Titanium Grade 2

Subcategory: Metal; Nonferrous Metal; Titanium Alloy; Unalloyed/Modified Titanium

Close Analogs: 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

Component    Wt. % C Max 0.1   Fe Max 0.3   H Max 0.015   N Max 0.03   O Max 0.25   Ti 99.2

Material Notes:
Information provided by Allvac and the references.

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

Physical Properties	Metric	English	Comments
Density	4.51 g/cc	0.163 lb/in³
Mechanical Properties
Hardness, Knoop	170	170
Hardness, Rockwell B	80	80
Hardness, Vickers	145	145
Tensile Strength, Ultimate	344 MPa	49900 psi
Tensile Strength, Yield	275 - 410 MPa	39900 - 59500 psi
Elongation at Break	20 %	20 %
Reduction of Area	35 %	35 %
Modulus of Elasticity	105 GPa	15200 ksi	In Tension
Compressive Modulus	110 GPa	16000 ksi
Poisson's Ratio	0.37	0.37
Izod Impact	114 - 171 J	84.1 - 126 ft-lb
Fatigue Strength	300 MPa	43500 psi	1E+7 cycles, Unnotched
Fatigue Strength	425 MPa	61600 psi	30,000 cycles, Unnotched
Fracture Toughness	66 MPa-m½	60.1 ksi-in½	K(Q); annealed
Shear Modulus	45 GPa	6530 ksi
Electrical Properties
Electrical Resistivity	5.2e-005 ohm-cm	5.2e-005 ohm-cm
Thermal Properties
Heat of Fusion	325 J/g	140 BTU/lb	High Purity Ti.
CTE, linear 20°C	8.6 µm/m-°C	4.78 µin/in-°F	0-100ºC
CTE, linear 250°C	9.2 µm/m-°C	5.11 µin/in-°F	Average over the range 0-315ºC
CTE, linear 500°C	9.7 µm/m-°C	5.39 µin/in-°F	0-540ºC; CTE is higher perpendicular to the c-axis
Specific Heat Capacity	0.523 J/g-°C	0.125 BTU/lb-°F	at 540ºC value is 0.67 J/g-ºC
Thermal Conductivity	16.4 W/m-K	114 BTU-in/hr-ft²-°F	annealed
Melting Point	Max 1665 °C	Max 3030 °F	Liquidus
Liquidus	1665 °C	3030 °F
Beta Transus	913 °C	1680 °F
Optical Properties
Emissivity (0-1)	0.3	0.3	High purity Ti at 710°C
Reflection Coefficient, Visible (0-1)	0.56	0.56	High purity Ti; visible light.

References for this datasheet.