Titanium Beta C (Ti-3Al-8V-6Cr-4Mo-4Zr ST 815°C, Aged 510°C

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Titanium Beta C (Ti-3Al-8V-6Cr-4Mo-4Zr ST 815°C, Aged 510°C
Categories:	Metal; Nonferrous Metal; Titanium Alloy; Beta Titanium Alloy
Material Notes:	ST=solution Treated Equiaxed beta grain structure (bcc) with fine alpha precipitate (cph) within matrix. Good ductility, high strength. Applications: Fasteners, springs, torsion bars, foil. 3 other heat treatments of this alloy are in MatWeb.
Key Words:	Ti-3Al-8V-6Cr-4Mo-4Zr; TIMETAL 3-8-6-44; UNS R58640; Ti-38-6-44
Vendors:	TITANIUM ENGINEERS is your source for high strength, NACE titanium alloys, with a full range of stock sizes and sizes made to order. Our in-house metallurgical experts ensure the best alloy selection and process titanium to meet unique customer specifications. Please visit our website www.TitaniumEngineers.com for more information or call us at +1 281 265 2910 (USA) or +44 (0) 1675 464200 (UK). Click here to view all available suppliers 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	Metric	English	Comments

Density	4.82 g/cc	0.174 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	351	351	Estimated from Rockwell C.
Hardness, Knoop	382	382	Estimated from Rockwell C.
Hardness, Rockwell C	38	38
Hardness, Vickers	367	367	Estimated from Rockwell C.
Tensile Strength, Ultimate	1240 MPa	180000 psi
Tensile Strength, Yield	1170 MPa	170000 psi
Elongation at Break	7.0 %	7.0 %
Reduction of Area	15 %	15 %
Modulus of Elasticity	104 GPa	15100 ksi
Compressive Yield Strength	1070 MPa	155000 psi
Notched Tensile Strength	600 MPa	87000 psi	K_t (stress concentration factor) = 8.4
Poissons Ratio	0.33	0.33
Fatigue Strength	240 MPa @# of Cycles 1.00e+7	34800 psi @# of Cycles 1.00e+7	K_t (stress concentration factor) = 3.0
	450 MPa @# of Cycles 1.00e+7	65300 psi @# of Cycles 1.00e+7	Unnotched
Fracture Toughness	55.0 MPa-m½	50.1 ksi-in½	K(IC)
Shear Modulus	40.0 GPa	5800 ksi
Shear Strength	790 MPa	115000 psi	Ultimate shear strength
Charpy Impact	9.00 J	6.64 ft-lb	V-notch

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.000160 ohm-cm	0.000160 ohm-cm

Thermal Properties	Metric	English	Comments
CTE, linear	8.30 µm/m-°C @Temperature 20.0 - 100 °C	4.61 µin/in-°F @Temperature 68.0 - 212 °F
	8.70 µm/m-°C @Temperature 20.0 - 250 °C	4.83 µin/in-°F @Temperature 68.0 - 482 °F	estimated from lower temperatures
Specific Heat Capacity	0.515 J/g-°C	0.123 BTU/lb-°F
Thermal Conductivity	6.20 W/m-K	43.0 BTU-in/hr-ft²-°F
Melting Point	1555 - 1650 °C	2831 - 3000 °F
Solidus	1555 °C	2831 °F
Liquidus	1650 °C	3000 °F
Beta Transus	730 °C	1350 °F

Component Elements Properties	Metric	English	Comments
Aluminum, Al	3.0 %	3.0 %
Carbon, C	<= 0.050 %	<= 0.050 %
Chromium, Cr	6.0 %	6.0 %
Iron, Fe	<= 0.30 %	<= 0.30 %
Molybdenum, Mo	4.0 %	4.0 %
Nitrogen, N	<= 0.030 %	<= 0.030 %
Oxygen, O	<= 0.14 %	<= 0.14 %
Titanium, Ti	75 %	75 %
Vanadium, V	8.0 %	8.0 %
Zirconium, Zr	4.0 %	4.0 %

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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MTB0C2 / 14160

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