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Zamak 3 vs. SAE-AISI H21 Steel

Zamak 3 belongs to the zinc alloys classification, while SAE-AISI H21 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is Zamak 3 and the bottom bar is SAE-AISI H21 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 86
200
Poisson's Ratio 0.25
0.29
Shear Modulus, GPa 33
76
Tensile Strength: Ultimate (UTS), MPa 280
720 to 1790

Thermal Properties

Latent Heat of Fusion, J/g 120
250
Melting Completion (Liquidus), °C 390
1630
Melting Onset (Solidus), °C 380
1580
Specific Heat Capacity, J/kg-K 410
440
Thermal Conductivity, W/m-K 110
27
Thermal Expansion, µm/m-K 27
11

Otherwise Unclassified Properties

Base Metal Price, % relative 11
23
Density, g/cm3 6.4
8.5
Embodied Carbon, kg CO2/kg material 3.0
4.5
Embodied Energy, MJ/kg 57
68
Embodied Water, L/kg 380
72

Common Calculations

Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 12
23 to 58
Strength to Weight: Bending, points 15
21 to 38
Thermal Diffusivity, mm2/s 43
7.1
Thermal Shock Resistance, points 8.6
24 to 59

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0.28 to 0.36
Chromium (Cr), % 0
3.0 to 3.8
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 0 to 0.1
87.6 to 93.8
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.020 to 0.060
0
Manganese (Mn), % 0
0.15 to 0.4
Nickel (Ni), % 0 to 0.020
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.030
0.15 to 0.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.0030
0
Tungsten (W), % 0
8.5 to 10
Vanadium (V), % 0
0.3 to 0.6
Zinc (Zn), % 95.3 to 96.5
0