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Grey Cast Iron vs. Zamak 3

Grey cast iron belongs to the iron alloys classification, while Zamak 3 belongs to the zinc alloys. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grey cast iron and the bottom bar is Zamak 3.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 300
83
Compressive (Crushing) Strength, MPa 570 to 1290
410
Elastic (Young's, Tensile) Modulus, GPa 180
86
Elongation at Break, % 9.6
11
Fatigue Strength, MPa 69 to 170
48
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 69
33
Shear Strength, MPa 180 to 610
210
Tensile Strength: Ultimate (UTS), MPa 160 to 450
280
Tensile Strength: Yield (Proof), MPa 98 to 290
210

Thermal Properties

Latent Heat of Fusion, J/g 280
120
Melting Completion (Liquidus), °C 1380
390
Melting Onset (Solidus), °C 1180
380
Specific Heat Capacity, J/kg-K 490
410
Thermal Conductivity, W/m-K 46
110
Thermal Expansion, µm/m-K 11
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
27
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
38

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
11
Density, g/cm3 7.5
6.4
Embodied Carbon, kg CO2/kg material 1.5
3.0
Embodied Energy, MJ/kg 21
57
Embodied Water, L/kg 44
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 37
28
Resilience: Unit (Modulus of Resilience), kJ/m3 27 to 240
260
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 5.8 to 17
12
Strength to Weight: Bending, points 8.7 to 17
15
Thermal Diffusivity, mm2/s 13
43
Thermal Shock Resistance, points 6.0 to 17
8.6

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 3.1 to 3.4
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 92.1 to 93.9
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 0
0.020 to 0.060
Manganese (Mn), % 0.5 to 0.7
0
Nickel (Ni), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.9
0
Silicon (Si), % 2.5 to 2.8
0 to 0.030
Sulfur (S), % 0 to 0.15
0
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0
95.3 to 96.5