Customization: | Available |
---|---|
Type: | Titanium Bars |
Application: | Medical |
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Ti 6Al-4V ELI Titanium is the extra-low interstitial version of Ti 6Al-4V Titanium and its content is arrived at by the careful selection of ingot raw materials with lower specified limits on iron and the interstitial elements C and O. It has been the material of choice for many medical and dental applications due to its excellent biocompatibility, good fatigue strength, and low modulus. The ELI grade has superior damage tolerance (fracture toughness, fatigue crack growth rate) and better mechanical properties at cryogenic temperatures compared to standard grade Ti 6Al-4V Titanium. The high-purity alloy is also known as ASTM B348 Grade 23.
The chemical composition of grade 23 Ti 6Al 4V ELI Titanium alloy is outlined in the following table.
Element | Content |
Titanium, Ti | 88.09 - 91 |
Aluminum, Al | 5.5 - 6.5 |
Vanadium, V | 3.5 - 4.5 |
Iron, Fe | ≤ 0.25 |
Carbon, C | ≤ 0.080 |
Nitrogen, N | ≤ 0.030 |
Hydrogen, H | ≤ 0.0125 |
Other, each | ≤ 0.10 |
Other, total | ≤ 0.40 |
Grade | UNS | DIN | EN | AMS | ASTM | JIS | |
Ti 6Al 4V ELI |
UNS R56401 |
- |
AMS 4907
AMS 4931
AMS 4930
AMS 4956
|
ASTM F136
ASTM F467
ASTM F468
|
- |
The physical properties of grade 23 Ti 6Al 4V ELI Titanium alloy are tabulated below.
Properties | Metric | Imperial |
Density | 4.43 g/cm3 | 0.160 lb/in3 |
Melting point | 1604 - 1660°C | 2919 - 3020°F |
The following table shows mechanical properties of grade 23 Ti 6Al 4V ELI Titanium alloy.
Properties | Metric | Imperial |
Tensile strength | 860 MPa | 125000 psi |
Yield strength | 790 MPa | 115000 psi |
Poisson's ratio | 0.342 | 0.342 |
Elastic modulus | 113.8 GPa | 16510 ksi |
Shear modulus | 44.0 GPa | 6380 ksi |
Elongation at break | 15% | 15% |
Hardness, Brinell | 326 | 326 |
Hardness, Knoop | 354 | 354 |
Hardness, Rockwell C | 35 | 35 |
Hardness, Vickers | 341 | 341 |
The thermal properties of grade 23 Ti 6Al 4V ELI Titanium alloy are tabulated below.
Properties | Metric | Imperial |
Thermal expansion co-efficient (@20-100°C/68-212°F) | 8.60 µm/m°C | 4.78 µin/in°F |
Thermal conductivity | 6.70 W/mK | 46.5 BTU in/hr.ft².°F |