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Titanium Transage 129, Triplex Heat Treat 815/650/425°C
Categories: Metal; Nonferrous Metal; Titanium Alloy; Beta Titanium Alloy

Material Notes: This alloy has very good fatigue resistance, which is enhanced by an alpha-beta anneal at 650ºC before aging at 425-540ºC.

Characteristics:

  • Martensitic alloy
  • High hardenability
  • Heat treatable
  • Good fatigue properties
  • Good fracture properties
  • Suitable for hot-working and cold-forming

See other heat treatments for this alloy as well as entries for Transage 134 and 175.

Key Words: Ti-11.5V-2Al-2Sn-11Zr; T129
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Physical PropertiesMetricEnglishComments
Density 4.82 g/cc0.174 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate 1390 MPa202000 psi
Tensile Strength, Yield 1250 MPa181000 psi
Elongation at Break 8.0 %8.0 %
Reduction of Area 23 %23 %
Modulus of Elasticity 108 GPa15700 ksiAfter Duplex Heat Treat 815/540ºC
Poissons Ratio 0.330.33Typical for beta titanium alloy.
Shear Modulus 40.6 GPa5890 ksiCalculated from typical values.
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.000150 ohm-cm0.000150 ohm-cmEstimated from similar high-V-stabilized beta titanium alloys.
 
Thermal PropertiesMetricEnglishComments
CTE, linear  8.50 µm/m-°C
@Temperature 20.0 - 100 °C
4.72 µin/in-°F
@Temperature 68.0 - 212 °F
Typical beta titanium alloy
 9.20 µm/m-°C
@Temperature 0.000 - 315 °C
5.11 µin/in-°F
@Temperature 32.0 - 599 °F
Typical Mo-stabilized-beta titanium alloy
Specific Heat Capacity 0.525 J/g-°C0.125 BTU/lb-°FTypical value for titanium alloys.
Thermal Conductivity 7.80 W/m-K54.1 BTU-in/hr-ft²-°FEstimated from similar high-V-stabilized beta titanium alloys.
Beta Transus 720 °C1330 °F
 
Component Elements PropertiesMetricEnglishComments
Aluminum, Al 2.0 %2.0 %
Boron, B <= 0.030 %<= 0.030 %
Carbon, C <= 0.080 %<= 0.080 %
Hydrogen, H <= 0.015 %<= 0.015 %
Iron, Fe <= 0.20 %<= 0.20 %
Nitrogen, N <= 0.050 %<= 0.050 %
Other, each <= 0.10 %<= 0.10 %
Other, total <= 0.40 %<= 0.40 %
Oxygen, O <= 0.15 %<= 0.15 %
Tin, Sn 2.0 %2.0 %
Titanium, Ti 73.5 %73.5 %
Vanadium, V 11.5 %11.5 %
Yttrium, Y <= 0.0050 %<= 0.0050 %
Zirconium, Zr 11 %11 %

References for this datasheet.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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