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Zamak 7 vs. SAE-AISI 4320 Steel

Zamak 7 belongs to the zinc alloys classification, while SAE-AISI 4320 steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is Zamak 7 and the bottom bar is SAE-AISI 4320 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
160 to 240
Elastic (Young's, Tensile) Modulus, GPa 86
190
Elongation at Break, % 13
21 to 29
Fatigue Strength, MPa 47
320
Poisson's Ratio 0.25
0.29
Shear Modulus, GPa 33
73
Shear Strength, MPa 210
370 to 500
Tensile Strength: Ultimate (UTS), MPa 280
570 to 790
Tensile Strength: Yield (Proof), MPa 250
430 to 460

Thermal Properties

Latent Heat of Fusion, J/g 120
250
Maximum Temperature: Mechanical, °C 95
420
Melting Completion (Liquidus), °C 390
1460
Melting Onset (Solidus), °C 380
1420
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 110
46
Thermal Expansion, µm/m-K 27
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 38
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 11
3.4
Density, g/cm3 6.4
7.9
Embodied Carbon, kg CO2/kg material 3.0
1.7
Embodied Energy, MJ/kg 57
22
Embodied Water, L/kg 380
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 370
480 to 560
Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 12
20 to 28
Strength to Weight: Bending, points 15
19 to 24
Thermal Diffusivity, mm2/s 43
13
Thermal Shock Resistance, points 8.6
19 to 27

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0.17 to 0.22
Chromium (Cr), % 0
0.4 to 0.6
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.075
95.8 to 97
Lead (Pb), % 0 to 0.0030
0
Magnesium (Mg), % 0.0050 to 0.020
0
Manganese (Mn), % 0
0.45 to 0.65
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 0.0050 to 0.020
1.7 to 2.0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 0 to 0.0010
0
Zinc (Zn), % 95.3 to 96.5
0