MakeItFrom.com
Menu (ESC)

R30035 Cobalt vs. Zamak 2

R30035 cobalt belongs to the cobalt alloys classification, while Zamak 2 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 R30035 cobalt and the bottom bar is Zamak 2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220 to 230
87
Elongation at Break, % 9.0 to 46
6.0
Fatigue Strength, MPa 170 to 740
59
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 84 to 89
33
Tensile Strength: Ultimate (UTS), MPa 900 to 1900
360
Tensile Strength: Yield (Proof), MPa 300 to 1650
270

Thermal Properties

Latent Heat of Fusion, J/g 320
130
Melting Completion (Liquidus), °C 1440
390
Melting Onset (Solidus), °C 1320
380
Specific Heat Capacity, J/kg-K 440
410
Thermal Conductivity, W/m-K 11
110
Thermal Expansion, µm/m-K 13
28

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
25
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
35

Otherwise Unclassified Properties

Base Metal Price, % relative 100
12
Density, g/cm3 8.7
6.5
Embodied Carbon, kg CO2/kg material 10
3.0
Embodied Energy, MJ/kg 140
57
Embodied Water, L/kg 410
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160 to 320
20
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 5920
420
Stiffness to Weight: Axial, points 14 to 15
7.5
Stiffness to Weight: Bending, points 23 to 24
23
Strength to Weight: Axial, points 29 to 61
15
Strength to Weight: Bending, points 24 to 39
17
Thermal Diffusivity, mm2/s 3.0
41
Thermal Shock Resistance, points 23 to 46
11

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Boron (B), % 0 to 0.015
0
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0 to 0.025
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 29.1 to 39
0
Copper (Cu), % 0
2.5 to 3.3
Iron (Fe), % 0 to 1.0
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 0
0.020 to 0.060
Manganese (Mn), % 0 to 0.15
0
Molybdenum (Mo), % 9.0 to 10.5
0
Nickel (Ni), % 33 to 37
0 to 0.020
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.15
0 to 0.030
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0 to 1.0
0
Zinc (Zn), % 0
92.2 to 94