TIMET TIMETAL® 6-2-4-6 Titanium Alloy (Ti-6Al-2Sn-4Zr-6Mo), Triplex Annealed Sheet

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TIMET TIMETAL® 6-2-4-6 Titanium Alloy (Ti-6Al-2Sn-4Zr-6Mo), Triplex Annealed Sheet
Categories:	Metal; Nonferrous Metal; Titanium Alloy; Alpha/Beta Titanium Alloy
Material Notes:	High-Strength, Intermediate Temperature Alloy. TIMETAL 6-2-4-6 is a stronger derivative of TIMETAL 6-2-4-2 offering higher strength, depth hardenability and elevated temperature properties up to 450°C. This alloy is similar in forgeability and crack sensitivity to TIMETAL 6-4. This alloy is used in intermediate compressor stages of turbine engines for disks and blades, seals, and for airframe parts. It is nonmagnetic. Mechanical property data for sample after 855°C/15min/FAC + 730 °C/15min/AC + 595°C/2hr/AC triplex anneal treatment. Data provided by TIMET.
Key Words:	UNS R56260
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Physical Properties	Original Value	Comments

Density	4.64 g/cc	Typical

Mechanical Properties	Original Value	Comments
Tensile Strength, Ultimate	200 MPa @Temperature 750 °C
	780 MPa @Temperature 600 °C
	1200 MPa @Temperature 400 °C
	1225 MPa @Temperature 200 °C
	1400 MPa @Temperature 23.0 °C
Tensile Strength, Yield	100 MPa @Temperature 750 °C
	650 MPa @Temperature 600 °C
	900 MPa @Temperature 400 °C
	1100 MPa @Temperature 200 °C
	1300 MPa @Temperature 23.0 °C
Modulus of Elasticity	115 GPa	Typical
	100 GPa @Temperature 425 °C
	107 GPa @Temperature 315 °C

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.000190 - 0.000205 ohm-cm

Thermal Properties	Original Value	Comments
CTE, linear	9.00 µm/m-°C @Temperature 20.0 - 100 °C
Specific Heat Capacity	0.502 J/g-°C
Thermal Conductivity	7.61 W/m-K
Melting Point	1595 - 1675 °C
Solidus	1595 °C
Liquidus	1675 °C
Beta Transus	940 °C

Component Elements Properties	Original Value	Comments
Aluminum, Al	5.5 - 6.5 %
Carbon, C	<= 0.040 %
Hydrogen, H	<= 0.125 %
Iron, Fe	<= 0.15 %
Molybdenum, Mo	5.5 - 6.5 %
Nitrogen, N	<= 0.040 %
Other, each	<= 0.10 %
Other, total	<= 0.40 %
Oxygen, O	<= 0.15 %
Tin, Sn	1.75 - 2.25 %
Titanium, Ti	79.4 - 83.7 %	Calculated as remainder
Zirconium, Zr	3.6 - 4.4 %

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NTIME6246I / 200039

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