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

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Titanium Ti-8Al-1Mo-1V (Ti-8-1-1) Duplex Anneal
Categories:	Metal; Nonferrous Metal; Titanium Alloy; Alpha/Near Alpha Titanium Alloy
Material Notes:	Information provided by Allvac and the references. Duplex Anneal: 980ºC 4h; air cool; 540ºC 24 h; air cool. 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, DA, 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	326	326	Estimated from Rockwell C.
Hardness, Knoop	354	354	Estimated from Rockwell C.
Hardness, Rockwell C	35	35
Hardness, Vickers	341	341	Estimated from Rockwell C.
Tensile Strength, Ultimate	900 - 1000 MPa	131000 - 145000 psi
Tensile Strength, Yield	830 - 951 MPa	120000 - 138000 psi
Elongation at Break	15 %	15 %
Reduction of Area	28 %	28 %
Creep Strength	68.9 MPa @Temperature 500 °C, Time 3.60e+6 sec	9990 psi @Temperature 932 °F, Time 1000 hour	strain 0.05%
	97.9 MPa @Temperature 500 °C, Time 3.60e+6 sec	14200 psi @Temperature 932 °F, Time 1000 hour	strain 0.1%
	157 MPa @Temperature 500 °C, Time 3.60e+6 sec	22800 psi @Temperature 932 °F, Time 1000 hour	strain 0.2%
Modulus of Elasticity	124 GPa	18000 ksi
Modulus of Rigidity	46.9 GPa	6800 ksi
Poissons Ratio	0.32	0.32
Fatigue Strength	620 MPa @# of Cycles 3.00e+6	89900 psi @# of Cycles 3.00e+6	unnotched
	724 MPa @# of Cycles 85000	105000 psi @# of Cycles 85000
Fracture Toughness	176 MPa-m½	160 ksi-in½	K(IC)
	374 MPa-m½	340 ksi-in½	K(C)
Shear Modulus	46.0 GPa	6670 ksi
Charpy Impact	20.0 - 34.0 J	14.8 - 25.1 ft-lb	V-notch
Bend Radius, Minimum	4.5 t @Thickness >=1.80 mm	4.5 t @Thickness >=0.0709 in

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.000198 ohm-cm	0.000198 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	1038 °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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MTA815 / 14140

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