Aug 26 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Introduction
Titanium alloys are metals containing a combination of titanium and other chemical elements such as vanadium, zirconium, palladium, and chromium. They are lightweight and corrosion resistant. Grade 20 Ti-3Al-8V-6Cr-4Zr-4Mo-0.05Pd alloy is a beta wrought alloy.
The following sections will discuss in detail about grade 20 Ti-3Al-8V-6Cr-4Zr-4Mo-0.05Pd alloy.
Chemical Composition
The chemical composition of grade 20 Ti-3Al-8V-6Cr-4Zr-4Mo-0.05Pd alloy is outlined in the following table.
|
Element |
Content (%) |
|
Titanium, Ti |
71 - 76.96 |
|
Vanadium, V |
7.5 - 8.5 |
|
Chromium, Cr |
5.5 - 6.5 |
|
Zirconium, Zr |
3.5 - 4.5 |
|
Molybdenum, Mo |
3.5 - 4.5 |
|
Aluminum, Al |
3-4 |
|
Iron, Fe |
≤ 0.30 |
|
Oxygen, O |
≤ 0.12 |
|
Carbon, C |
≤ 0.050 |
|
Palladium, Pd |
0.040 - 0.080 |
|
Nitrogen, N |
≤ 0.030 |
|
Hydrogen, H |
≤ 0.020 |
|
Remainder, each |
≤ 0.15 |
|
Remainder, total |
≤ 0.40 |
Physical Properties
The physical properties of grade 20 Ti-3Al-8V-6Cr-4Zr-4Mo-0.05Pd alloy are tabulated below.
|
Properties |
Metric |
Imperial |
|
Density |
4.81 g/cm³ |
0.174 lb/in³ |
Mechanical Properties
The following table shows mechanical properties of grade 20 Ti-3Al-8V-6Cr-4Zr-4Mo-0.05Pd alloy.
|
Properties |
Metric |
Imperial |
|
Tensile strength |
1172 - 1248 MPa |
170000 - 181000 psi |
|
Yield strength |
1104 - 1152 MPa |
160100 - 167100 psi |
|
Elastic modulus |
≥ 103 GPa |
≥ 14900 ksi |
|
Elongation at break |
6.0 - 10% |
6.0 - 10% |