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
Vendors:	No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
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Physical Properties	Original Value	Comments

Density	4.48 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	318	Estimated from Rockwell C.
Hardness, Knoop	346	Estimated from Rockwell C.
Hardness, Rockwell C	34
Hardness, Vickers	333	Estimated from Rockwell C.
Tensile Strength, Ultimate	1030 MPa
Tensile Strength, Yield	970 MPa
Tensile Modulus	111 GPa
Compressive Modulus	111 GPa
Poissons Ratio	0.32
Shear Modulus	42.0 GPa

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.000170 ohm-cm

Thermal Properties	Original Value	Comments
CTE, linear	9.00 µm/m-°C @Temperature 20.0 - 100 °C
	9.40 µm/m-°C @Temperature 20.0 - 315 °C	average
	10.4 µm/m-°C @Temperature 20.0 - 615 °C	average
Specific Heat Capacity	0.515 J/g-°C
Thermal Conductivity	6.10 W/m-K
	10.4 W/m-K @Temperature 315 °C
	12.1 W/m-K @Temperature 427 °C
	13.8 W/m-K @Temperature 540 °C
Melting Point	<= 1650 °C
Liquidus	1650 °C
Maximum Service Temperature, Air	480 °C
Beta Transus	1005 °C

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

References for this datasheet.

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MTP742 / 14248

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