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ACI-ASTM CF20 Steel vs. Zamak 5

ACI-ASTM CF20 steel belongs to the iron alloys classification, while Zamak 5 belongs to the zinc alloys. There are 30 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 CF20 steel and the bottom bar is Zamak 5.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
92
Elastic (Young's, Tensile) Modulus, GPa 200
87
Elongation at Break, % 50
6.3
Fatigue Strength, MPa 240
56
Poisson's Ratio 0.28
0.25
Shear Modulus, GPa 77
33
Tensile Strength: Ultimate (UTS), MPa 530
330
Tensile Strength: Yield (Proof), MPa 250
240

Thermal Properties

Latent Heat of Fusion, J/g 300
120
Maximum Temperature: Mechanical, °C 970
95
Melting Completion (Liquidus), °C 1420
390
Melting Onset (Solidus), °C 1410
380
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 16
110
Thermal Expansion, µm/m-K 17
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
26
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
37

Otherwise Unclassified Properties

Base Metal Price, % relative 16
12
Density, g/cm3 7.8
6.4
Embodied Carbon, kg CO2/kg material 3.1
3.0
Embodied Energy, MJ/kg 44
57
Embodied Water, L/kg 150
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
19
Resilience: Unit (Modulus of Resilience), kJ/m3 160
330
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 19
14
Strength to Weight: Bending, points 19
16
Thermal Diffusivity, mm2/s 4.3
42
Thermal Shock Resistance, points 11
9.9

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0
0.7 to 1.3
Iron (Fe), % 64.2 to 74
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 0
0.025 to 0.080
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 8.0 to 11
0 to 0.020
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0 to 0.030
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0
94.3 to 95.7