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Zamak 3 vs. R30006 Cobalt

Zamak 3 belongs to the zinc alloys classification, while R30006 cobalt belongs to the cobalt alloys. There are 28 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is Zamak 3 and the bottom bar is R30006 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 410
1520
Elastic (Young's, Tensile) Modulus, GPa 86
220
Elongation at Break, % 11
1.0
Fatigue Strength, MPa 48
260
Poisson's Ratio 0.25
0.28
Shear Modulus, GPa 33
85
Tensile Strength: Ultimate (UTS), MPa 280
900
Tensile Strength: Yield (Proof), MPa 210
540

Thermal Properties

Latent Heat of Fusion, J/g 120
320
Melting Completion (Liquidus), °C 390
1400
Melting Onset (Solidus), °C 380
1290
Specific Heat Capacity, J/kg-K 410
450
Thermal Conductivity, W/m-K 110
15
Thermal Expansion, µm/m-K 27
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 38
1.7

Otherwise Unclassified Properties

Density, g/cm3 6.4
8.6
Embodied Carbon, kg CO2/kg material 3.0
7.8
Embodied Energy, MJ/kg 57
110
Embodied Water, L/kg 380
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28
7.8
Resilience: Unit (Modulus of Resilience), kJ/m3 260
670
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 12
29
Strength to Weight: Bending, points 15
24
Thermal Diffusivity, mm2/s 43
3.9
Thermal Shock Resistance, points 8.6
26

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0.9 to 1.4
Chromium (Cr), % 0
27 to 32
Cobalt (Co), % 0
48.6 to 68.1
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
4.0 to 6.0
Zinc (Zn), % 95.3 to 96.5
0