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SAE-AISI 1020 Steel vs. Zamak 7

SAE-AISI 1020 steel belongs to the iron alloys classification, while Zamak 7 belongs to the zinc alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1020 steel and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120 to 130
80
Elastic (Young's, Tensile) Modulus, GPa 190
86
Elongation at Break, % 17 to 28
13
Fatigue Strength, MPa 180 to 250
47
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 73
33
Shear Strength, MPa 280
210
Tensile Strength: Ultimate (UTS), MPa 430 to 460
280
Tensile Strength: Yield (Proof), MPa 240 to 380
250

Thermal Properties

Latent Heat of Fusion, J/g 250
120
Maximum Temperature: Mechanical, °C 400
95
Melting Completion (Liquidus), °C 1460
390
Melting Onset (Solidus), °C 1420
380
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 52
110
Thermal Expansion, µm/m-K 12
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
27
Electrical Conductivity: Equal Weight (Specific), % IACS 12
38

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
11
Density, g/cm3 7.9
6.4
Embodied Carbon, kg CO2/kg material 1.4
3.0
Embodied Energy, MJ/kg 18
57
Embodied Water, L/kg 45
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 72 to 100
36
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 380
370
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 15 to 16
12
Strength to Weight: Bending, points 16 to 17
15
Thermal Diffusivity, mm2/s 14
43
Thermal Shock Resistance, points 13 to 14
8.6

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0.18 to 0.23
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 99.08 to 99.52
0 to 0.075
Lead (Pb), % 0
0 to 0.0030
Magnesium (Mg), % 0
0.0050 to 0.020
Manganese (Mn), % 0.3 to 0.6
0
Nickel (Ni), % 0
0.0050 to 0.020
Phosphorus (P), % 0 to 0.040
0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0
0 to 0.0010
Zinc (Zn), % 0
95.3 to 96.5