Titanium Ti-7Al-4Mo Annealed

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Titanium Ti-7Al-4Mo Annealed
Categories:	Metal; Nonferrous Metal; Titanium Alloy; Alpha/Beta Titanium Alloy
Material Notes:	Annealed 790ºC. Alpha-Beta Alloy. High strength. Good creep resistance. Applications: Aerospace, jet engine disks, compressor blades and spacers, sonic horns 1 other heat treatment of this alloy is in MatWeb.
Key Words:	UNS R56740
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Physical Properties	Metric	English	Comments

Density	4.48 g/cc	0.162 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	318	318	Estimated from Rockwell C.
Hardness, Knoop	346	346	Estimated from Rockwell C.
Hardness, Rockwell C	34	34
Hardness, Vickers	333	333	Estimated from Rockwell C.
Tensile Strength, Ultimate	1030 MPa	149000 psi
Tensile Strength, Yield	970 MPa	141000 psi
Tensile Modulus	111 GPa	16100 ksi
Compressive Modulus	111 GPa	16100 ksi
Poissons Ratio	0.32	0.32
Shear Modulus	42.0 GPa	6090 ksi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.000170 ohm-cm	0.000170 ohm-cm

Thermal Properties	Metric	English	Comments
CTE, linear	9.00 µm/m-°C @Temperature 20.0 - 100 °C	5.00 µin/in-°F @Temperature 68.0 - 212 °F
	9.40 µm/m-°C @Temperature 20.0 - 315 °C	5.22 µin/in-°F @Temperature 68.0 - 599 °F	average
	10.4 µm/m-°C @Temperature 20.0 - 615 °C	5.78 µin/in-°F @Temperature 68.0 - 1140 °F	average
Specific Heat Capacity	0.515 J/g-°C	0.123 BTU/lb-°F
Thermal Conductivity	6.10 W/m-K	42.3 BTU-in/hr-ft²-°F
	10.4 W/m-K @Temperature 315 °C	72.2 BTU-in/hr-ft²-°F @Temperature 599 °F
	12.1 W/m-K @Temperature 427 °C	84.0 BTU-in/hr-ft²-°F @Temperature 801 °F
	13.8 W/m-K @Temperature 540 °C	95.8 BTU-in/hr-ft²-°F @Temperature 1000 °F
Melting Point	<= 1650 °C	<= 3000 °F
Liquidus	1650 °C	3000 °F
Maximum Service Temperature, Air	480 °C	896 °F
Beta Transus	1005 °C	1841 °F

Component Elements Properties	Metric	English	Comments
Aluminum, Al	7.0 %	7.0 %
Carbon, C	<= 0.10 %	<= 0.10 %
Hydrogen, H	<= 0.013 %	<= 0.013 %
Iron, Fe	<= 0.30 %	<= 0.30 %
Molybdenum, Mo	4.0 %	4.0 %
Nitrogen, N	<= 0.050 %	<= 0.050 %
Oxygen, O	<= 0.20 %	<= 0.20 %
Titanium, Ti	89 %	89 %

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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MTP742 / 14248

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