Titanium Grade 3, Annealed

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Titanium Grade 3, Annealed
Categories:	Metal; Nonferrous Metal; Titanium Alloy; Unalloyed/Modified Titanium
Material Notes:	Information provided by Allvac and the references. Applications: Airframe skin, heat exchangers, cryogenic vessels, components for CPI equipment, condenser tubing, exhaust pipe shrouds. Sample was annealed 2 hr at 700°C. Forms typically available: billet, bar, plate, sheet, strip, rod, wire, extrusions, tubing. Titanium Grades 1,2,3,4,7,11,and 12 are all considered unalloyed and have similar mechanical properties.
Key Words:	ASTM Grade 3; UNS R50550, CP titanium, C.P. titanium alloy
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Physical Properties	Metric	English	Comments

Density	4.50 g/cc	0.163 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	225	225
Hardness, Knoop	289	289	Estimated from Rockwell C.
Hardness, Rockwell C	26	26
Hardness, Vickers	280	280	Estimated from Rockwell C.
Tensile Strength	234 MPa @Temperature 316 °C	33900 psi @Temperature 601 °F
Tensile Strength, Ultimate	520 MPa	75400 psi
Tensile Strength, Yield	450 MPa	65300 psi
Elongation at Break	25 %	25 %
Creep Strength	103 MPa @Temperature 316 °C, Time >=3.60e+6 sec	14900 psi @Temperature 601 °F, Time >=1000 hour	strain 3%
Rupture Strength	>= 172 MPa @Temperature 316 °C, Time 3.60e+6 sec	>= 24900 psi @Temperature 601 °F, Time 1000 hour
Tensile Modulus	104 GPa	15100 ksi
Modulus of Rigidity	38.6 GPa	5600 ksi
Compressive Modulus	114 GPa	16500 ksi
Notched Tensile Strength	790 MPa	115000 psi	K_t (stress concentration factor) = 3.0
Ultimate Bearing Strength	920 MPa	133000 psi
Bearing Yield Strength	650 MPa	94300 psi
Poissons Ratio	0.34	0.34
Fatigue Strength	250 MPa @# of Cycles 1.00e+7	36300 psi @# of Cycles 1.00e+7	K_t (stress concentration factor) = 2.7
	280 MPa @# of Cycles 1.00e+7	40600 psi @# of Cycles 1.00e+7
	290 MPa @# of Cycles 1.00e+6	42100 psi @# of Cycles 1.00e+6
	295 MPa @# of Cycles 100000	42800 psi @# of Cycles 100000
	340 MPa @# of Cycles 10000	49300 psi @# of Cycles 10000
	340 MPa @# of Cycles 1.00e+7	49300 psi @# of Cycles 1.00e+7	unnotched
Shear Modulus	39.0 GPa	5660 ksi
Charpy Impact	27.0 J	19.9 ft-lb	V-notch
Bend Radius, Minimum	2.5 t @Thickness >=1.80 mm	2.5 t @Thickness >=0.0709 in

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000540 ohm-cm	0.0000540 ohm-cm
	0.0000900 ohm-cm @Temperature 250 °C	0.0000900 ohm-cm @Temperature 482 °F
	0.000120 ohm-cm @Temperature 500 °C	0.000120 ohm-cm @Temperature 932 °F
	0.000150 ohm-cm @Temperature 750 °C	0.000150 ohm-cm @Temperature 1380 °F

Thermal Properties	Metric	English	Comments
Heat of Fusion	325 J/g	140 BTU/lb	High Purity Ti.
CTE, linear	8.60 µm/m-°C @Temperature 20.0 - 93.0 °C	4.78 µin/in-°F @Temperature 68.0 - 199 °F
	9.20 µm/m-°C @Temperature 200 °C	5.11 µin/in-°F @Temperature 392 °F
	19.9 µm/m-°C @Temperature 20.0 °C	11.1 µin/in-°F @Temperature 68.0 °F	perpendicular
Specific Heat Capacity	0.523 J/g-°C	0.125 BTU/lb-°F
	0.560 J/g-°C @Temperature 200 °C	0.134 BTU/lb-°F @Temperature 392 °F
	0.620 J/g-°C @Temperature 400 °C	0.148 BTU/lb-°F @Temperature 752 °F
	0.690 J/g-°C @Temperature 600 °C	0.165 BTU/lb-°F @Temperature 1110 °F
Thermal Conductivity	16.4 W/m-K	114 BTU-in/hr-ft²-°F
	18.1 W/m-K @Temperature 200 °C	126 BTU-in/hr-ft²-°F @Temperature 392 °F
	18.1 W/m-K @Temperature 400 °C	126 BTU-in/hr-ft²-°F @Temperature 752 °F
	19.1 W/m-K @Temperature 600 °C	133 BTU-in/hr-ft²-°F @Temperature 1110 °F
	21.5 W/m-K @Temperature 800 °C	149 BTU-in/hr-ft²-°F @Temperature 1470 °F
Melting Point	<= 1660 °C	<= 3020 °F
Liquidus	1660 °C	3020 °F
Beta Transus	920 °C	1690 °F

Optical Properties	Metric	English	Comments
Emissivity (0-1)	0.30 @Temperature 710 °C	0.30 @Temperature 1310 °F	High purity Ti
Reflection Coefficient, Visible (0-1)	0.56	0.56	High purity Ti; visible light.

Component Elements Properties	Metric	English	Comments
Carbon, C	<= 0.10 %	<= 0.10 %
Hydrogen, H	<= 0.015 %	<= 0.015 %
Iron, Fe	<= 0.30 %	<= 0.30 %
Nitrogen, N	<= 0.050 %	<= 0.050 %
Other, total	<= 0.30 %	<= 0.30 %
Oxygen, O	<= 0.35 %	<= 0.35 %
Titanium, Ti	99.1 %	99.1 %

References for this datasheet.

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MTU031 / 14262

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