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EN 2.4964 Cobalt vs. C18900 Copper

EN 2.4964 cobalt belongs to the cobalt alloys classification, while C18900 copper belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 2.4964 cobalt and the bottom bar is C18900 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
120
Elongation at Break, % 40
14 to 48
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 86
43
Tensile Strength: Ultimate (UTS), MPa 960
260 to 500
Tensile Strength: Yield (Proof), MPa 390
67 to 390

Thermal Properties

Latent Heat of Fusion, J/g 290
210
Melting Completion (Liquidus), °C 1630
1080
Melting Onset (Solidus), °C 1550
1020
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 15
130
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
30
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
30

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.9
Embodied Carbon, kg CO2/kg material 9.8
2.7
Embodied Energy, MJ/kg 140
42
Embodied Water, L/kg 450
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
65 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 340
20 to 660
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 21
18
Strength to Weight: Axial, points 28
8.2 to 16
Strength to Weight: Bending, points 23
10 to 16
Thermal Diffusivity, mm2/s 3.9
38
Thermal Shock Resistance, points 25
9.3 to 18

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
97.7 to 99.15
Iron (Fe), % 0 to 3.0
0
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0 to 2.0
0.1 to 0.3
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.020
0 to 0.050
Silicon (Si), % 0 to 0.4
0.15 to 0.4
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0.6 to 0.9
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.5