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Zamak 2 vs. S21800 Stainless Steel

Zamak 2 belongs to the zinc alloys classification, while S21800 stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is Zamak 2 and the bottom bar is S21800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100
210
Elastic (Young's, Tensile) Modulus, GPa 87
190
Elongation at Break, % 6.0
40
Fatigue Strength, MPa 59
330
Poisson's Ratio 0.26
0.28
Rockwell B Hardness 63
88
Shear Modulus, GPa 33
75
Shear Strength, MPa 320
510
Tensile Strength: Ultimate (UTS), MPa 360
740
Tensile Strength: Yield (Proof), MPa 270
390

Thermal Properties

Latent Heat of Fusion, J/g 130
340
Maximum Temperature: Mechanical, °C 95
900
Melting Completion (Liquidus), °C 390
1360
Melting Onset (Solidus), °C 380
1310
Specific Heat Capacity, J/kg-K 410
500
Thermal Expansion, µm/m-K 28
16

Otherwise Unclassified Properties

Base Metal Price, % relative 12
15
Density, g/cm3 6.5
7.5
Embodied Carbon, kg CO2/kg material 3.0
3.1
Embodied Energy, MJ/kg 57
45
Embodied Water, L/kg 380
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
250
Resilience: Unit (Modulus of Resilience), kJ/m3 420
390
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
26
Strength to Weight: Axial, points 15
27
Strength to Weight: Bending, points 17
24
Thermal Shock Resistance, points 11
17

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 2.5 to 3.3
0
Iron (Fe), % 0 to 0.1
59.1 to 65.4
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.020 to 0.060
0
Manganese (Mn), % 0
7.0 to 9.0
Nickel (Ni), % 0 to 0.020
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0
0 to 0.060
Silicon (Si), % 0 to 0.030
3.5 to 4.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.0030
0
Zinc (Zn), % 92.2 to 94
0