Ti-6Al-2Sn-4Zr-2Mo
UNS R54620
Description
Ti-6Al-2Sn-4Zr-2Mo, also known as Ti 6-2-4-2, is a near alpha titanium alloy mixed with elements like zirconium, molybdenum, and aluminum. Near-alpha alloys contain a small amount of ductile beta-phase. Ti-6Al-2Sn-4Zr-2Mo is known for its high strength and excellent corrosion resistance. And it also has excellent stability and creep resistance at high temperatures (as high as 550 °C). These characteristics make it suitable for high temperature applications. It often used in the aerospace industry for creating high-temperature jet engines and the automotive industry to create high performance automotive valves.
Chemical Component
| Ti | Fe | O | C | N | Al | Sn | Zr | Mo | Si | Others |
|---|---|---|---|---|---|---|---|---|---|---|
| Balance | 0.25% max | 0.15% max | 0.08% max | 0.010-0.0125% | 5.50-6.50% | 1.80-2.20% | 3.60-4.40% | 1.80-2.20% | 0.06-0.13% | 0.10% max (each); 0.40% max (total) |
Basic Information
| Items | Ti-6Al-2Sn-4Zr-2Mo |
|---|---|
| Catalog | ACAM-Ti-A002 |
| Density | 0.164 lbs/in3 (4.54 g/cm3) |
| Electrical Resistivity | 72.8-74.8 µ½·in (1.85-1.90 µ½·m) |
| Specific Heat Capacity | 0.120 BTU/lb-°F (0.502 J/g-°F) |
| Thermal Conductivity | 48.0 BTU-in/hr-ft2-°F (6.92 W/m-K) |
| Mean Coefficient of Thermal Expansion | 32.0-212 °F (0-100 °C): 4.28 µin/in-°F (7.70 µm/m-°C) |
| Modulus of Elasticity | 16.5 x 103 ksi (11.4 x 103 MPa) in tension |
| Magnetic Permeability | Non-magnetic |
| Melting Range | 2890-3120 °F (1588-1716 °C) |
Material Forms
Alfa Chemistry offers Ti-6Al-2Sn-4Zr-2Mo in a variety of forms, including Strip, Coil, Foil and Wire.
Typical Mechanical Properties
| Condition | Ultimate Tensile Strength | Yield Strength (0.2% offset) | Elongation |
|---|---|---|---|
| Annealed (at room temperature) | 135 ksi (930 MPa) | 125 ksi (862 MPa) | 8% min |
Additional Properties
Corrosion Resistance: Refer to NACE (National Associate of Corrosion Engineers) for recommendations.
Welding: For best results refer to: SSINA's "Welding of Stainless Steels and Other Joining Methods".
Applications
Ti-6Al-2Sn-4Zr-2Mo can be used in a variety of applications, including:
- High-temp jet engines
- Gas turbine compressor components (Blades, Discs, Spacers and Seals)
- High performance automotive valves
- Aircraft brake parts (e.g. Boeing 787)
- Sheet metal parts in afterburners and hot airframe sections
- High performance racing engine components
* Technical data included herein should be used as a guideline only, and should not be construed as maximum or minimum values for specification or for final design, or for a particular use or application. The data may be revised anytime without notice.
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