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Zamak 2 vs. Ductile Cast Iron

Zamak 2 belongs to the zinc alloys classification, while ductile cast iron belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is Zamak 2 and the bottom bar is ductile cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100
160 to 310
Elastic (Young's, Tensile) Modulus, GPa 87
170 to 180
Elongation at Break, % 6.0
2.1 to 20
Poisson's Ratio 0.26
0.28 to 0.31
Shear Modulus, GPa 33
64 to 70
Shear Strength, MPa 320
420 to 800
Tensile Strength: Ultimate (UTS), MPa 360
460 to 920
Tensile Strength: Yield (Proof), MPa 270
310 to 670

Thermal Properties

Latent Heat of Fusion, J/g 130
270
Maximum Temperature: Mechanical, °C 95
290
Melting Completion (Liquidus), °C 390
1160
Melting Onset (Solidus), °C 380
1120
Specific Heat Capacity, J/kg-K 410
490
Thermal Conductivity, W/m-K 110
31 to 36
Thermal Expansion, µm/m-K 28
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 35
8.8 to 9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.9
Density, g/cm3 6.5
7.1 to 7.5
Embodied Carbon, kg CO2/kg material 3.0
1.5
Embodied Energy, MJ/kg 57
21
Embodied Water, L/kg 380
43

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
17 to 80
Resilience: Unit (Modulus of Resilience), kJ/m3 420
280 to 1330
Stiffness to Weight: Axial, points 7.5
12 to 14
Stiffness to Weight: Bending, points 23
24 to 26
Strength to Weight: Axial, points 15
17 to 35
Strength to Weight: Bending, points 17
18 to 29
Thermal Diffusivity, mm2/s 41
8.9 to 10
Thermal Shock Resistance, points 11
17 to 35

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
3.0 to 3.5
Copper (Cu), % 2.5 to 3.3
0
Iron (Fe), % 0 to 0.1
93.7 to 95.5
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.020 to 0.060
0
Nickel (Ni), % 0 to 0.020
0
Phosphorus (P), % 0
0 to 0.080
Silicon (Si), % 0 to 0.030
1.5 to 2.8
Tin (Sn), % 0 to 0.0030
0
Zinc (Zn), % 92.2 to 94
0