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EN 2.4964 Cobalt vs. C90300 Bronze

EN 2.4964 cobalt belongs to the cobalt alloys classification, while C90300 bronze belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 2.4964 cobalt and the bottom bar is C90300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 40
22
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 86
41
Tensile Strength: Ultimate (UTS), MPa 960
330
Tensile Strength: Yield (Proof), MPa 390
150

Thermal Properties

Latent Heat of Fusion, J/g 290
190
Melting Completion (Liquidus), °C 1630
1000
Melting Onset (Solidus), °C 1550
850
Specific Heat Capacity, J/kg-K 400
370
Thermal Conductivity, W/m-K 15
75
Thermal Expansion, µm/m-K 12
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
12
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
12

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.7
Embodied Carbon, kg CO2/kg material 9.8
3.4
Embodied Energy, MJ/kg 140
56
Embodied Water, L/kg 450
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
59
Resilience: Unit (Modulus of Resilience), kJ/m3 340
110
Stiffness to Weight: Axial, points 13
7.0
Stiffness to Weight: Bending, points 21
18
Strength to Weight: Axial, points 28
11
Strength to Weight: Bending, points 23
12
Thermal Diffusivity, mm2/s 3.9
23
Thermal Shock Resistance, points 25
12

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
86 to 89
Iron (Fe), % 0 to 3.0
0 to 0.2
Lead (Pb), % 0
0 to 0.3
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 9.0 to 11
0 to 1.0
Phosphorus (P), % 0 to 0.020
0 to 1.5
Silicon (Si), % 0 to 0.4
0 to 0.0050
Sulfur (S), % 0 to 0.015
0 to 0.050
Tin (Sn), % 0
7.5 to 9.0
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
3.0 to 5.0
Residuals, % 0
0 to 0.6