Titanium Ti-6Al-2Sn-4Zr-6Mo (Ti-6-2-4-6) STA-1

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Titanium Ti-6Al-2Sn-4Zr-6Mo (Ti-6-2-4-6) STA-1
Categories:	Metal; Nonferrous Metal; Titanium Alloy; Alpha/Beta Titanium Alloy
Material Notes:	Information provided by Allvac and the references. Solution Treated 875ºC; Aged 595ºC. Alpha-Beta Alloy. Characteristics: High strength at elevated temperatures, heat-treatable, good hardenability, weldable. Applications: Intermediate-temperature jet engine applications. Blades, discs, spacers, seals. Forms typically available: Billet, bar, plate and sheet. 4 other heat treatments of this alloy are listed in MatWeb.
Key Words:	Ti-6246; Titanium 6-2-4-6; UNS R56260
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	Original Value	Comments

Density	4.65 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	360	Estimated from Rockwell C.
Hardness, Knoop	392	Estimated from Rockwell C.
Hardness, Rockwell C	39
Hardness, Vickers	376	Estimated from Rockwell C.
Tensile Strength, Ultimate	1210 MPa
Tensile Strength, Yield	1120 MPa
Elongation at Break	13 %
Reduction of Area	37 %
Tensile Modulus	114 GPa
Poissons Ratio	0.33	Typical for alpha-beta titanium alloy.
Fatigue Strength	250 MPa @# of Cycles 1.00e+7	notched
	620 MPa @# of Cycles 1.00e+7	Unnotched
Fracture Toughness	34.0 MPa-m½	K(IC)
Shear Modulus	42.9 GPa	Calculated from typical values.
Charpy Impact	9.50 J	V-notch

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.000190 ohm-cm

Thermal Properties	Original Value	Comments
CTE, linear	8.60 µm/m-°C @Temperature 20.0 °C
	9.90 µm/m-°C @Temperature 205 °C
	10.4 µm/m-°C @Temperature 540 °C
Specific Heat Capacity	0.500 J/g-°C
Thermal Conductivity	7.70 W/m-K @Temperature 23.0 °C
	13.5 W/m-K @Temperature 540 °C
Melting Point	1595 - 1675 °C
Solidus	1595 °C
Liquidus	1675 °C
Beta Transus	935 °C

Component Elements Properties	Original Value	Comments
Aluminum, Al	6.0 %
Carbon, C	<= 0.040 %
Iron, Fe	<= 0.15 %
Molybdenum, Mo	6.0 %
Nitrogen, N	<= 0.040 %
Oxygen, O	<= 0.12 %
Tin, Sn	2.0 %
Titanium, Ti	82 %
Zirconium, Zr	4.0 %

References for this datasheet.

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MTP621 / 14234

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