| Element | Ti | Al | V | Fe (max) | O (max) | C (max) | N (max) | H (max) | Y (max) |
|---|---|---|---|---|---|---|---|---|---|
| Weight % | Bal. | 5.5-6.5 | 3.5-4.5 | 0.25 | 0.13 | 0.08 | 0.05 | 0.012 | 0.005 |
Note: ELI (Extra Low Interstitial) grade ensures enhanced ductility & fracture toughness.
Mechanical Properties
| Property | Value | Test Standard |
|---|---|---|
| Tensile Strength | 860-965 MPa | ASTM E8 |
| Yield Strength (0.2% offset) | 795-875 MPa | ASTM E8 |
| Elongation (%) | ≥ 10% | ASTM E8 |
| Reduction of Area (%) | ≥ 25% | ASTM E8 |
| Hardness (Rockwell C) | 32-36 HRC | ASTM E18 |
| Modulus of Elasticity | 114 GPa | ASTM E111 |
| Fatigue Strength (10⁷ cycles) | 500 MPa | ASTM E466 |
Physical Properties
-
Density: 4.43 g/cm³
-
Melting Point: 1604-1660°C
-
Thermal Conductivity: 6.7 W/m·K
-
Electrical Resistivity: 1.7 µΩ·m
Manufacturing Process
Vacuum Arc Remelting (VAR) ensures a uniform microstructure throughout the billet by triple-melting under high vacuum to remove impurities and porosity.
Regulated Hot Forging
For fatigue resistance, the fine equiaxed alpha-beta grain structure must be maintained by forging below the beta transus temperature (940°C).
Accurate Cold Rolling
While improving mechanical qualities, multi-pass rolling combined with annealing cycles yields uniform thickness and surface polish.
Annealing for Stress Reduction
Heat-treated at 650–760°C to eliminate any remaining tensions and avoid warping in later machining processes.
Quality Inspection
Analysis of Chemicals (ASTM E1941)
Interstitial content (O, N, and H) is verified by inert gas fusion to ensure ELI compliance and avoid brittleness.
Evaluation of Microstructure (ASTM E3)
Metallographic analysis at 200× magnification guarantees consistent equiaxed grain structure rated A1–A9 and zero Alpha Case.
AMS 2631 Class A1 Ultrasonic Testing
Subsurface voids or inclusions that might cause fatigue cracks under cyclic loading are found via 100% volumetric inspection.
ASTM E8 Mechanical Validation
Tensile testing verifies that elongation, yield strength, and ultimate tensile strength satisfy surgical implant specifications.
Applications Of ASTM F136 Ti6Al4V
Implants for Orthopedics
The modulus of hip stems, knee replacements, spinal cages, and trauma plates is closer to bone, which lessens the effects of stress shielding.
Implants for Dentistry
Root-form dental implants and abutments need to be able to osseointegrate and resist corrosion in oral fluids.
Surgical Tools
Autoclave sterilization resistance is required for scalpel handles, forceps, and retractors without sacrificing edge retention.
Heart-Related Devices
Its long-term biostability and thromboresistant surface are used in pacemaker housings and heart valve components.
Export Markets
More than 40 nations have received ASTM F136 Ti6Al4V ELI material from LINHUI Titanium:
North America: Canada and the United States
Europe: Switzerland, Germany, France, and the United Kingdom
Asia-Pacific: Australia, Singapore, South Korea, Japan
Middle East: Israel, Saudi Arabia, the United Arab Emirates
Medical device OEMs, contract manufacturers, and research institutions in need of raw materials verified by ISO 13485 and FDA compliance are among our clientele.
Why Choose Us
Mill-Direct Pricing
Factory ownership eliminates middlemen, reducing your material cost by 12–18% while maintaining premium quality control.
Full Traceability
Every coil includes heat number, EN 10204 3.1 certificate, and lot-specific test reports for complete audit trail compliance.
Rapid Response
Quotations within 4 hours, drawing review in 24 hours, and stock shipments in 3–7 days keep your production schedule on track.
Flexible MOQ
Trial orders from 100 kg supported, enabling R&D prototyping without committing to full-ton purchases.
Engineering Support
In-house metallurgists provide material selection guidance, passivation protocols, and machining parameter optimization.
| Comparison Factor | ASTM F136 Ti6Al4V (Grade 5 ELI) | Standard Grade 5 (Ti6Al4V) | Grade 2 (CP Titanium) |
|---|---|---|---|
| Strength | ⭐⭐⭐⭐⭐ (Highest) | ⭐⭐⭐⭐ | ⭐⭐ |
| Biocompatibility | ⭐⭐⭐⭐⭐ (Implant-grade) | ⭐⭐⭐ (Limited medical use) | ⭐⭐⭐⭐ |
| Corrosion Resistance | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ |
| Cost | $$$ (Premium) | $$ (Mid-range) | $ (Most economical) |
| Best For | Critical medical/aerospace | General engineering | Non-load-bearing medical |
Packaging & Shipping
Inner Protection
Each piece individually wrapped in PE film, then bundled with foam separators to prevent surface scratches during transit.
Outer Packaging
Plywood cases or steel crates with fumigation certificates for international shipping, compliant with ISPM 15 standards.
Logistics Options
Air freight for urgent samples (3–5 days), sea freight for bulk orders (20–35 days), with door-to-door service available.
Documentation
Commercial invoice, packing list, Certificate of Origin, third-party inspection reports (SGS/BV/TÜV) provided upon request.
FAQ
Q: What sets ASTM B348 Grade 23 apart from ASTM F136?
A: While B348 is used for broad industrial applications, ASTM F136 requires more stringent microstructure controls, defect limitations, and testing frequencies specifically for surgical implants.
Q: Is it safe to scan this substance using an MRI?
A: Indeed, during magnetic resonance imaging, it is non-ferromagnetic, causing very few artifacts and providing no displacement risk.
Q: What makes ELI so important for surgical screws?
A: Reduced iron and oxygen content increases ductility by 15%, keeping screw heads from breaking when surgeons insert them at high torque.
Q: After machining, is passivation necessary?
A: In order to eliminate free iron pollution and maximize the corrosion resistance of the natural oxide layer, ASTM F86 suggests passivation.
Q: Is 3D printing possible with this?
A: No, wrought material is governed by ASTM F136. ASTM F3001 or F2924 is needed for additive manufacturing, but the chemistry is the same.
Request a Quote
Need certified ASTM F136 Ti6Al4V ELI material with full traceability for your next surgical implant project?
Contact our engineering team at linhui@lhtitanium.com for technical datasheets, pricing, and lead times tailored to your specifications.
