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Zamak 7 vs. EN 1.7240 Steel

Zamak 7 belongs to the zinc alloys classification, while EN 1.7240 steel belongs to the iron alloys. There are 25 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 7 and the bottom bar is EN 1.7240 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
200 to 480
Elastic (Young's, Tensile) Modulus, GPa 86
190
Poisson's Ratio 0.25
0.29
Shear Modulus, GPa 33
73
Tensile Strength: Ultimate (UTS), MPa 280
670 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 120
250
Maximum Temperature: Mechanical, °C 95
420
Melting Completion (Liquidus), °C 390
1460
Melting Onset (Solidus), °C 380
1410
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 110
44
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 38
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.4
Density, g/cm3 6.4
7.8
Embodied Carbon, kg CO2/kg material 3.0
1.5
Embodied Energy, MJ/kg 57
20
Embodied Water, L/kg 380
50

Common Calculations

Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 12
24 to 71
Strength to Weight: Bending, points 15
22 to 45
Thermal Diffusivity, mm2/s 43
12
Thermal Shock Resistance, points 8.6
20 to 59

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0.56 to 0.64
Chromium (Cr), % 0
0.7 to 1.0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.075
96.7 to 97.9
Lead (Pb), % 0 to 0.0030
0
Magnesium (Mg), % 0.0050 to 0.020
0
Manganese (Mn), % 0
0.7 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 0.0050 to 0.020
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0
0 to 0.025
Tin (Sn), % 0 to 0.0010
0
Zinc (Zn), % 95.3 to 96.5
0