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Zamak 7 vs. AISI 442 Stainless Steel

Zamak 7 belongs to the zinc alloys classification, while AISI 442 stainless 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 AISI 442 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
190
Elastic (Young's, Tensile) Modulus, GPa 86
200
Elongation at Break, % 13
23
Fatigue Strength, MPa 47
210
Poisson's Ratio 0.25
0.27
Shear Modulus, GPa 33
78
Shear Strength, MPa 210
370
Tensile Strength: Ultimate (UTS), MPa 280
580
Tensile Strength: Yield (Proof), MPa 250
310

Thermal Properties

Latent Heat of Fusion, J/g 120
290
Maximum Temperature: Mechanical, °C 95
960
Melting Completion (Liquidus), °C 390
1430
Melting Onset (Solidus), °C 380
1390
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 110
22
Thermal Expansion, µm/m-K 27
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 38
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 11
10
Density, g/cm3 6.4
7.7
Embodied Carbon, kg CO2/kg material 3.0
2.3
Embodied Energy, MJ/kg 57
32
Embodied Water, L/kg 380
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
110
Resilience: Unit (Modulus of Resilience), kJ/m3 370
250
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 12
21
Strength to Weight: Bending, points 15
20
Thermal Diffusivity, mm2/s 43
5.8
Thermal Shock Resistance, points 8.6
20

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0 to 0.2
Chromium (Cr), % 0
18 to 23
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.075
74.1 to 82
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 to 0.6
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 0 to 0.0010
0
Zinc (Zn), % 95.3 to 96.5
0