Ti-4Al-4Mo-2Sn-0.5Si (TIMETAL 550) Annealed vs Ti-5.5Al-3.5Sn-3Zr-1Nb-0.25Mo-0.3Si (TIMETAL 829) Annealed
Property comparison of Ti-4Al-4Mo-2Sn-0.5Si (TIMETAL 550) Annealed and Ti-5.5Al-3.5Sn-3Zr-1Nb-0.25Mo-0.3Si (TIMETAL 829) Annealed, both titanium alloy.
| Property | Ti-4Al-4Mo-2Sn-0.5Si (TIMETAL 550) Annealed | Ti-5.5Al-3.5Sn-3Zr-1Nb-0.25Mo-0.3Si (TIMETAL 829) Annealed | Difference |
|---|---|---|---|
| Yield strength | 960 MPa | 820 MPa | -15% |
| Tensile strength | 1,100 MPa | 930 MPa | -15% |
| Elongation | 9 % | 9 % | 0% |
| Elastic modulus | 115,000 MPa | 120,000 MPa | +4% |
| Density | 4,600 kg/m³ | 4,540 kg/m³ | -1% |
| Thermal conductivity | 7.52 W/m·K | 6.9 W/m·K | -8% |
| Coefficient of thermal expansion | 0.000009 1/K | 0.000009 1/K | +7% |
| Melting point | 975 °C | 1,015 °C | +4% |
| Reduction in area | 20 % | 15 % | -25% |
Difference is Ti-5.5Al-3.5Sn-3Zr-1Nb-0.25Mo-0.3Si (TIMETAL 829) Annealed relative to Ti-4Al-4Mo-2Sn-0.5Si (TIMETAL 550) Annealed. Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- grade
- Ti-4Al-4Mo-2Sn-0.5Si
- standard
- BS TA45 / BS TA47
- heat treatment
- Annealed
- grade
- Ti-5.5Al-3.5Sn-3Zr-1Nb-0.25Mo-0.3Si
- standard
- BS TA59 / IMI 829
- heat treatment
- Annealed
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