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Zamak 2 vs. S82031 Stainless Steel

Zamak 2 belongs to the zinc alloys classification, while S82031 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is Zamak 2 and the bottom bar is S82031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
200
Elongation at Break, % 6.0
39
Fatigue Strength, MPa 59
490
Poisson's Ratio 0.26
0.28
Shear Modulus, GPa 33
78
Shear Strength, MPa 320
540
Tensile Strength: Ultimate (UTS), MPa 360
780
Tensile Strength: Yield (Proof), MPa 270
570

Thermal Properties

Latent Heat of Fusion, J/g 130
290
Maximum Temperature: Mechanical, °C 95
980
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
15
Thermal Expansion, µm/m-K 28
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 35
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 12
13
Density, g/cm3 6.5
7.7
Embodied Carbon, kg CO2/kg material 3.0
2.8
Embodied Energy, MJ/kg 57
39
Embodied Water, L/kg 380
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
280
Resilience: Unit (Modulus of Resilience), kJ/m3 420
820
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 15
28
Strength to Weight: Bending, points 17
24
Thermal Diffusivity, mm2/s 41
3.9
Thermal Shock Resistance, points 11
22

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
19 to 22
Copper (Cu), % 2.5 to 3.3
0 to 1.0
Iron (Fe), % 0 to 0.1
68 to 78.3
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.020 to 0.060
0
Manganese (Mn), % 0
0 to 2.5
Molybdenum (Mo), % 0
0.6 to 1.4
Nickel (Ni), % 0 to 0.020
2.0 to 4.0
Nitrogen (N), % 0
0.14 to 0.24
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.030
0 to 0.8
Sulfur (S), % 0
0 to 0.0050
Tin (Sn), % 0 to 0.0030
0
Zinc (Zn), % 92.2 to 94
0