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Zamak 2 vs. ACI-ASTM CN7MS Steel

Zamak 2 belongs to the zinc alloys classification, while ACI-ASTM CN7MS steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is Zamak 2 and the bottom bar is ACI-ASTM CN7MS steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100
160
Elastic (Young's, Tensile) Modulus, GPa 87
200
Elongation at Break, % 6.0
39
Fatigue Strength, MPa 59
200
Poisson's Ratio 0.26
0.28
Shear Modulus, GPa 33
77
Tensile Strength: Ultimate (UTS), MPa 360
540
Tensile Strength: Yield (Proof), MPa 270
230

Thermal Properties

Latent Heat of Fusion, J/g 130
340
Maximum Temperature: Mechanical, °C 95
1040
Melting Completion (Liquidus), °C 390
1400
Melting Onset (Solidus), °C 380
1350
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 110
12
Thermal Expansion, µm/m-K 28
16

Otherwise Unclassified Properties

Base Metal Price, % relative 12
28
Density, g/cm3 6.5
7.9
Embodied Carbon, kg CO2/kg material 3.0
5.1
Embodied Energy, MJ/kg 57
71
Embodied Water, L/kg 380
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
170
Resilience: Unit (Modulus of Resilience), kJ/m3 420
140
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 15
19
Strength to Weight: Bending, points 17
19
Thermal Diffusivity, mm2/s 41
3.2
Thermal Shock Resistance, points 11
13

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
18 to 20
Copper (Cu), % 2.5 to 3.3
1.5 to 2.0
Iron (Fe), % 0 to 0.1
45.4 to 53.5
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.020 to 0.060
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 0 to 0.020
22 to 25
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.030
2.5 to 3.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.0030
0
Zinc (Zn), % 92.2 to 94
0