Titanium Ti-8Al-1Mo-1V (Ti-8-1-1)

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Titanium Ti-8Al-1Mo-1V (Ti-8-1-1)
Categories:	Metal; Nonferrous Metal; Titanium Alloy; Alpha/Near Alpha Titanium Alloy
Material Notes:	Information provided by Allvac and the references. Characteristics: Low density, high modulus, high stiffness/density ratio, moderate to high strength, good elevated temperature tensile properties and excellent creep resistance (for operating temperatures up to 455°C) Applications: Fan & compressor blades, discs, spacers, seals, rings. Forms typically available: Billet, bar, rod, extrusions, plate, sheet and wire. 5 other heat treatments of this alloy are in MatWeb.
Key Words:	Ti8Al1Mo1V, UNS R54810; Ti-811
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Physical Properties	Metric	English	Comments

Density	4.37 g/cc	0.158 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	334	334	Estimated from Rockwell C.
Hardness, Knoop	363	363	Estimated from Rockwell C.
Hardness, Rockwell C	36	36
Hardness, Vickers	349	349	Estimated from Rockwell C.
Tensile Strength, Ultimate	937 MPa	136000 psi
Tensile Strength, Yield	910 MPa	132000 psi
Elongation at Break	18 %	18 %
Reduction of Area	47 %	47 %
Modulus of Elasticity	120 GPa	17400 ksi
Poissons Ratio	0.32	0.32	duplex annealed
Fatigue Strength	689 MPa @# of Cycles 50000	99900 psi @# of Cycles 50000
Fracture Toughness	82.0 MPa-m½	74.6 ksi-in½	K(IC)
	151 MPa-m½	137 ksi-in½	K(C)
Shear Modulus	46.0 GPa	6670 ksi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.000197 ohm-cm	0.000197 ohm-cm

Thermal Properties	Metric	English	Comments
CTE, linear	8.50 µm/m-°C @Temperature 20.0 °C	4.72 µin/in-°F @Temperature 68.0 °F
	9.20 µm/m-°C @Temperature 250 °C	5.11 µin/in-°F @Temperature 482 °F
	10.1 µm/m-°C @Temperature 500 °C	5.61 µin/in-°F @Temperature 932 °F
Specific Heat Capacity	0.502 J/g-°C	0.120 BTU/lb-°F
Thermal Conductivity	6.00 W/m-K	41.6 BTU-in/hr-ft²-°F
Melting Point	<= 1540 °C	<= 2800 °F
Liquidus	1540 °C	2800 °F
Beta Transus	1040 °C	1900 °F

Component Elements Properties	Metric	English	Comments
Aluminum, Al	7.35 - 8.35 %	7.35 - 8.35 %
Carbon, C	<= 0.080 %	<= 0.080 %
Hydrogen, H	<= 0.015 %	<= 0.015 %
Iron, Fe	<= 0.30 %	<= 0.30 %
Molybdenum, Mo	0.75 - 1.25 %	0.75 - 1.25 %
Nitrogen, N	<= 0.050 %	<= 0.050 %
Other, each	<= 0.10 %	<= 0.10 %
Other, total	<= 0.40 %	<= 0.40 %
Oxygen, O	<= 0.12 %	<= 0.12 %
Titanium, Ti	88.185 - 91.15 %	88.185 - 91.15 %	As Balance; Elemental Composition per ASTM B265
Vanadium, V	0.75 - 1.25 %	0.75 - 1.25 %

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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MTA814 / 14139

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