Titanium Grade 2
Categories: Metal; Nonferrous Metal; Titanium Alloy; Unalloyed/Modified Titanium
Material Notes: Information provided by Allvac and the references.

Characteristics: Higher ductility, lower strength when compared to Ti alloys

Applications: Airframe components, cryogenic vessels, heat exchangers, CPI equipment, condenser tubing, pickling baskets.

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 2; UNS R50400, CP titanium, C.P. titanium alloy
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Physical PropertiesMetricEnglishComments
Density 4.51 g/cc0.163 lb/in³
 
Chemical PropertiesMetricEnglishComments
Thermal Neutron Cross Section 5.6 barns/atom5.6 barns/atomAverage for naturally occurring Ti
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 200200
Hardness, Knoop 170170
Hardness, Rockwell B 8080
Hardness, Vickers 145145
Tensile Strength  103 - 138 MPa
@Temperature 540 °C		14900 - 20000 psi
@Temperature 1000 °F
 131 - 186 MPa
@Temperature 425 °C		19000 - 27000 psi
@Temperature 797 °F
 172 - 207 MPa
@Temperature 315 °C		24900 - 30000 psi
@Temperature 599 °F
 207 - 228 MPa
@Temperature 205 °C		30000 - 33100 psi
@Temperature 401 °F
Tensile Strength, Ultimate 344 MPa49900 psi
Tensile Strength, Yield 276 - 448 MPa40000 - 65000 psi
 62.0 - 76.0 MPa
@Temperature 540 °C		8990 - 11000 psi
@Temperature 1000 °F		0.2% offset
 76.0 - 103 MPa
@Temperature 425 °C		11000 - 14900 psi
@Temperature 797 °F		0.2% offset
 90.0 - 124 MPa
@Temperature 315 °C		13100 - 18000 psi
@Temperature 599 °F		0.2% offset
 138 - 152 MPa
@Temperature 205 °C		20000 - 22000 psi
@Temperature 401 °F		0.2% offset
Elongation at Break 20 %20 %
 24 - 28 %
@Temperature 425 °C		24 - 28 %
@Temperature 797 °F		In 50 mm
 30 - 35 %
@Temperature 540 °C		30 - 35 %
@Temperature 1000 °F		In 50 mm
 30 - 38 %
@Temperature 315 °C		30 - 38 %
@Temperature 599 °F		In 50 mm
 38 - 45 %
@Temperature 205 °C		38 - 45 %
@Temperature 401 °F		In 50 mm
Reduction of Area 30 %30 %
 55 - 65 %
@Temperature 205 °C		55 - 65 %
@Temperature 401 °F
 70 - 80 %
@Temperature 315 °C		70 - 80 %
@Temperature 599 °F
 70 - 80 %
@Temperature 425 °C		70 - 80 %
@Temperature 797 °F
 70 - 80 %
@Temperature 540 °C		70 - 80 %
@Temperature 1000 °F
Tensile Modulus 103 GPa14900 ksi
Compressive Modulus 110 GPa16000 ksi
Poissons Ratio 0.370.37
Fatigue Strength  300 MPa
@# of Cycles 1.00e+7 		43500 psi
@# of Cycles 1.00e+7 		unnotched
 425 MPa
@# of Cycles 30000 		61600 psi
@# of Cycles 30000 		Unnotched
Fracture Toughness 66.0 MPa-m½60.1 ksi-in½K(Q); annealed
Shear Modulus 45.0 GPa6530 ksi
Izod Impact 114 - 171 J84.1 - 126 ft-lb
Charpy Impact  100 J
@Temperature 200 °C		73.8 ft-lb
@Temperature 392 °F		Notched
 115 J
@Temperature 300 °C		84.8 ft-lb
@Temperature 572 °F		Notched
 115 J
@Temperature 100 °C		84.8 ft-lb
@Temperature 212 °F		Notched
 160 J
@Temperature 0.000 °C		118 ft-lb
@Temperature 32.0 °F		Notched
 175 J
@Temperature -100 °C		129 ft-lb
@Temperature -148 °F		Notched
Coefficient of Friction, Dynamic 0.680.68Ti sliding on Ti; 300 m/min
 0.800.80Ti sliding on Ti; 40 m/min
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000520 ohm-cm0.0000520 ohm-cm
Magnetic Permeability 1.000051.00005at 1.6 kA/m
Magnetic Susceptibility 4.0e-84.0e-8kg; Paramagnetic
 
Thermal PropertiesMetricEnglishComments
Heat of Fusion 325 J/g140 BTU/lbHigh Purity Ti.
CTE, linear  8.60 µm/m-°C
@Temperature 0.000 - 100 °C		4.78 µin/in-°F
@Temperature 32.0 - 212 °F
 9.20 µm/m-°C
@Temperature 0.000 - 315 °C		5.11 µin/in-°F
@Temperature 32.0 - 599 °F		average
 9.70 µm/m-°C
@Temperature 0.000 - 540 °C		5.39 µin/in-°F
@Temperature 32.0 - 1000 °F		perpendicular to the c-axis
Specific Heat Capacity  0.523 J/g-°C
@Temperature 20.0 °C		0.125 BTU/lb-°F
@Temperature 68.0 °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
 0.670 J/g-°C
@Temperature 540 °C		0.160 BTU/lb-°F
@Temperature 1000 °F
 0.690 J/g-°C
@Temperature 600 °C		0.165 BTU/lb-°F
@Temperature 1110 °F
Thermal Conductivity 16.4 W/m-K114 BTU-in/hr-ft²-°Fannealed
Melting Point <= 1665 °C<= 3029 °F
Liquidus 1665 °C3029 °F
Beta Transus 913 °C1680 °F
 
Optical PropertiesMetricEnglishComments
Emissivity (0-1) 0.30
@Temperature 710 °C		0.30
@Temperature 1310 °F		High purity Ti
Reflection Coefficient, Visible (0-1) 0.560.56High purity Ti; visible light.
 
Component Elements PropertiesMetricEnglishComments
Carbon, C <= 0.10 %<= 0.10 %
Hydrogen, H <= 0.015 %<= 0.015 %
Iron, Fe <= 0.30 %<= 0.30 %
Nitrogen, N <= 0.030 %<= 0.030 %
Other, total <= 0.30 %<= 0.30 %
Oxygen, O <= 0.25 %<= 0.25 %
Titanium, Ti >= 98.885 %>= 98.885 %
 
Descriptive Properties
Crystal Structurebccabove 913°C
 cphbelow 890°C

References for this datasheet.

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