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Grade 23 Titanium vs. Grade C-5 Titanium

Both grade 23 titanium and grade C-5 titanium are titanium alloys. Their average alloy composition is basically identical. 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 23 titanium and the bottom bar is grade C-5 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 6.7 to 11
6.7
Fatigue Strength, MPa 470 to 500
510
Poisson's Ratio 0.32
0.32
Rockwell C Hardness 32
34
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 930 to 940
1000
Tensile Strength: Yield (Proof), MPa 850 to 870
940

Thermal Properties

Latent Heat of Fusion, J/g 410
410
Maximum Temperature: Mechanical, °C 340
340
Melting Completion (Liquidus), °C 1610
1610
Melting Onset (Solidus), °C 1560
1560
Specific Heat Capacity, J/kg-K 560
560
Thermal Conductivity, W/m-K 7.1
7.1
Thermal Expansion, µm/m-K 9.4
9.6

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 61 to 100
66
Resilience: Unit (Modulus of Resilience), kJ/m3 3430 to 3560
4200
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 58 to 59
63
Strength to Weight: Bending, points 48
50
Thermal Diffusivity, mm2/s 2.9
2.9
Thermal Shock Resistance, points 67 to 68
71

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
5.5 to 6.8
Carbon (C), % 0 to 0.080
0 to 0.1
Hydrogen (H), % 0 to 0.013
0 to 0.015
Iron (Fe), % 0 to 0.25
0 to 0.4
Nickel (Ni), % 0
0 to 0.050
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.13
0 to 0.25
Titanium (Ti), % 88.1 to 91
87.5 to 91
Vanadium (V), % 3.5 to 4.5
3.5 to 4.5
Residuals, % 0
0 to 0.4