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Zamak 3 vs. R30001 Cobalt

Zamak 3 belongs to the zinc alloys classification, while R30001 cobalt belongs to the cobalt alloys. There are 24 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is Zamak 3 and the bottom bar is R30001 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 410
1930
Elastic (Young's, Tensile) Modulus, GPa 86
220
Elongation at Break, % 11
1.0
Poisson's Ratio 0.25
0.28
Shear Modulus, GPa 33
86
Tensile Strength: Ultimate (UTS), MPa 280
620

Thermal Properties

Latent Heat of Fusion, J/g 120
310
Melting Completion (Liquidus), °C 390
1530
Melting Onset (Solidus), °C 380
1260
Specific Heat Capacity, J/kg-K 410
430
Thermal Conductivity, W/m-K 110
15
Thermal Expansion, µm/m-K 27
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 38
1.8

Otherwise Unclassified Properties

Density, g/cm3 6.4
9.0
Embodied Carbon, kg CO2/kg material 3.0
8.9
Embodied Energy, MJ/kg 57
130
Embodied Water, L/kg 380
460

Common Calculations

Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 12
19
Strength to Weight: Bending, points 15
18
Thermal Diffusivity, mm2/s 43
3.7
Thermal Shock Resistance, points 8.6
19

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
2.0 to 3.0
Chromium (Cr), % 0
28 to 32
Cobalt (Co), % 0
43 to 59
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.1
0 to 3.0
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.020 to 0.060
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0 to 0.020
0 to 3.0
Silicon (Si), % 0 to 0.030
0 to 2.0
Tin (Sn), % 0 to 0.0030
0
Tungsten (W), % 0
11 to 13
Zinc (Zn), % 95.3 to 96.5
0