Ti Grade 5ELI-----
Titanium Alloy (Ti-6Al-4VELI) UNS R56401 (6% aluminum, 4% vanadium with extra low interstitial elements, ELI)
Wrought Titanium-6Aluminum-4Vanadium ELI (Extra Low Interstitial) Alloy for
Surgical Implant Applications UNS R56401
----Titanium alloy is used in surgical implants applications, because of its extra low level of interstitial elements obtained through a double-remelting in the VAR furnace.
In the case of medical applications, stringent user specifications require controlled microstructures and freedom from melt imperfections. The interstitial elements of iron and oxygen are carefully controlled to improve ductility and fracture toughness. Controlled interstitial element levels are designated ELI (extra low interstitials).
Chemical Composition (%) ASTM F136
|
Grade |
Carbon Max |
Oxygen Max |
Nitrogen Max |
Iron Max |
Hydrogen Max |
Aluminum Max |
Vanadium Max |
|
Grade 5ELI |
0.08 |
0.13 |
0.05 |
0.25 |
0.012 |
5.5-6.50 |
3.5-4.5 |
Annealed Mechanical Properties ASTM F136
|
Grade |
Dia (mm) |
Tensile Min (Mpa) |
Yield Min (Mpa) |
Elongation in 4D Min % |
|
Grade 5ELI |
<4.75mm |
860 |
795 |
10 |
|
4.75—44.45mm |
860 |
795 |
10 |
|
|
44.45mm—63.5mm |
825 |
760 |
8 |
|
|
63.5mm—101.6mm |
825 |
760 |
8 |