Titanium Ti-6Al-6V-2Sn (Ti-6-6-2) Annealed

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Titanium Ti-6Al-6V-2Sn (Ti-6-6-2) Annealed
Categories:	Metal; Nonferrous Metal; Titanium Alloy; Alpha/Beta Titanium Alloy
Material Notes:	Information provided by Allvac and the references. Annealed 730ºC. Alpha-Beta Alloy Characteristics: Good corrosion resistance. Higher strength, lower fracture toughness and lower fatigue properties when compared to Ti-6Al-4V Applications: Airframes, jet engines, rocket engine cases, nuclear reactor components, ordnance components. Forms available: Billet, bar, plate, sheet and extrusions. 2 other heat treatments of this alloy are listed in MatWeb.
Key Words:	Ti-662; Ti-6-6-2; UNS R56620
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Physical Properties	Metric	English	Comments

Density	4.54 g/cc	0.164 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	1050 MPa	152000 psi
Tensile Strength, Yield	980 MPa	142000 psi
Elongation at Break	14 %	14 %
Reduction of Area	30 %	30 %
Modulus of Elasticity	110.3 GPa	16000 ksi
Ultimate Bearing Strength	2100 MPa	305000 psi	e/D = 2
Bearing Yield Strength	1350 MPa	196000 psi	e/D = 2
Poissons Ratio	0.32	0.32
Fatigue Strength	140 MPa @# of Cycles 1.00e+8	20300 psi @# of Cycles 1.00e+8	notched
	190 MPa @# of Cycles 100000	27600 psi @# of Cycles 100000	K_t (stress concentration factor) = 3
Fracture Toughness	60.0 MPa-m½	54.6 ksi-in½	K_IC
Shear Modulus	45.0 GPa	6530 ksi	Aged sample.
Charpy Impact	16.0 J	11.8 ft-lb	V-notch
Bend Radius, Minimum	4.5 t @Thickness >=1.80 mm	4.5 t @Thickness >=0.0709 in

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.000157 ohm-cm	0.000157 ohm-cm
Magnetic Permeability	1.0	1.0	non-magnetic

Thermal Properties	Metric	English	Comments
CTE, linear	9.00 µm/m-°C @Temperature 20.0 - 100 °C	5.00 µin/in-°F @Temperature 68.0 - 212 °F
	9.40 µm/m-°C @Temperature 20.0 - 315 °C	5.22 µin/in-°F @Temperature 68.0 - 599 °F	average
	9.50 µm/m-°C @Temperature 20.0 - 540 °C	5.28 µin/in-°F @Temperature 68.0 - 1000 °F	average
Specific Heat Capacity	0.670 J/g-°C	0.160 BTU/lb-°F
	0.687 J/g-°C @Temperature 260 °C	0.164 BTU/lb-°F @Temperature 500 °F
	0.712 J/g-°C @Temperature 480 °C	0.170 BTU/lb-°F @Temperature 896 °F
Thermal Conductivity	6.60 W/m-K	45.8 BTU-in/hr-ft²-°F
	8.12 W/m-K @Temperature 205 °C	56.4 BTU-in/hr-ft²-°F @Temperature 401 °F
	11.9 W/m-K @Temperature 425 °C	82.6 BTU-in/hr-ft²-°F @Temperature 797 °F
Melting Point	1627 - 1649 °C	2961 - 3000 °F
Solidus	1627 °C	2961 °F
Liquidus	1649 °C	3000 °F
Maximum Service Temperature, Air	315 °C	599 °F	Subject to tensile embrittlement above 315ºC
Beta Transus	945 °C	1730 °F

Component Elements Properties	Metric	English	Comments
Aluminum, Al	5.0 - 6.0 %	5.0 - 6.0 %
Carbon, C	<= 0.050 %	<= 0.050 %
Copper, Cu	0.35 - 1.0 %	0.35 - 1.0 %
Hydrogen, H	<= 0.015 %	<= 0.015 %
Iron, Fe	0.35 - 1.0 %	0.35 - 1.0 %
Nitrogen, N	<= 0.040 %	<= 0.040 %
Other, each	<= 0.10 %	<= 0.10 %
Other, total	<= 0.30 %	<= 0.30 %
Oxygen, O	<= 0.20 %	<= 0.20 %
Tin, Sn	1.5 - 2.5 %	1.5 - 2.5 %
Titanium, Ti	82.895 - 87.8 %	82.895 - 87.8 %	As Balance; Elemental Composition per ASTM B265
Vanadium, V	5.0 - 6.0 %	5.0 - 6.0 %

Descriptive Properties
Crystal Structure	bcc		Beta
	cph		Alpha

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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MTP661 / 14244

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