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Ti-5Al-2.5Sn (Grade 6) Titanium

Technical guide to Ti-5Al-2.5Sn (Grade 6) — an alpha titanium alloy with excellent weldability and good strength at cryogenic and elevated temperatures.

Grade 6Ti-5Al-2.5Sn
PropertyValue
Density4.48 g/cm³
Tensile Strength825 MPa
Yield Strength795 MPa
Hardness34 HRC
Max Temp480°C

Quick Answer

What is Ti-5Al-2.5Sn (Grade 6)?
Ti-5Al-2.5Sn is an alpha titanium alloy stabilised with aluminium and tin. It offers good strength at elevated temperatures (up to 480°C) and excellent cryogenic properties. Its fully alpha microstructure provides excellent weldability and corrosion resistance, making it suitable for both cryogenic pressure vessels and high-temperature airframe components.

Mechanical Properties

Property Value
Density 4.48 g/cm³
Tensile Strength 825 MPa (min)
Yield Strength 795 MPa (min)
Elongation 10%
Hardness 34 HRC
Max Service Temperature 480°C

Applications

  • Cryogenic pressure vessels for launch vehicles
  • Airframe structural components in high-temperature zones
  • Rocket motor casings
  • Chemical processing equipment at elevated temperatures
  • Helicopter rotor components