ISO 5832-3 Ti6Al4V Titanium Alloy Bar for Surgical Implant
- Grade 5, Ti6Al4V
- Biocompatibility
- High Strength and Fatigue Resistance
- Corrosion Resistance
- Lightweight
- Good Machinability and Fabricability
Features
ISO 5832-3 Ti6Al4V Titanium Alloy Bar for Surgical Implant
Chemical composition (wt.%) of ISO 5832-3 Ti6Al4V Titanium Alloy Bar for Surgical Implant
| Element | Compositional limits (% (m/m)) |
| Aluminium | 5.5 to 6.75 |
| Vanadium | 3.5 to 4.5 |
| Iron | 0.3 max. |
| Oxygen | 0.2 max. |
| Carbon | 0.08 max. |
| Nitrogen | 0.05 max. |
| Hydrogen | 0.015 max. (Except for billets, for which the maximum hydrogen content shall be 0.010 % (m/m)) |
| Titanium | Balance |
Note: A grade with more restrictive limits of oxygen and iron is known under the term “extra low interstitials” (ELI). Commercially available ELI material can also be ordered using this part of ISO 5832. For exact compositional limits of the ELI grade, refer to ASTM F136 (UNS R54601)
Mechanical properties of wrought ISO 5832-3 Ti6Al4V Titanium Alloy Bar for Surgical Implant in annealed condition
| Form of alloy | Tensile strength Rm min (MPa) | Proof stress of nonproportional elongation Rp0,2 min (MPa) | Percentage elongation after fracture A min | Mandrel diameter for bend test |
| Sheet and strip | 860 | 780 | 8 | 10 x t |
| Bar | 860 | 780 | 10 | not applicable |
Notes:
- Original gauge length L0 equal to (5.65 * √So) or 50 mm, where So is the original cross-sectional area in square millimetres. The original gauge length chosen for testing shall be reported with the test results.
- t is the thickness of the sheet or strip.
- Maximum diameter or thickness is equal to 75 mm.
Mechanical Properties Harmonization for ELI grade (ISO 5832-3 and ASTM F136-13)
| ISO + ASTM specification | Material shape | Material size | UTS (MPa) | YS (MPa) | A (%) | Z (%) | Bend test mandrel diameter |
| ISO 5832-3 + ASTM F136-13 | Bar | d < 4.75 | ≥2860 | ≥2795 | ≥10 | — | — |
| 4.75 ≤ d < 44.45 | ≥2860 | ≥2795 | ≥10 | ≥25 | — | ||
| 44.45 ≤ d < 63.50 | ≥2860 | ≥2780 | ≥10 | ≥20 | — | ||
| 63.50 ≤ d ≤ 75a | ≥2860 | ≥2780 | ≥10 | ≥15 | — | ||
| Sheet and strip | t < 4.75 | ≥2860 | ≥2795 | ≥10 | — | 10 x t | |
| 4.75 ≤ t < 4.76 | ≥2860 | ≥2795 | ≥10 | ≥25 | 10 x t | ||
| 4.76 ≤ t < 44.45 | ≥2860 | ≥2795 | ≥10 | ≥25 | — | ||
| 44.45 ≤ t < 63.50 | ≥2860 | ≥2780 | ≥8 | ≥20 | — | ||
| 63.50 ≤ t ≤ 75a | ≥2860 | ≥2780 | ≥8 | ≥15 | — |
Mechanical Properties Harmonization for non-ELI grade (ISO 5832-3 and ASTM F1472-14)
| ISO + ASTM specification | Material shape | Material size | UTS (MPa) | YS (MPa) | A (%) | Z (%) | Bend test mandrel diameter |
| ISO 5832-3 + ASTM F1472-14 | Bar | d < 50 | ≥2930 | ≥2860 | ≥10 | ≥25 | — |
| 50 ≤ d ≤ 75a | ≥2895 | ≥2825 | ≥10 | ≥25 | — | ||
| Sheet and Strip | t < 0.2 | ≥2924 | ≥2869 | — | — | 10 x t | |
| 0.2 ≤ t < 0.6 | ≥2924 | ≥2869 | ≥6 | — | 10 x t | ||
| 0.6 ≤ t < 1.6 | ≥2924 | ≥2869 | ≥8 | — | 10 x t | ||
| 1.6 ≤ t < 4.76 | ≥2924 | ≥2869 | ≥10 | — | 10 x t | ||
| 4.76 ≤ t ≤ 75a | ≥2895 | ≥2825 | ≥10 | ≥20 | — |
Technical Specifications
| Specification | Value |
| Standard | ISO 5832-3 Ti6Al4V Titanium Alloy Bar for Surgical Implant |
| Grade | Grade 5, Ti6AL4V |
| Type | Alloy Bar, Sheet, Plate |
| Density | 4.51g/cm³ |
| Dimension | Bar—Round bars and flats from 5.50 to 94.0 mm [0.218 to 3.70 in.] in diameter or thickness (other sizes or shapes by special order). |
| Sheet—Any product 0.188 in. (4.76 mm) and under in thickness and 24 in. (610 mm) or more in width. | |
| Plate—Any product 5.50 up to 94.0 mm [0.218 to 3.70 in.] in thickness, with a width equal to or greater than five times the thickness. | |
| Inspection Certificate | EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection) |
| Tests | Chemical Composition, Microstructure Examination: Bar ISO 20160, Sheet & Strip EN 3114-003, Tensile Test ISO 6892-1, 105° Bending Test ISO 7438 |
Key Features
Biocompatibility: Ti6Al4V exhibits good biocompatibility, meaning it is non-toxic and generally well-tolerated by the body, minimizing the risk of adverse reactions or implant rejection.
High Strength and Fatigue Resistance: Ensuring the implant can withstand the stresses and strains of daily activities without fracturing or failing.
Corrosion Resistance: It is extremely resistant to corrosion within the body’s physiological environment, preventing degradation and ensuring long-term performance.
Lightweight: Ti6Al4V is lightweight compared to other metallic implant materials, which can benefit patients regarding comfort and mobility.
Machinability and Fabricability: The alloy can be readily machined and fabricated into various shapes and sizes required for different implant designs.
Packing
Packed in plywood boxes.
Application
Joint replacements: Ti6Al4V is commonly used for hip, knee, shoulder, and other joint replacements due to its strength, wear resistance, and biocompatibility.
Bone screws and plates: Employed for fracture fixation and stabilization of bone fragments.
Spinal implants: Used in spinal fusion and stabilization devices.
Trauma implants: Applied in various trauma applications for bone repair and reconstruction.
Dental implants: Due to their biocompatibility and osseointegration properties, they serve as the base for dental prosthetics like crowns and bridges.
Abutments: Connect the implant to the prosthetic.
Stents: Utilized in stents for opening blocked arteries and restoring blood flow.
Heart valve components: These are employed in specific heart valve designs due to their strength and biocompatibility.
