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G-CoCr28 Cobalt vs. Grade 24 Titanium

G-CoCr28 cobalt belongs to the cobalt alloys classification, while grade 24 titanium belongs to the titanium alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is G-CoCr28 cobalt and the bottom bar is grade 24 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Elongation at Break, % 6.7
11
Fatigue Strength, MPa 130
550
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 83
40
Tensile Strength: Ultimate (UTS), MPa 560
1010
Tensile Strength: Yield (Proof), MPa 260
940

Thermal Properties

Latent Heat of Fusion, J/g 320
410
Maximum Temperature: Mechanical, °C 1200
340
Melting Completion (Liquidus), °C 1330
1610
Melting Onset (Solidus), °C 1270
1560
Specific Heat Capacity, J/kg-K 470
560
Thermal Conductivity, W/m-K 8.5
7.1
Thermal Expansion, µm/m-K 14
9.6

Otherwise Unclassified Properties

Density, g/cm3 8.1
4.5
Embodied Carbon, kg CO2/kg material 6.2
43
Embodied Energy, MJ/kg 84
710
Embodied Water, L/kg 440
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
110
Resilience: Unit (Modulus of Resilience), kJ/m3 160
4160
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 19
63
Strength to Weight: Bending, points 19
50
Thermal Diffusivity, mm2/s 2.2
2.9
Thermal Shock Resistance, points 14
72

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0.050 to 0.25
0 to 0.080
Chromium (Cr), % 27 to 30
0
Cobalt (Co), % 48 to 52
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 9.7 to 24.5
0 to 0.4
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 4.0
0
Niobium (Nb), % 0 to 0.5
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0.5 to 1.5
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
87.5 to 91
Vanadium (V), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4