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EN 2.4964 Cobalt vs. C61000 Bronze

EN 2.4964 cobalt belongs to the cobalt alloys classification, while C61000 bronze belongs to the copper 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 EN 2.4964 cobalt and the bottom bar is C61000 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 40
29 to 50
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 86
42
Tensile Strength: Ultimate (UTS), MPa 960
390 to 460
Tensile Strength: Yield (Proof), MPa 390
150 to 190

Thermal Properties

Latent Heat of Fusion, J/g 290
220
Melting Completion (Liquidus), °C 1630
1040
Melting Onset (Solidus), °C 1550
990
Specific Heat Capacity, J/kg-K 400
420
Thermal Conductivity, W/m-K 15
69
Thermal Expansion, µm/m-K 12
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
15
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
16

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.5
Embodied Carbon, kg CO2/kg material 9.8
3.0
Embodied Energy, MJ/kg 140
49
Embodied Water, L/kg 450
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
110 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 340
100 to 160
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 21
19
Strength to Weight: Axial, points 28
13 to 15
Strength to Weight: Bending, points 23
14 to 16
Thermal Diffusivity, mm2/s 3.9
19
Thermal Shock Resistance, points 25
14 to 16

Alloy Composition


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Aluminum (Al), % 0
6.0 to 8.5
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
90.2 to 94
Iron (Fe), % 0 to 3.0
0 to 0.5
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
0 to 0.1
Sulfur (S), % 0 to 0.015
0
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.5