Titanium Ti-6Al-6V-2Sn (Ti-6-6-2) STA 870°C/565°C

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Titanium Ti-6Al-6V-2Sn (Ti-6-6-2) STA 870°C/565°C
Categories:	Metal; Nonferrous Metal; Titanium Alloy; Alpha/Beta Titanium Alloy
Material Notes:	Information provided by Allvac and the references. Solution Treated 870ºC, Aged 565ºC. 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	389	389	Estimated from Rockwell C.
Hardness, Knoop	425	425	Estimated from Rockwell C.
Hardness, Rockwell C	42	42
Hardness, Vickers	407	407	Estimated from Rockwell C.
Tensile Strength	900 MPa @Temperature 300 °C	131000 psi @Temperature 572 °F
	930 MPa @Temperature 200 °C	135000 psi @Temperature 392 °F
	980 MPa @Temperature 100 °C	142000 psi @Temperature 212 °F
Tensile Strength, Ultimate	1100 MPa	160000 psi
Tensile Strength, Yield	1035 MPa	150100 psi
	760 MPa @Temperature 300 °C	110000 psi @Temperature 572 °F
	820 MPa @Temperature 200 °C	119000 psi @Temperature 392 °F
	880 MPa @Temperature 100 °C	128000 psi @Temperature 212 °F
Elongation at Break	12 %	12 %
	15 % @Temperature 100 °C	15 % @Temperature 212 °F
	17 % @Temperature 200 °C	17 % @Temperature 392 °F
	18 % @Temperature 300 °C	18 % @Temperature 572 °F
Reduction of Area	18 % @Temperature 23.0 °C	18 % @Temperature 73.4 °F
	24 % @Temperature 100 °C	24 % @Temperature 212 °F
	39 % @Temperature 200 °C	39 % @Temperature 392 °F
	42 % @Temperature 300 °C	42 % @Temperature 572 °F
Creep Strength	770 MPa @Temperature 315 °C, Time >=1.80e+6 sec	112000 psi @Temperature 599 °F, Time >=500 hour	strain 0.5%
	800 MPa @Temperature 315 °C, Time >=360000 sec	116000 psi @Temperature 599 °F, Time >=100 hour	strain 0.5%
	800 MPa @Temperature 315 °C, Time >=1.80e+6 sec	116000 psi @Temperature 599 °F, Time >=500 hour	strain 1%
	820 MPa @Temperature 315 °C, Time >=360000 sec	119000 psi @Temperature 599 °F, Time >=100 hour	strain 1%
Modulus of Elasticity	112 GPa	16200 ksi
Tensile Modulus	101 GPa @Temperature 300 °C	14600 ksi @Temperature 572 °F
	106 GPa @Temperature 200 °C	15400 ksi @Temperature 392 °F
	110 GPa @Temperature 100 °C	16000 ksi @Temperature 212 °F
Poissons Ratio	0.32	0.32
Fatigue Strength	190 MPa @# of Cycles 1.00e+7	27600 psi @# of Cycles 1.00e+7	notched
	540 MPa @# of Cycles 10000	78300 psi @# of Cycles 10000	K_t (stress concentration factor) = 3.9
	680 MPa @# of Cycles 1.00e+7	98600 psi @# of Cycles 1.00e+7	unnotched sample
	1070 MPa @# of Cycles 10000	155000 psi @# of Cycles 10000	unnotched
Fracture Toughness	60.0 MPa-m½	54.6 ksi-in½	Plane-Strain
	60.0 MPa-m½ @Temperature 22.0 °C	54.6 ksi-in½ @Temperature 71.6 °F
	99.0 MPa-m½ @Temperature 93.0 °C	90.1 ksi-in½ @Temperature 199 °F
	143 MPa-m½ @Temperature 205 °C	130 ksi-in½ @Temperature 401 °F
Shear Modulus	45.0 GPa	6530 ksi

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 °C	5.00 µin/in-°F @Temperature 68.0 °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
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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MTP662 / 14245

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