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Titanium IMI 230 (Ti-2.5Cu)
Categories: Metal; Nonferrous Metal; Titanium Alloy; Alpha/Near Alpha Titanium Alloy

Material Notes: Annealed; Aging increases Strength

Characteristics: Formability and weldability simiar to unalloyed Titanium, improved mechanical properties.

1 other heat treatment of this alloy is in MatWeb.

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Physical PropertiesMetricEnglishComments
Density 4.56 g/cc0.165 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate 620 MPa89900 psi
Tensile Strength, Yield 480 MPa69600 psi
Elongation at Break 24 %24 %
Modulus of Elasticity 105 GPa15200 ksi
Poissons Ratio 0.310.31Typical for alpha titanium alloy.
Fatigue Strength 280 MPa
@# of Cycles 1.00e+7
40600 psi
@# of Cycles 1.00e+7
Shear Modulus 40.1 GPa5820 ksiCalculated from typical values.
Bend Radius, Minimum 2.0 t
@Thickness 0.500 - 3.00 mm
2.0 t
@Thickness 0.0197 - 0.118 in
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000650 ohm-cm0.0000650 ohm-cm
 
Thermal PropertiesMetricEnglishComments
CTE, linear  9.02 µm/m-°C
@Temperature 20.0 - 100 °C
5.01 µin/in-°F
@Temperature 68.0 - 212 °F
 9.10 µm/m-°C
@Temperature 20.0 - 300 °C
5.06 µin/in-°F
@Temperature 68.0 - 572 °F
average
 9.46 µm/m-°C
@Temperature 20.0 - 600 °C
5.26 µin/in-°F
@Temperature 68.0 - 1110 °F
average
Specific Heat Capacity 0.525 J/g-°C0.125 BTU/lb-°FTypical value for titanium alloys.
Thermal Conductivity 13.0 W/m-K90.2 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 350 °C662 °F
Beta Transus 895 °C1640 °F
 
Component Elements PropertiesMetricEnglishComments
Carbon, C <= 0.080 %<= 0.080 %
Copper, Cu 2.0 - 3.0 %2.0 - 3.0 %
Hydrogen, H <= 0.010 %<= 0.010 %
Iron, Fe <= 0.20 %<= 0.20 %
Nitrogen, N <= 0.050 %<= 0.050 %
Other, total <= 0.40 %<= 0.40 %
Oxygen, O <= 0.20 %<= 0.20 %
Titanium, Ti 96.06 - 98 %96.06 - 98 %As Balance; Elemental Composition per ASTM B265

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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MTA231 / 14121

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