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EN 2.4964 Cobalt vs. C63020 Bronze

EN 2.4964 cobalt belongs to the cobalt alloys classification, while C63020 bronze belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 2.4964 cobalt and the bottom bar is C63020 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
120
Elongation at Break, % 40
6.8
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 86
44
Tensile Strength: Ultimate (UTS), MPa 960
1020
Tensile Strength: Yield (Proof), MPa 390
740

Thermal Properties

Latent Heat of Fusion, J/g 290
230
Melting Completion (Liquidus), °C 1630
1070
Melting Onset (Solidus), °C 1550
1020
Specific Heat Capacity, J/kg-K 400
450
Thermal Conductivity, W/m-K 15
40
Thermal Expansion, µm/m-K 12
18

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.2
Embodied Carbon, kg CO2/kg material 9.8
3.6
Embodied Energy, MJ/kg 140
58
Embodied Water, L/kg 450
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
63
Resilience: Unit (Modulus of Resilience), kJ/m3 340
2320
Stiffness to Weight: Axial, points 13
8.0
Stiffness to Weight: Bending, points 21
20
Strength to Weight: Axial, points 28
34
Strength to Weight: Bending, points 23
27
Thermal Diffusivity, mm2/s 3.9
11
Thermal Shock Resistance, points 25
35

Alloy Composition


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Aluminum (Al), % 0
10 to 11
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0 to 0.050
Cobalt (Co), % 46.4 to 58
0 to 0.2
Copper (Cu), % 0
74.7 to 81.8
Iron (Fe), % 0 to 3.0
4.0 to 5.5
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0 to 2.0
0 to 1.5
Nickel (Ni), % 9.0 to 11
4.2 to 6.0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 0.25
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
0 to 0.3
Residuals, % 0
0 to 0.5