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EN 2.4964 Cobalt vs. C67300 Bronze

EN 2.4964 cobalt belongs to the cobalt alloys classification, while C67300 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 C67300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 40
12
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 86
41
Tensile Strength: Ultimate (UTS), MPa 960
500
Tensile Strength: Yield (Proof), MPa 390
340

Thermal Properties

Latent Heat of Fusion, J/g 290
190
Melting Completion (Liquidus), °C 1630
870
Melting Onset (Solidus), °C 1550
830
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 15
95
Thermal Expansion, µm/m-K 12
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
22
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
25

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.0
Embodied Carbon, kg CO2/kg material 9.8
2.7
Embodied Energy, MJ/kg 140
46
Embodied Water, L/kg 450
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
55
Resilience: Unit (Modulus of Resilience), kJ/m3 340
550
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 21
20
Strength to Weight: Axial, points 28
17
Strength to Weight: Bending, points 23
17
Thermal Diffusivity, mm2/s 3.9
30
Thermal Shock Resistance, points 25
16

Alloy Composition


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Aluminum (Al), % 0
0 to 0.25
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
58 to 63
Iron (Fe), % 0 to 3.0
0 to 0.5
Lead (Pb), % 0
0.4 to 3.0
Manganese (Mn), % 0 to 2.0
2.0 to 3.5
Nickel (Ni), % 9.0 to 11
0 to 0.25
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
0.5 to 1.5
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 0.3
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
27.2 to 39.1
Residuals, % 0
0 to 0.5