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S21900 Stainless Steel vs. Zamak 5

S21900 stainless steel belongs to the iron alloys classification, while Zamak 5 belongs to the zinc alloys. There are 31 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is S21900 stainless steel and the bottom bar is Zamak 5.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
92
Elastic (Young's, Tensile) Modulus, GPa 200
87
Elongation at Break, % 50
6.3
Fatigue Strength, MPa 380
56
Poisson's Ratio 0.28
0.25
Shear Modulus, GPa 78
33
Shear Strength, MPa 510
260
Tensile Strength: Ultimate (UTS), MPa 710
330
Tensile Strength: Yield (Proof), MPa 390
240

Thermal Properties

Latent Heat of Fusion, J/g 290
120
Maximum Temperature: Mechanical, °C 980
95
Melting Completion (Liquidus), °C 1400
390
Melting Onset (Solidus), °C 1350
380
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 14
110
Thermal Expansion, µm/m-K 17
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
26
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
37

Otherwise Unclassified Properties

Base Metal Price, % relative 15
12
Density, g/cm3 7.7
6.4
Embodied Carbon, kg CO2/kg material 3.0
3.0
Embodied Energy, MJ/kg 43
57
Embodied Water, L/kg 160
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 300
19
Resilience: Unit (Modulus of Resilience), kJ/m3 380
330
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 26
14
Strength to Weight: Bending, points 23
16
Thermal Diffusivity, mm2/s 3.8
42
Thermal Shock Resistance, points 15
9.9

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 19 to 21.5
0
Copper (Cu), % 0
0.7 to 1.3
Iron (Fe), % 59.4 to 67.4
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 0
0.025 to 0.080
Manganese (Mn), % 8.0 to 10
0
Nickel (Ni), % 5.5 to 7.5
0 to 0.020
Nitrogen (N), % 0.15 to 0.4
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0 to 0.030
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0
94.3 to 95.7