Titanium Ti-6Al-2Sn-4Zr-2Mo (Ti-6-2-4-2), Duplex Annealed

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Titanium Ti-6Al-2Sn-4Zr-2Mo (Ti-6-2-4-2), Duplex Annealed
Categories:	Metal; Nonferrous Metal; Titanium Alloy; Alpha/Near Alpha Titanium Alloy
Material Notes:	Alpha Alloy. Silicon is often added to improve creep resistance (See Ti-6242S). Characteristics: Good elevated-temperature performance, good creep strength Applications: High-temp jet engines. Blades, discs, spacers, seals. High performance automotive valves. 1 other heat treatment of this alloy is in MatWeb.
Key Words:	Ti6Al2Sn4Zr2Mo, Ti-6242; Ti-6-2-4-2; UNS R54620
Vendors:	Visit metalmen for your metals needs. Products include special chemistry, tight tolerances, custom tempers, odd dimensions/forms, and small quantities. Phone 1-800-767-9494. 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	4.54 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	304	Estimated from Rockwell C.
Hardness, Knoop	330	Estimated from Rockwell C.
Hardness, Rockwell C	32
Hardness, Vickers	318	Estimated from Rockwell C.
Tensile Strength, Ultimate	940 MPa
Tensile Strength, Yield	860 MPa
Elongation at Break	15 %
Reduction of Area	35 %
Modulus of Elasticity	113.8 GPa
Compressive Yield Strength	1070 MPa
Notched Tensile Strength	1170 MPa	K_t (stress concentration factor) = 3.0
Ultimate Bearing Strength	2000 MPa	e/D = 2
Bearing Yield Strength	1620 MPa	e/D = 2
Poissons Ratio	0.32
Fatigue Strength	280 MPa @# of Cycles 1.00e+7	K_t (stress concentration factor) = 3.0
	480 MPa @# of Cycles 1.00e+7	unnotched
Shear Modulus	43.1 GPa	Calculated
Shear Strength	660 MPa	Ultimate shear strength
Charpy Impact	20.0 J	V-notch
Bend Radius, Minimum	5.0 t @Thickness >=1.80 mm

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.000190 ohm-cm

Thermal Properties	Original Value	Comments
CTE, linear	7.70 µm/m-°C @Temperature 20.0 - 100 °C
	8.10 µm/m-°C @Temperature 20.0 - 315 °C	average
	8.10 µm/m-°C @Temperature 20.0 - 540 °C	average
Specific Heat Capacity	0.460 J/g-°C
Thermal Conductivity	7.95 W/m-K
	7.10 W/m-K @Temperature 100 °C
Melting Point	<= 1700 °C	Estimated from similar materials
Liquidus	1700 °C	Estimated from similar materials
Beta Transus	990 °C

Component Elements Properties	Original Value	Comments
Aluminum, Al	6.0 %
Carbon, C	<= 0.050 %
Hydrogen, H	<= 0.0125 %
Iron, Fe	<= 0.25 %
Molybdenum, Mo	2.0 %
Nitrogen, N	<= 0.050 %
Other, each	<= 0.10 %
Other, total	<= 0.30 %
Oxygen, O	<= 0.12 %
Tin, Sn	2.0 %
Titanium, Ti	86 %
Zirconium, Zr	4.0 %

References for this datasheet.

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