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Zamak 7 vs. EN 1.7729 Steel

Zamak 7 belongs to the zinc alloys classification, while EN 1.7729 steel belongs to the iron alloys. There are 31 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 1.7729 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
270
Elastic (Young's, Tensile) Modulus, GPa 86
190
Elongation at Break, % 13
17
Fatigue Strength, MPa 47
500
Poisson's Ratio 0.25
0.29
Shear Modulus, GPa 33
73
Shear Strength, MPa 210
560
Tensile Strength: Ultimate (UTS), MPa 280
910
Tensile Strength: Yield (Proof), MPa 250
750

Thermal Properties

Latent Heat of Fusion, J/g 120
250
Maximum Temperature: Mechanical, °C 95
430
Melting Completion (Liquidus), °C 390
1470
Melting Onset (Solidus), °C 380
1430
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 110
40
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 38
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 11
3.8
Density, g/cm3 6.4
7.8
Embodied Carbon, kg CO2/kg material 3.0
3.3
Embodied Energy, MJ/kg 57
49
Embodied Water, L/kg 380
59

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
150
Resilience: Unit (Modulus of Resilience), kJ/m3 370
1500
Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 12
32
Strength to Weight: Bending, points 15
27
Thermal Diffusivity, mm2/s 43
11
Thermal Shock Resistance, points 8.6
27

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0.015 to 0.080
Arsenic (As), % 0
0 to 0.020
Boron (B), % 0
0.0010 to 0.010
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0.17 to 0.23
Chromium (Cr), % 0
0.9 to 1.2
Copper (Cu), % 0 to 0.25
0 to 0.2
Iron (Fe), % 0 to 0.075
94.8 to 97
Lead (Pb), % 0 to 0.0030
0
Magnesium (Mg), % 0.0050 to 0.020
0
Manganese (Mn), % 0
0.35 to 0.75
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0.0050 to 0.020
0 to 0.2
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0 to 0.0010
0 to 0.020
Titanium (Ti), % 0
0.070 to 0.15
Vanadium (V), % 0
0.6 to 0.8
Zinc (Zn), % 95.3 to 96.5
0