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Zamak 2 vs. S20432 Stainless Steel

Zamak 2 belongs to the zinc alloys classification, while S20432 stainless steel belongs to the iron alloys. There are 32 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 2 and the bottom bar is S20432 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100
170
Elastic (Young's, Tensile) Modulus, GPa 87
200
Elongation at Break, % 6.0
45
Fatigue Strength, MPa 59
210
Poisson's Ratio 0.26
0.28
Rockwell B Hardness 63
81
Shear Modulus, GPa 33
76
Shear Strength, MPa 320
400
Tensile Strength: Ultimate (UTS), MPa 360
580
Tensile Strength: Yield (Proof), MPa 270
230

Thermal Properties

Latent Heat of Fusion, J/g 130
280
Maximum Temperature: Mechanical, °C 95
900
Melting Completion (Liquidus), °C 390
1410
Melting Onset (Solidus), °C 380
1370
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 110
15
Thermal Expansion, µm/m-K 28
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 35
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 12
13
Density, g/cm3 6.5
7.8
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 57
38
Embodied Water, L/kg 380
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
210
Resilience: Unit (Modulus of Resilience), kJ/m3 420
140
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 15
21
Strength to Weight: Bending, points 17
20
Thermal Diffusivity, mm2/s 41
4.0
Thermal Shock Resistance, points 11
13

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
17 to 18
Copper (Cu), % 2.5 to 3.3
2.0 to 3.0
Iron (Fe), % 0 to 0.1
66.7 to 74
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.020 to 0.060
0
Manganese (Mn), % 0
3.0 to 5.0
Nickel (Ni), % 0 to 0.020
4.0 to 6.0
Nitrogen (N), % 0
0.050 to 0.2
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.030
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.0030
0
Zinc (Zn), % 92.2 to 94
0