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Zamak 3 vs. SAE-AISI P21 Steel

Zamak 3 belongs to the zinc alloys classification, while SAE-AISI P21 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is Zamak 3 and the bottom bar is SAE-AISI P21 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 86
190
Poisson's Ratio 0.25
0.29
Shear Modulus, GPa 33
73
Tensile Strength: Ultimate (UTS), MPa 280
1130

Thermal Properties

Latent Heat of Fusion, J/g 120
250
Melting Completion (Liquidus), °C 390
1450
Melting Onset (Solidus), °C 380
1410
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 110
41
Thermal Expansion, µm/m-K 27
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 38
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 11
6.5
Density, g/cm3 6.4
7.9
Embodied Carbon, kg CO2/kg material 3.0
2.3
Embodied Energy, MJ/kg 57
32
Embodied Water, L/kg 380
62

Common Calculations

Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 12
40
Strength to Weight: Bending, points 15
31
Thermal Diffusivity, mm2/s 43
11
Thermal Shock Resistance, points 8.6
37

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0.18 to 0.22
Chromium (Cr), % 0
0 to 0.5
Cobalt (Co), % 0
1.1 to 1.3
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 0 to 0.1
92.1 to 94.2
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.020 to 0.060
0
Manganese (Mn), % 0
0.35 to 0.72
Nickel (Ni), % 0 to 0.020
3.9 to 4.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.030
0.2 to 0.4
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.0030
0
Vanadium (V), % 0
0.15 to 0.25
Zinc (Zn), % 95.3 to 96.5
0