Titanium Ti-6Al-2Nb-1Ta-1Mo, Annealed

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Titanium Ti-6Al-2Nb-1Ta-1Mo, Annealed
Categories:	Metal; Nonferrous Metal; Titanium Alloy; Alpha/Near Alpha Titanium Alloy
Material Notes:	Annealed 700-870°C for 15 - 120 min. Characteristics: High toughness, moderate strength, weldability, resistance to seawater corrosion, unheat-treatable. Applications: Marine and sub-marine vehicles - hardware and hull structures, Naval aircraft. Forms available: Billet, bar and plate. 1 other heat treatment of this alloy is in MatWeb.
Key Words:	Ti6Al2Nb1Ta1Mo, Ti-6211; Ti-621/0.8; UNS R56210
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	Metric	English	Comments

Density	4.48 g/cc	0.162 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	290	290	Estimated from Rockwell C.
Hardness, Knoop	315	315	Estimated from Rockwell C.
Hardness, Rockwell C	30	30
Hardness, Vickers	304	304	Estimated from Rockwell C.
Tensile Strength	586 MPa @Temperature 427 °C	85000 psi @Temperature 801 °F
Tensile Strength, Ultimate	860 MPa	125000 psi
Tensile Strength, Yield	760 MPa	110000 psi
Elongation at Break	14 %	14 %
Tensile Modulus	115.8 GPa	16800 ksi
Modulus of Rigidity	24.0 GPa	3480 ksi
Compressive Yield Strength	790 MPa	115000 psi
Compressive Modulus	124 GPa	18000 ksi
Notched Tensile Strength	1210 MPa	175000 psi	K_t (stress concentration factor) = 5.8
Poissons Ratio	0.31	0.31	Typical for alpha titanium alloy.
Fatigue Strength	170 MPa @# of Cycles 1.00e+7	24700 psi @# of Cycles 1.00e+7	K_t (stress concentration factor) = 3.0
	280 MPa @# of Cycles 1.00e+7	40600 psi @# of Cycles 1.00e+7	unnotched
Fracture Toughness	100 MPa-m½	91.0 ksi-in½	K_IC
Shear Modulus	44.2 GPa	6410 ksi	Calculated from typical values.
Shear Strength	580 MPa	84100 psi	Ultimate shear strength
Charpy Impact	54.0 J	39.8 ft-lb	V-notch

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.000154 ohm-cm	0.000154 ohm-cm

Thermal Properties	Metric	English	Comments
CTE, linear	9.20 µm/m-°C @Temperature 20.0 - 93.0 °C	5.11 µin/in-°F @Temperature 68.0 - 199 °F
Specific Heat Capacity	0.550 J/g-°C	0.131 BTU/lb-°F	Estimated from similar materials
Thermal Conductivity	6.40 W/m-K	44.4 BTU-in/hr-ft²-°F
Melting Point	<= 1650 °C	<= 3000 °F	Estimated from similar materials
Liquidus	1650 °C	3000 °F	Estimated from similar materials
Beta Transus	1016 °C	1861 °F

Component Elements Properties	Metric	English	Comments
Aluminum, Al	6.0 %	6.0 %
Molybdenum, Mo	1.0 %	1.0 %
Niobium, Nb (Columbium, Cb)	2.0 %	2.0 %
Tantalum, Ta	1.0 %	1.0 %
Titanium, Ti	90 %	90 %

References for this datasheet.

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MTA612 / 14131

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