Ti-6246 (Ti-6Al-2Sn-4Zr-6Mo) is a high-strength α+β-type titanium alloy, designated UNS R56260.
This alloy improves strength, thermal stability, hardenability, and high-temperature creep resistance through the addition of Al, Sn, Zr, and Mo, exhibiting higher mechanical strength compared to Ti-6242. Ti-6246 is primarily intended for use in aircraft engines and high-temperature structural components. Relevant studies show that this alloy, when used in compressor discs and fan components for aircraft engines, can operate under sustained loads at approximately 400°C and under short-term loads at even higher temperatures.
Ti-6246 bars are typically supplied in the heat-treated and aged (STA) condition. AMS 4981 is the material specification for heat treatment and precipitation hardening of this alloy in the form of bars, wire, and forgings.
Ti-6246 is used in compressor discs and fan components for aircraft engines, as it offers high strength, impact toughness, and resistance to creep at high temperatures.
Applications: engine components, structural components, components subjected to high loads, rotating components.
Suitable for: compressor components, rotating parts, shafts, and high-temperature structural components.
Ti-6Al-2Sn-4Zr-6Mo is also used in oil and gas equipment, such as high-strength components like wellheads and pressure vessels.
Ti-6246 can also be used for high-temperature, high-strength components in deep-well drilling tools.
| Diameter (mm) | Length (customizable) |
|---|---|
| Ø6mm | Customized according to customer requirements |
| Ø8mm | Customized according to customer requirements |
| Ø10 mm | Customized according to customer requirements |
| Ø12.7 mm | Customized according to customer requirements |
| Ø15mm | Customized according to customer requirements |
| Ø20 mm | Customized according to customer requirements |
| Product form | Nominal diameter or minimum distance between parallel sides (mm) | Tensile strength (MPa) | Yield strength at 0.2% offset (MPa) | Elongation (50.8 mm or 4D gauge length) (%) L | Elongation (50.8 mm or 4D gauge length) (%) T | Reduction of area (%) L | Reduction of area (%) T |
|---|---|---|---|---|---|---|---|
| Wire | Up to and including 12.70 | 1172 | 1103 | 10 | 8 | 20 | 15 |
| Rods/Bars | Over 12.70 up to and including 63.50 | 1172 | 1103 | 10 | 8 | 20 | 15 |
| Rods/Bars | Over 63.50 up to and including 76.20 | 1138 | 1069 | 8 | 6 | 15 | 12 |
| Forgings | Up to and including 76.20 | 1172 | 1103 | 10 | 8 | 20 | 15 |
| Rods/Bars and forgings | Over 76.20 up to and including 101.60 | 1103 | 1034 | 8 | 6 | 15 | 12 |
L = Longitudinal direction
T = Transverse direction
