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Zamak 7 vs. EN 1.7725 Steel

Zamak 7 belongs to the zinc alloys classification, while EN 1.7725 steel belongs to the iron 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 Zamak 7 and the bottom bar is EN 1.7725 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
250 to 300
Elastic (Young's, Tensile) Modulus, GPa 86
190
Elongation at Break, % 13
14
Fatigue Strength, MPa 47
390 to 550
Poisson's Ratio 0.25
0.29
Shear Modulus, GPa 33
73
Tensile Strength: Ultimate (UTS), MPa 280
830 to 1000
Tensile Strength: Yield (Proof), MPa 250
610 to 860

Thermal Properties

Latent Heat of Fusion, J/g 120
250
Maximum Temperature: Mechanical, °C 95
440
Melting Completion (Liquidus), °C 390
1460
Melting Onset (Solidus), °C 380
1420
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 110
39
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 38
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.9
Density, g/cm3 6.4
7.8
Embodied Carbon, kg CO2/kg material 3.0
1.8
Embodied Energy, MJ/kg 57
24
Embodied Water, L/kg 380
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
110 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 370
980 to 1940
Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 12
29 to 35
Strength to Weight: Bending, points 15
25 to 28
Thermal Diffusivity, mm2/s 43
11
Thermal Shock Resistance, points 8.6
24 to 29

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0.27 to 0.34
Chromium (Cr), % 0
1.3 to 1.7
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.075
95.7 to 97.5
Lead (Pb), % 0 to 0.0030
0
Magnesium (Mg), % 0.0050 to 0.020
0
Manganese (Mn), % 0
0.6 to 1.0
Molybdenum (Mo), % 0
0.3 to 0.5
Nickel (Ni), % 0.0050 to 0.020
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.0010
0
Vanadium (V), % 0
0.050 to 0.15
Zinc (Zn), % 95.3 to 96.5
0