ASTM F560 Unalloyed Tantalum for Surgical Implant
- Grade: UNS R05200, UNS R05400
- Plate: Thickness 4.75-10mm x Width 150-1200mm x Length 200-3000mm
- Sheet: Thickness 0.13-4.75mm x Width 150-1200mm x Length 150-3000mm
- Strip: Thickness 0.13-4.75mm x Width 150-1200mm x Coil
- Bar Diameter: 3.15-63.5mm in Round, Hexagonal, Octagonal
- Wire Diameter: 1.00-3.15mm
Features
ASTM F560 Unalloyed Tantalum for Surgical Implants
Grade: UNS R05200, UNS R05400
Chemical Composition (wt.%)
| Element | Compositions (Max % Mass/Mass) | |
| R05200 (Electron-beam or vacuum-arc cast tantalum) | R05400 (Sintered tantalum) | |
| Carbon | 0.01 | 0.01 |
| Oxygen | 0.015 | 0.03 |
| Nitrogen | 0.01 | 0.01 |
| Hydrogen | 0.0015 | 0.0015 |
| Niobium | 0.1 | 0.1 |
| Iron | 0.01 | 0.01 |
| Titanium | 0.01 | 0.01 |
| Tungsten | 0.05 | 0.05 |
| Molybdenum | 0.02 | 0.02 |
| Silicon | 0.005 | 0.005 |
| Nickel | 0.01 | 0.01 |
| Tantalum | Balance | Balance |
Additional Chemical Requirements for Finished Product (When Specified by the Purchaser)
| Element | Compositions (Max % Mass/Mass) | |
| R05200 | R05400 | |
| Carbon | 0.02 | 0.02 |
| Oxygen | 0.025 | 0.035 |
| Nitrogen | 0.01 | 0.01 |
| Hydrogen | 0.0015 | 0.0015 |
Mechanical Properties (Flat Mill Products)
| Condition | Thickness (mm [in.]) | Minimum Ultimate Tensile Strength (MPa [psi]) | Minimum Yield Strength (0.2% offset) (MPa [psi]) | Minimum Elongation in 25 mm [1 in.] (%) |
| Cold worked | All | 520 [75,000] | 345 [50,000] | 2 |
| Stress relieved | 0.13 to 0.26 [0.0051 to 0.01] | 380 [55,000] | 240 [35,000] | 5 |
| Stress relieved | Over 0.26 [0.01] | 380 [55,000] | 240 [35,000] | 10 |
| Annealed | 0.13 to 0.26 [0.0051 to 0.01] | 210 [30,000] | 140 [20,000] | 20 |
| Annealed | Over 0.26 to 0.5 [0.010 to 0.020] | 210 [30,000] | 140 [20,000] | 25 |
| Annealed | Over 0.51 [0.020] | 210 [30,000] | 140 [20,000] | 30 |
Mechanical Properties (Bar and Wire Products)
| Condition | Diameter (mm [in.]) | Minimum Ultimate Tensile Strength (MPa [psi]) | Minimum Yield Strength (0.2% offset) (MPa [psi]) | Minimum Elongation, %A |
| Cold Worked | All | 480 [70,000] | 345 [50,000] | 1 |
| Annealed | 0.12 to under 0.25 [0.005 to 0.0099] | 240 [35,000] | … | 8 |
| Annealed | 0.25 to 0.38 [0.010 to 0.0149] | 240 [35,000] | … | 10 |
| Annealed | Over 0.38 to 0.63 [0.015 to 0.0249] | 240 [35,000] | … | 15 |
| Annealed | over 3.14 to 63.5 [0.125 to 2.5] | 170 [25,000] | 140 [20 000] | 25 |
Technical Specifications
| Specification | Value |
| Standard | ASTM F560 Unalloyed Tantalum for Surgical Implant Applications |
| Grade | UNS R05200, UNS R05400 |
| Finish | Clean, bright finish, free of defects and surface imperfections |
| Forms | Plate, Sheet, Strip, Bar, Wire |
| Size | Plate: Thickness 4.75-10mm x Width 150-1200mm x Length 200-3000mm Sheet: Thickness 0.13-4.75mm x Width 150-1200mm x Length 150-3000mm Strip: Thickness 0.13-4.75mm x Width 150-1200mm x Coil Bar Diameter: 3.15-63.5mm in Round, Hexagonal, Octagonal Wire Diameter: 1.00-3.15mm |
| Inspection Certificate | EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection) |
| Tests | Chemical Analysis, Tensile Test, Hardness Test, and Microstructural examination |
Key Properties
Biocompatibility: Tantalum is highly biocompatible, meaning it does not cause adverse reactions when implanted in the human body. This property is critical for surgical implants that remain in the body for extended periods.
Corrosion Resistance: Tantalum exhibits excellent corrosion resistance, even in aggressive physiological environments. This ensures the longevity and durability of implants made from this material.
Radiopacity: Tantalum is radiopaque, which means it is visible under X-rays. This property is beneficial for post-operative imaging and monitoring of the implant’s position and condition within the body.
Mechanical Properties: The specific mechanical properties of tantalum, as defined under ASTM F560, including its tensile strength, yield strength, and elongation, ensure that the material can withstand the physical stresses encountered within the human body.
Packing
Packed in plywood boxes or on crates, covered with seaworthy bags.
Application
Orthopaedic Implants: Tantalum is used in orthopaedic applications such as bone repair and replacement surgeries. Its high biocompatibility and mechanical strength make it suitable for joint replacement components, bone fixation devices, and spinal implants.
Cardiovascular Devices: In cardiovascular applications, tantalum’s corrosion resistance and biocompatibility allow its use in devices like stents, occluders for congenital heart defects, and pacemaker electrodes. Tantalum ensures the longevity and reliability of these critical implants.
Neurosurgery: Tantalum can be used for cranial repair plates and devices for nerve repair and regeneration. Its radiopacity is particularly advantageous in neurosurgical applications for implant placement and integrity monitoring.
Soft Tissue Implants: Beyond demanding tissue applications, tantalum’s flexibility, when drawn into fine wires or mesh, makes it suitable for soft tissue implants, including mesh for hernia repair and sutures for soft tissue approximation.
