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ACI-ASTM CE8MN Steel vs. Zamak 7

ACI-ASTM CE8MN steel belongs to the iron alloys classification, while Zamak 7 belongs to the zinc alloys. There are 29 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CE8MN steel and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
86
Elongation at Break, % 29
13
Fatigue Strength, MPa 370
47
Poisson's Ratio 0.27
0.25
Shear Modulus, GPa 80
33
Tensile Strength: Ultimate (UTS), MPa 750
280
Tensile Strength: Yield (Proof), MPa 500
250

Thermal Properties

Latent Heat of Fusion, J/g 300
120
Maximum Temperature: Mechanical, °C 1100
95
Melting Completion (Liquidus), °C 1440
390
Melting Onset (Solidus), °C 1400
380
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 16
110
Thermal Expansion, µm/m-K 13
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
27
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
38

Otherwise Unclassified Properties

Base Metal Price, % relative 21
11
Density, g/cm3 7.8
6.4
Embodied Carbon, kg CO2/kg material 4.2
3.0
Embodied Energy, MJ/kg 58
57
Embodied Water, L/kg 180
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
36
Resilience: Unit (Modulus of Resilience), kJ/m3 620
370
Stiffness to Weight: Axial, points 15
7.5
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 27
12
Strength to Weight: Bending, points 23
15
Thermal Diffusivity, mm2/s 4.2
43
Thermal Shock Resistance, points 21
8.6

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 22.5 to 25.5
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 56 to 66.4
0 to 0.075
Lead (Pb), % 0
0 to 0.0030
Magnesium (Mg), % 0
0.0050 to 0.020
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 3.0 to 4.5
0
Nickel (Ni), % 8.0 to 11
0.0050 to 0.020
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 0.0010
Zinc (Zn), % 0
95.3 to 96.5