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Grade 1 Titanium vs. Grade C-5 Titanium

Both grade 1 titanium and grade C-5 titanium are titanium alloys. They have 90% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade 1 titanium and the bottom bar is grade C-5 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
310
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 28
6.7
Fatigue Strength, MPa 170
510
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 39
40
Tensile Strength: Ultimate (UTS), MPa 310
1000
Tensile Strength: Yield (Proof), MPa 220
940

Thermal Properties

Latent Heat of Fusion, J/g 420
410
Maximum Temperature: Mechanical, °C 320
340
Melting Completion (Liquidus), °C 1660
1610
Melting Onset (Solidus), °C 1610
1560
Specific Heat Capacity, J/kg-K 540
560
Thermal Conductivity, W/m-K 20
7.1
Thermal Expansion, µm/m-K 8.8
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 37
36
Density, g/cm3 4.5
4.4
Embodied Carbon, kg CO2/kg material 31
38
Embodied Energy, MJ/kg 510
610
Embodied Water, L/kg 110
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
66
Resilience: Unit (Modulus of Resilience), kJ/m3 230
4200
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 19
63
Strength to Weight: Bending, points 23
50
Thermal Diffusivity, mm2/s 8.2
2.9
Thermal Shock Resistance, points 24
71

Alloy Composition


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Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0 to 0.080
0 to 0.1
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 0 to 0.2
0 to 0.4
Nickel (Ni), % 0
0 to 0.050
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0 to 0.25
Titanium (Ti), % 99.095 to 100
87.5 to 91
Vanadium (V), % 0
3.5 to 4.5
Residuals, % 0 to 0.4
0 to 0.4