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ACI-ASTM CF3M Steel vs. Zamak 7

ACI-ASTM CF3M steel belongs to the iron alloys classification, while Zamak 7 belongs to the zinc alloys. There are 30 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CF3M steel and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
80
Elastic (Young's, Tensile) Modulus, GPa 200
86
Elongation at Break, % 55
13
Fatigue Strength, MPa 270
47
Poisson's Ratio 0.28
0.25
Shear Modulus, GPa 78
33
Tensile Strength: Ultimate (UTS), MPa 520
280
Tensile Strength: Yield (Proof), MPa 260
250

Thermal Properties

Latent Heat of Fusion, J/g 300
120
Maximum Temperature: Mechanical, °C 990
95
Melting Completion (Liquidus), °C 1440
390
Melting Onset (Solidus), °C 1430
380
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 16
110
Thermal Expansion, µm/m-K 15
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
27
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
38

Otherwise Unclassified Properties

Base Metal Price, % relative 19
11
Density, g/cm3 7.9
6.4
Embodied Carbon, kg CO2/kg material 3.8
3.0
Embodied Energy, MJ/kg 53
57
Embodied Water, L/kg 160
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
36
Resilience: Unit (Modulus of Resilience), kJ/m3 170
370
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 18
12
Strength to Weight: Bending, points 18
15
Thermal Diffusivity, mm2/s 4.3
43
Thermal Shock Resistance, points 12
8.6

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17 to 21
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 59.9 to 72
0 to 0.075
Lead (Pb), % 0
0 to 0.0030
Magnesium (Mg), % 0
0.0050 to 0.020
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 9.0 to 13
0.0050 to 0.020
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