Titanium Beta III (Ti-11.5Mo-6Zr-4.5Sn; Grade 10), ST 775°C, Aged 495°C

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Titanium Beta III (Ti-11.5Mo-6Zr-4.5Sn; Grade 10), ST 775°C, Aged 495°C
Categories:	Metal; Nonferrous Metal; Titanium Alloy; Beta Titanium Alloy
Material Notes:	Microstructure: Beta alloy, can be aged without forming intermetallic compounds. Characteristics: High strength, good hardenability, good resistance to stress corrosion, good cold-formability. Applications: Aircraft fasteners and sheet metal parts, to a lesser extent - plate and forging applications. 5 other heat treatments of this alloy are in MatWeb.
Key Words:	Ti-11.5Mo-6Zr-4.5Sn; UNS R58030; Beta 3
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Physical Properties	Original Value	Comments

Density	5.06 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Vickers	350
Tensile Strength, Ultimate	1320 MPa
Tensile Strength, Yield	1230 MPa
Elongation at Break	4.0 %
Reduction of Area	35 %
Modulus of Elasticity	108 GPa	Sample STA 720°C/495°C
Compressive Yield Strength	1370 MPa
Notched Tensile Strength	1450 MPa	K_t (stress concentration factor) = 6.1
Poissons Ratio	0.31	After ST 720ºC , Aged 495ºC
Fatigue Strength	150 MPa @# of Cycles 1.00e+7	K_t (stress concentration factor) = 6.1 (STA sheet)
	290 MPa @# of Cycles 30000	K_t (stress concentration factor) = 6.1 (STA sheet)
	950 MPa @# of Cycles 1.00e+7	(plate), Unnotched
	1050 MPa @# of Cycles 20000	(plate), Unnotched
Shear Modulus	41.0 GPa

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.000156 ohm-cm
Magnetic Permeability	1.0

Thermal Properties	Original Value	Comments
CTE, linear	7.60 µm/m-°C @Temperature 20.0 - 100 °C
	8.10 µm/m-°C @Temperature 20.0 - 315 °C	average
	8.70 µm/m-°C @Temperature 20.0 - 540 °C	average
Specific Heat Capacity	0.525 J/g-°C	Typical value for titanium alloys.
Thermal Conductivity	6.28 W/m-K
Melting Point	1573 - 1690 °C
Solidus	1573 °C
Liquidus	1690 °C
Beta Transus	760 °C	Slow transition kinetics

Component Elements Properties	Original Value	Comments
Carbon, C	<= 0.10 %
Hydrogen, H	<= 0.020 %
Iron, Fe	<= 0.35 %
Molybdenum, Mo	11.5 %
Nitrogen, N	<= 0.050 %
Other, each	<= 0.010 %
Other, total	<= 0.040 %
Oxygen, O	<= 0.18 %
Tin, Sn	4.5 %
Titanium, Ti	78 %
Zirconium, Zr	6.0 %

References for this datasheet.

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MTB034 / 14156

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