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Zamak 3 vs. Automotive Grey Cast Iron

Zamak 3 belongs to the zinc alloys classification, while automotive grey cast iron belongs to the iron 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 Zamak 3 and the bottom bar is automotive grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 83
160 to 280
Elastic (Young's, Tensile) Modulus, GPa 86
180
Elongation at Break, % 11
9.6 to 14
Poisson's Ratio 0.25
0.29
Shear Modulus, GPa 33
69 to 70
Tensile Strength: Ultimate (UTS), MPa 280
140 to 290
Tensile Strength: Yield (Proof), MPa 210
94 to 200

Thermal Properties

Latent Heat of Fusion, J/g 120
260 to 280
Melting Completion (Liquidus), °C 390
1380 to 1390
Melting Onset (Solidus), °C 380
1340 to 1350
Specific Heat Capacity, J/kg-K 410
490
Thermal Conductivity, W/m-K 110
41 to 43
Thermal Expansion, µm/m-K 27
12 to 14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.4 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 38
8.8 to 9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 11
1.9 to 3.0
Density, g/cm3 6.4
7.5 to 7.6
Embodied Carbon, kg CO2/kg material 3.0
1.5 to 1.7
Embodied Energy, MJ/kg 57
21 to 24
Embodied Water, L/kg 380
44 to 51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28
18 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 260
25 to 110
Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 12
5.2 to 11
Strength to Weight: Bending, points 15
8.0 to 13
Thermal Diffusivity, mm2/s 43
11 to 12
Thermal Shock Resistance, points 8.6
4.2 to 8.6