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R30001 Cobalt vs. R56406 Titanium

R30001 cobalt belongs to the cobalt alloys classification, while R56406 titanium belongs to the titanium alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is R30001 cobalt and the bottom bar is R56406 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 1.0
9.1
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 86
40
Tensile Strength: Ultimate (UTS), MPa 620
980

Thermal Properties

Latent Heat of Fusion, J/g 310
410
Melting Completion (Liquidus), °C 1530
1610
Melting Onset (Solidus), °C 1260
1560
Specific Heat Capacity, J/kg-K 430
560
Thermal Conductivity, W/m-K 15
7.1
Thermal Expansion, µm/m-K 11
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
2.0

Otherwise Unclassified Properties

Density, g/cm3 9.0
4.5
Embodied Carbon, kg CO2/kg material 8.9
38
Embodied Energy, MJ/kg 130
610
Embodied Water, L/kg 460
200

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 22
35
Strength to Weight: Axial, points 19
61
Strength to Weight: Bending, points 18
49
Thermal Diffusivity, mm2/s 3.7
2.8
Thermal Shock Resistance, points 19
69

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 2.0 to 3.0
0 to 0.1
Chromium (Cr), % 28 to 32
0
Cobalt (Co), % 43 to 59
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 3.0
0 to 0.3
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Silicon (Si), % 0 to 2.0
0
Titanium (Ti), % 0
88.1 to 91
Tungsten (W), % 11 to 13
0
Vanadium (V), % 0
3.5 to 4.5