Titanium alloy Ti6246(Ti-6Al-2Sn-4Zr-6Mo) is a kind of high-temperature alloy, which contains Mo element, Ti6246 titanium alloy comprehensive performance is very good. Its low cycle fatigue strength after solution aging and double annealing is higher than that of titanium alloy GR5(Ti6Al4V), and it also has higher tensile and mechanical properties. The high temperature properties of Ti6246 are often used in compressor discs and blades of aerospace titanium alloys.

1.Ti6Al2Sn4Zr6Mo Chemical Elements

2.Physical properties of Ti6Al2Sn4Zr6Mo titanium alloy

• Density: 0.160 lb/in3
• Thermal conductivity: 4.00 Btu • hr/ft2 • hr°F
• Thermal conductivity: 32-212°F 4.3×10-6 in/in°F
• Elastic modulus: 16.5×106 psi

3.Characteristics of Ti6Al2Sn4Zr6Mo titanium alloy

1. Ti6246 titanium alloy by adding Mo element, so as to stabilize the β phase of TC19(Ti-6246) titanium alloy to improve the high temperature tensile properties. Among them, Ti6Al4V, the most commonly used blade for aerospace aircraft, has good tensile properties, high creep strength and fatigue strength. Ti6246 has high strength at high temperature, Ti6242 has good tensile properties and creep strength at high temperature, and these titanium alloys are widely used in the aerospace industry.
2. Ti6246 standard: Titanium alloy Ti6Al2Sn4Zr6Mo, aerospace titanium alloy standard AMS 4919J.
3. Surface finish/roughness Ra value ≤3.2μm.
4. Heat treatment: heating to 815-915 degrees Celsius, insulation 1-2h, air cooling 575-650 degrees Celsius, insulation 4-8h, air cooling.

4.Room temperature performance

• Tensile strength >896MPa
• Yield strength >825MPa
• Elongation >10%
• Shrinkage rate >25%

5.High temperature performance

• Tensile strength >1100MPa
• Yield strength >1035MPa
• Elongation >6%
• Shrinkage rate >14%