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Zamak 3 vs. ACI-ASTM CK20 Steel

Zamak 3 belongs to the zinc alloys classification, while ACI-ASTM CK20 steel belongs to the iron alloys. There are 30 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 ACI-ASTM CK20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 83
150
Elastic (Young's, Tensile) Modulus, GPa 86
200
Elongation at Break, % 11
37
Fatigue Strength, MPa 48
220
Poisson's Ratio 0.25
0.28
Shear Modulus, GPa 33
78
Tensile Strength: Ultimate (UTS), MPa 280
530
Tensile Strength: Yield (Proof), MPa 210
260

Thermal Properties

Latent Heat of Fusion, J/g 120
310
Maximum Temperature: Mechanical, °C 95
1100
Melting Completion (Liquidus), °C 390
1400
Melting Onset (Solidus), °C 380
1430
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 110
14
Thermal Expansion, µm/m-K 27
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 38
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
25
Density, g/cm3 6.4
7.8
Embodied Carbon, kg CO2/kg material 3.0
4.4
Embodied Energy, MJ/kg 57
62
Embodied Water, L/kg 380
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28
160
Resilience: Unit (Modulus of Resilience), kJ/m3 260
170
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 12
19
Strength to Weight: Bending, points 15
19
Thermal Diffusivity, mm2/s 43
3.7
Thermal Shock Resistance, points 8.6
13

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0 to 0.2
Chromium (Cr), % 0
23 to 27
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.1
46.7 to 58
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.020 to 0.060
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.020
19 to 22
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.030
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 0 to 0.0030
0
Zinc (Zn), % 95.3 to 96.5
0