Titanium Grade 1


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: UNS R50250; ASTM Grade 1, CP titanium, C.P. titanium alloy

Component   Wt. %
CMax 0.1 
FeMax 0.2 
HMax 0.015 
N Max 0.03 
OMax 0.18 
Ti99.5 

Material Notes:
Information provided by Allvac and the references.

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

Physical PropertiesMetricEnglishComments
Density4.51 g/cc0.163 lb/in 

Mechanical Properties
Hardness, Brinell120120 annealed
Hardness, Knoop132132 Estimated from Brinell.
Hardness, Rockwell B7070 annealed
Hardness, Vickers122122 Estimated from Brinell.
Tensile Strength, Ultimate240 MPa34800 psi 
Tensile Strength, Yield170 - 310 MPa24700 - 45000 psi 
Elongation at Break24 %24 % 
Reduction of Area35 %35 % 
Modulus of Elasticity105 GPa15200 ksi In Tension
Compressive Modulus110 GPa16000 ksi 
Poisson's Ratio0.370.37 
Charpy Impact310 J229 ft-lb V-notch
Shear Modulus45 GPa6530 ksi 

Electrical Properties
Electrical Resistivity4.5e-005 ohm-cm4.5e-005 ohm-cm 

Thermal Properties
Heat of Fusion325 J/g140 BTU/lb High Purity Ti.
CTE, linear 20C8.6 m/m-C4.78 in/in-F 0-100C
CTE, linear 250C9.2 m/m-C5.11 in/in-F Average over the range 0--315C
CTE, linear 500C9.7 m/m-C5.39 in/in-F 0-540C; CTE is higher perpendicular to the c-axis
Specific Heat Capacity0.52 J/g-C0.124 BTU/lb-F Heat Capacity at 540C is 0.67 J/g-C
Thermal Conductivity16 W/m-K111 BTU-in/hr-ft-F annealed
Melting PointMax 1670 CMax 3040 F Liquidus
Liquidus1670 C3040 F 
Beta Transus888 C1630 F 

Optical Properties
Emissivity (0-1)0.30.3 High purity Ti at 710C
Reflection Coefficient, Visible (0-1)0.560.56 High purity Ti; visible light.

References for this datasheet.


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