| Element | Content(%) |
|---|---|
| Ti | Remaining |
| Al | 5.5-6.5 |
| Sn | 1.75-2.25 |
| Zr | 3.5-4.5 |
| Mo | 5.5-6.5 |
| Si | ≤0.10 |
| O | ≤0.15 |
| Fe | ≤0.15 |
| C | ≤0.04 |
| N | ≤0.04 |
| H | ≤0.0125 |
| Y | ≤0.005 |
| Left each | ≤0.1 |
| Left total | ≤0.4 |
Ti-6Al-2Sn-4Zr-6Mo (Ti-6246) is a high-strength, near-alpha titanium alloy featuring excellent high-temperature strength (500–550°C). Designed for highly loaded components in aero-engines and airframe structures, it combines high-temperature strength with superior creep resistance. Ti-6246 is distinguished by its outstanding fatigue resistance and high-temperature stability, offering a reliable solution for demanding applications.
Oxidation resistance: Oxidation rate <0.1 mg/cm2/h in air at 500°C, with the formation of a stable Al2O3+TiO2 composite oxide film on the surface. Applications in aero-engines include high-pressure compressor disks, blades (offering a 30% weight reduction compared to Inconel 718), and turbine shafts (subjected to high torsional loads).
| Element | Content(%) |
|---|---|
| Ti | Remaining |
| Al | 5.5-6.5 |
| Sn | 1.75-2.25 |
| Zr | 3.5-4.5 |
| Mo | 5.5-6.5 |
| Si | ≤0.10 |
| O | ≤0.15 |
| Fe | ≤0.15 |
| C | ≤0.04 |
| N | ≤0.04 |
| H | ≤0.0125 |
| Y | ≤0.005 |
| Left each | ≤0.1 |
| Left total | ≤0.4 |
| Form | Nominal diameter or least distance between parallel sides | Tensile strength | Yield strength at 0.2% offset | Elongation in 50.8 mm or 4D (%) | Reduction of area (%) | ||
|---|---|---|---|---|---|---|---|
| mm | MPa | MPa | L | T | L | T | |
| Wire | Up to 12.70 inclusive | 1172 | 1103 | 10 | 10 | 20 | 15 |
| Bars | Over 12.70 up to 63.50 inclusive | 1172 | 1103 | 10 | 10 | 20 | 15 |
| Bars | Over 63.50 up to 76.20 inclusive | 1138 | 1069 | 8 | 9 | 15 | 12 |
| Forgings | Up to 76.20 inclusive | 1172 | 1103 | 10 | 10 | 20 | 15 |
| Rods and forgings | Over 76.20 up to 101.60 inclusive | 1103 | 1034 | 8 | 8 | 15 | 12 |
L = Longitudinal
T = Traverse