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Zamak 5 vs. R30003 Cobalt

Zamak 5 belongs to the zinc alloys classification, while R30003 cobalt belongs to the cobalt 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 Zamak 5 and the bottom bar is R30003 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
210
Elongation at Break, % 6.3
10 to 73
Fatigue Strength, MPa 56
320 to 560
Poisson's Ratio 0.25
0.29
Shear Modulus, GPa 33
83
Tensile Strength: Ultimate (UTS), MPa 330
970 to 1720
Tensile Strength: Yield (Proof), MPa 240
510 to 1090

Thermal Properties

Latent Heat of Fusion, J/g 120
310
Melting Completion (Liquidus), °C 390
1400
Melting Onset (Solidus), °C 380
1440
Specific Heat Capacity, J/kg-K 410
450
Thermal Conductivity, W/m-K 110
13
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 37
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 12
95
Density, g/cm3 6.4
8.4
Embodied Carbon, kg CO2/kg material 3.0
8.0
Embodied Energy, MJ/kg 57
110
Embodied Water, L/kg 380
400

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 330
600 to 2790
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 14
32 to 57
Strength to Weight: Bending, points 16
26 to 38
Thermal Diffusivity, mm2/s 42
3.3
Thermal Shock Resistance, points 9.9
26 to 45

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Boron (B), % 0
0 to 0.1
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
39 to 41
Copper (Cu), % 0.7 to 1.3
0
Iron (Fe), % 0 to 0.1
10 to 20.5
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.025 to 0.080
0
Manganese (Mn), % 0
1.5 to 2.5
Molybdenum (Mo), % 0
6.0 to 8.0
Nickel (Ni), % 0 to 0.020
14 to 16
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.030
0 to 1.2
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0 to 0.0030
0
Zinc (Zn), % 94.3 to 95.7
0