Titanium Ti-3Al-2.5V, ST 925C, Aged 480C

Subcategory: Alpha/Near Alpha Titanium Alloy; Metal; Nonferrous Metal; Titanium Alloy

Close Analogs: 3 other heat treatments of this alloy are in Matweb.

Key Words: Ti3Al2.5V, ST 925C, Aged 480C; Ti-3-2.5 STA; UNS R56320; ASTM Grade 9; Half 6-4; Tubing Alloy

Component   Wt. %

Material Notes:
Information provided by Allvac and the references.

Applications: Excellent cold formability, 20-50% higher tensile properties than CP titanium grades. Primarily used in aircraft hydraulic systems.

Physical PropertiesMetricEnglishComments
Density4.48 g/cc0.162 lb/in 

Mechanical Properties
Tensile Strength, Ultimate910 MPa132000 psi 
Tensile Strength, Yield830 MPa120000 psi 
Elongation at Break11 %11 % 
Modulus of Elasticity100 GPa14500 ksi Alpha-annealed in tension.
Poisson's Ratio0.30.3 alpha annealed
Shear Modulus44 GPa6380 ksi Alpha-annealed

Electrical Properties
Electrical Resistivity0.000127 ohm-cm0.000127 ohm-cm 

Thermal Properties
CTE, linear 20C9.61 m/m-C5.34 in/in-F 20-95C
CTE, linear 250C9.86 m/m-C5.48 in/in-F 20-315C; 9.67 in range 20-205C
CTE, linear 500C9.97 m/m-C5.54 in/in-F Average over the range 20-540C
Specific Heat Capacity0.525 J/g-C0.125 BTU/lb-F Typical value for titanium alloys.
Thermal Conductivity8.3 W/m-K57.6 BTU-in/hr-ft-F Value at 315C is 11.8 W/m-C
Melting PointMax 1700 CMax 3090 F Liquidus
Liquidus1700 C3090 F 
Beta Transus935 C1720 F 

References for this datasheet.

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