Titanium Ti-8Al-1Mo-1V (Ti-8-1-1) Annealed 8 hr at 790°C (1450°F)

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Titanium Ti-8Al-1Mo-1V (Ti-8-1-1) Annealed 8 hr at 790°C (1450°F)
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	689 MPa @Temperature 427 °C	99900 psi @Temperature 801 °F
Tensile Strength, Ultimate	1000 MPa	145000 psi
Tensile Strength, Yield	930 MPa	135000 psi
Elongation at Break	12 %	12 %
Creep Strength	620 MPa @Temperature 316 °C, Time >=3.60e+6 sec	89900 psi @Temperature 601 °F, Time >=1000 hour	strain 0.2%
Rupture Strength	276 MPa @Temperature 538 °C, Time 3.60e+6 sec	40000 psi @Temperature 1000 °F, Time 1000 hour
Tensile Modulus	121 GPa	17500 ksi
Modulus of Rigidity	46.2 GPa	6700 ksi
Compressive Yield Strength	980 MPa	142000 psi
Compressive Modulus	124 GPa	18000 ksi
Notched Tensile Strength	1100 MPa	160000 psi	K_t (stress concentration factor) = 6.0
Ultimate Bearing Strength	2000 MPa	290000 psi	e/D = 2
Bearing Yield Strength	1480 MPa	215000 psi	e/D = 2
Poissons Ratio	0.32	0.32
Fatigue Strength	170 MPa @# of Cycles 1.00e+7	24700 psi @# of Cycles 1.00e+7	K_t (stress concentration factor) = 2.6
	340 MPa @# of Cycles 1.00e+7	49300 psi @# of Cycles 1.00e+7	unnotched
	725 MPa @# of Cycles 50000	105000 psi @# of Cycles 50000	unnotched
Fracture Toughness	910 MPa-m½	828 ksi-in½
Shear Modulus	46.0 GPa	6670 ksi
Shear Strength	620 MPa	89900 psi	Ultimate shear strength
Charpy Impact	20.0 - 30.0 J	14.8 - 22.1 ft-lb	V-notch

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	Annealed
	9.20 µm/m-°C @Temperature 250 °C	5.11 µin/in-°F @Temperature 482 °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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MTA816 / 14141

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