ASTM F136 Ti6Al4V ELI Titanium Alloy Bar for Surgical Implant

  1. Ti6Al4V ELI
  2. Strip: T≤4.76mm x W≤610mm
  3. Sheet: T≤4.76mm x W≥610mm
  4. Plate: T:4.76-101.6mm x W≥254mm
  5. Round Bar Dia: 4.76-101.6mm
  6. Wire Dia:≤4.76mm

Features

ASTM F136 Wrought Ti6Al4V ELI (UNS R56401) Titanium Alloy Bar for surgical implant

Chemical Composition of ASTM F136 Ti6Al4V ELI Titanium Alloy Bar for Surgical Implant (wt.%)

Element Composition % (mass/mass)
Nitrogen max 0.05
Carbon max 0.08
Hydrogen max 0.012 (up to 0.0150% for material 0.032 in. and under)
Iron max 0.25
Oxygen max 0.13
Aluminum 5.5–6.5
Vanadium 3.5–4.5
Titanium balance (determined by difference)

Mechanical Properties of ASTM F136 Ti6Al4V ELI Titanium Alloy Bar, Wire, and Forgings, Annealed

Nominal Diameter or Distance Between Parallel Sides Tensile Strength

min psi (MPa)

Yield Strength (0.2 % offset) min psi (MPa) Elongation in 4D or 4W min % Reduction of Area min %
Under 0.187 in. thickness or diameter 125,000 (860) 115,000 (795) 10
0.187 in. to under 1.75 in. incl. 125,000 (860) 115,000 (795) 10 (25 for transverse)
1.75 in. to under 2.50 in. incl. 120,000 (825) 110,000 (760) 8 (20 for transverse)
2.50 in. to 4.00 in. incl. 120,000 (825) 110,000 (760) 8 (15 for transverse)

Transverse requirements apply only to products from which a tensile specimen not less than 2.50 in. in length can be obtained.

Mechanical Properties of ASTM F136 Ti6Al4V ELI Titanium Alloy Sheet, Strip, and Plate, Annealed

Thickness Range Tensile Strength

min psi (MPa)

Yield Strength (0.2 % offset) min psi (MPa) Elongation in 2 in. (50 mm) min % Bend Test Mandrel Diameter
Under 0.187 in. 125,000 (860) 115,000 (795) 10 9T for under 0.070 in. thickness, 10T for 0.070 to 0.1875 in.
0.187 in. to under 1.75 in. incl. 125,000 (860) 115,000 (795) 10
1.75 in. to under 2.50 in. incl. 120,000 (825) 110,000 (760) 8
2.50 in. to 4.00 in. incl. 120,000 (825) 110,000 (760) 8

Transverse requirements for elongation and bend tests apply only to products from which a tensile specimen not less than 2.50 in. in length can be obtained.

Technical Specifications

Specification Value
Standard ASTM F136 Wrought Ti-6Al-4V ELI (Extra Low Interstitial) Titanium Alloy Bar for Surgical Implant Applications (UNS R56401)
Grade Ti6Al4V ELI, Grade 23, UNS R56401
Condition Annealed or Cold-worked
Type Alloy Strip, Sheet, Plate, Bar, Forging Bar, Wire, etc
Dimension Strip—Any product under 0.1875 in. (4.76 mm) in thickness and under 24 in. (610 mm) wide.
Sheet—Any product under 0.1875 in. (4.76 mm) in thickness and 24 in. (610 mm) or more in width
Plate—Any product 0.1875 in. (4.76 mm) thick and over and 10 in. (254 mm) wide and over, with widths greater than five times thickness. Plate up to 4.00 in. (101.60 mm), thick inclusive is covered by this specification
Bar—Round bars and flats from 0.1875 in. (4.76 mm) to 4.00 in. (101.60 mm) in diameter or thickness (other sizes and shapes by special order).
Wire—Rounds, flats, or other shapes less than 0.1875 in. (4.76 mm) in diameter.
Density 4.51g/cm³
Inspection Certificate EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection)
Tests Chemical Composition, Mechanical Properties

Key Properties

Biocompatibility: The alloy exhibits excellent biocompatibility, meaning it is non-toxic and does not trigger adverse reactions within the body. This is crucial for implant materials to avoid rejection or inflammation.
Corrosion Resistance: Titanium’s inherent corrosion resistance ensures that the implant remains stable and functional over extended periods in the body’s corrosive environment.
High Strength-to-Weight Ratio: Despite being lightweight, the alloy maintains high strength, making it suitable for load-bearing applications like bone plates and screws.
Low Modulus of Elasticity: The alloy’s modulus of elasticity is closer to bone than other metals. This reduces stress shielding, where the implant bears too much load, weakening bone.

Packing

Packed in plywood boxes.

Applications in Surgical Implants

Orthopedic Implants: Bone plates and screws for fracture fixation, Intramedullary rods for stabilizing long bone fractures, Hip and knee joint replacements, Spinal fusion devices
Dental Implants: Dental implants for replacing missing teeth, Orthodontic wires and brackets
Cardiovascular Implants: Pacemaker cases, Stents to keep blood vessels open
Neurosurgical Implants: Cranial plates for repairing skull defects

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