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Zamak 7 vs. EN 1.4742 Stainless Steel

Zamak 7 belongs to the zinc alloys classification, while EN 1.4742 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is Zamak 7 and the bottom bar is EN 1.4742 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
180
Elastic (Young's, Tensile) Modulus, GPa 86
200
Elongation at Break, % 13
17
Fatigue Strength, MPa 47
180
Poisson's Ratio 0.25
0.28
Shear Modulus, GPa 33
77
Shear Strength, MPa 210
370
Tensile Strength: Ultimate (UTS), MPa 280
600
Tensile Strength: Yield (Proof), MPa 250
300

Thermal Properties

Latent Heat of Fusion, J/g 120
290
Maximum Temperature: Mechanical, °C 95
1000
Melting Completion (Liquidus), °C 390
1420
Melting Onset (Solidus), °C 380
1380
Specific Heat Capacity, J/kg-K 410
490
Thermal Conductivity, W/m-K 110
19
Thermal Expansion, µm/m-K 27
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 38
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.0
Density, g/cm3 6.4
7.6
Embodied Carbon, kg CO2/kg material 3.0
2.2
Embodied Energy, MJ/kg 57
32
Embodied Water, L/kg 380
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
84
Resilience: Unit (Modulus of Resilience), kJ/m3 370
230
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 12
22
Strength to Weight: Bending, points 15
21
Thermal Diffusivity, mm2/s 43
5.1
Thermal Shock Resistance, points 8.6
21

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0.7 to 1.2
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0 to 0.12
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.075
77.2 to 81.6
Lead (Pb), % 0 to 0.0030
0
Magnesium (Mg), % 0.0050 to 0.020
0
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0.0050 to 0.020
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0.7 to 1.4
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0 to 0.0010
0
Zinc (Zn), % 95.3 to 96.5
0