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Zamak 3 vs. S82121 Stainless Steel

Zamak 3 belongs to the zinc alloys classification, while S82121 stainless steel belongs to the iron alloys. There are 31 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 3 and the bottom bar is S82121 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 83
250
Elastic (Young's, Tensile) Modulus, GPa 86
200
Elongation at Break, % 11
28
Fatigue Strength, MPa 48
370
Poisson's Ratio 0.25
0.27
Shear Modulus, GPa 33
78
Shear Strength, MPa 210
470
Tensile Strength: Ultimate (UTS), MPa 280
730
Tensile Strength: Yield (Proof), MPa 210
510

Thermal Properties

Latent Heat of Fusion, J/g 120
290
Maximum Temperature: Mechanical, °C 95
1020
Melting Completion (Liquidus), °C 390
1430
Melting Onset (Solidus), °C 380
1380
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 110
15
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 38
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 11
14
Density, g/cm3 6.4
7.7
Embodied Carbon, kg CO2/kg material 3.0
2.8
Embodied Energy, MJ/kg 57
40
Embodied Water, L/kg 380
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28
180
Resilience: Unit (Modulus of Resilience), kJ/m3 260
660
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 12
26
Strength to Weight: Bending, points 15
23
Thermal Diffusivity, mm2/s 43
4.0
Thermal Shock Resistance, points 8.6
20

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0 to 0.035
Chromium (Cr), % 0
21 to 23
Copper (Cu), % 0 to 0.25
0.2 to 1.2
Iron (Fe), % 0 to 0.1
66.7 to 75.4
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.020 to 0.060
0
Manganese (Mn), % 0
1.0 to 2.5
Molybdenum (Mo), % 0
0.3 to 1.3
Nickel (Ni), % 0 to 0.020
2.0 to 4.0
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.030
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 0 to 0.0030
0
Zinc (Zn), % 95.3 to 96.5
0