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. % C Max 0.1   Fe Max 0.2   H Max 0.015   N Max 0.03   O Max 0.18   Ti 99.5

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, Brinell	120	120	annealed
Hardness, Knoop	132	132	Estimated from Brinell.
Hardness, Rockwell B	70	70	annealed
Hardness, Vickers	122	122	Estimated from Brinell.
Tensile Strength, Ultimate	240 MPa	34800 psi
Tensile Strength, Yield	170 - 310 MPa	24700 - 45000 psi
Elongation at Break	24 %	24 %
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
Charpy Impact	310 J	229 ft-lb	V-notch
Shear Modulus	45 GPa	6530 ksi
Electrical Properties
Electrical Resistivity	4.5e-005 ohm-cm	4.5e-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	0.52 J/g-°C	0.124 BTU/lb-°F	Heat Capacity at 540ºC is 0.67 J/g-ºC
Thermal Conductivity	16 W/m-K	111 BTU-in/hr-ft²-°F	annealed
Melting Point	Max 1670 °C	Max 3040 °F	Liquidus
Liquidus	1670 °C	3040 °F
Beta Transus	888 °C	1630 °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.