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EN 2.4964 Cobalt vs. C70250 Copper

EN 2.4964 cobalt belongs to the cobalt alloys classification, while C70250 copper belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 2.4964 cobalt and the bottom bar is C70250 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
120
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 86
44
Tensile Strength: Ultimate (UTS), MPa 960
520 to 740

Thermal Properties

Latent Heat of Fusion, J/g 290
220
Melting Completion (Liquidus), °C 1630
1100
Melting Onset (Solidus), °C 1550
1080
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 15
170
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
36 to 50
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
37 to 51

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.9
Embodied Carbon, kg CO2/kg material 9.8
2.9
Embodied Energy, MJ/kg 140
45
Embodied Water, L/kg 450
310

Common Calculations

Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 21
18
Strength to Weight: Axial, points 28
16 to 23
Strength to Weight: Bending, points 23
16 to 21
Thermal Diffusivity, mm2/s 3.9
49
Thermal Shock Resistance, points 25
18 to 26

Alloy Composition


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Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
92.7 to 97.5
Iron (Fe), % 0 to 3.0
0
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0
0.050 to 0.3
Manganese (Mn), % 0 to 2.0
0 to 0.1
Nickel (Ni), % 9.0 to 11
2.2 to 4.2
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
0.25 to 1.2
Sulfur (S), % 0 to 0.015
0
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5