MakeItFrom.com
Menu (ESC)

R30012 Cobalt vs. Zamak 5

R30012 cobalt belongs to the cobalt alloys classification, while Zamak 5 belongs to the zinc alloys. There are 28 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 R30012 cobalt and the bottom bar is Zamak 5.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 1770
600
Elastic (Young's, Tensile) Modulus, GPa 220
87
Elongation at Break, % 1.0
6.3
Fatigue Strength, MPa 320
56
Poisson's Ratio 0.28
0.25
Shear Modulus, GPa 86
33
Tensile Strength: Ultimate (UTS), MPa 830
330
Tensile Strength: Yield (Proof), MPa 650
240

Thermal Properties

Latent Heat of Fusion, J/g 320
120
Melting Completion (Liquidus), °C 1470
390
Melting Onset (Solidus), °C 1280
380
Specific Heat Capacity, J/kg-K 440
410
Thermal Conductivity, W/m-K 15
110
Thermal Expansion, µm/m-K 12
27

Electrical Properties

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

Otherwise Unclassified Properties

Density, g/cm3 8.8
6.4
Embodied Carbon, kg CO2/kg material 8.3
3.0
Embodied Energy, MJ/kg 120
57
Embodied Water, L/kg 480
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.7
19
Resilience: Unit (Modulus of Resilience), kJ/m3 960
330
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 26
14
Strength to Weight: Bending, points 22
16
Thermal Diffusivity, mm2/s 3.8
42
Thermal Shock Resistance, points 23
9.9

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 1.4 to 2.0
0
Chromium (Cr), % 27 to 32
0
Cobalt (Co), % 47.5 to 64.1
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
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0 to 0.020
Silicon (Si), % 0 to 2.0
0 to 0.030
Tin (Sn), % 0
0 to 0.0030
Tungsten (W), % 7.5 to 9.5
0
Zinc (Zn), % 0
94.3 to 95.7