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EN 2.4964 Cobalt vs. Zamak 5

EN 2.4964 cobalt belongs to the cobalt alloys classification, while Zamak 5 belongs to the zinc alloys. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 2.4964 cobalt and the bottom bar is Zamak 5.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
87
Elongation at Break, % 40
6.3
Fatigue Strength, MPa 220
56
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 86
33
Tensile Strength: Ultimate (UTS), MPa 960
330
Tensile Strength: Yield (Proof), MPa 390
240

Thermal Properties

Latent Heat of Fusion, J/g 290
120
Melting Completion (Liquidus), °C 1630
390
Melting Onset (Solidus), °C 1550
380
Specific Heat Capacity, J/kg-K 400
410
Thermal Conductivity, W/m-K 15
110
Thermal Expansion, µm/m-K 12
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
26
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
37

Otherwise Unclassified Properties

Density, g/cm3 9.6
6.4
Embodied Carbon, kg CO2/kg material 9.8
3.0
Embodied Energy, MJ/kg 140
57
Embodied Water, L/kg 450
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
19
Resilience: Unit (Modulus of Resilience), kJ/m3 340
330
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 21
23
Strength to Weight: Axial, points 28
14
Strength to Weight: Bending, points 23
16
Thermal Diffusivity, mm2/s 3.9
42
Thermal Shock Resistance, points 25
9.9

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
0.7 to 1.3
Iron (Fe), % 0 to 3.0
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 0
0.025 to 0.080
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 9.0 to 11
0 to 0.020
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
0 to 0.030
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 0.0030
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
94.3 to 95.7