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S32550 Stainless Steel vs. Z21721 Zinc

S32550 stainless steel belongs to the iron alloys classification, while Z21721 zinc belongs to the zinc alloys. There are 28 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 S32550 stainless steel and the bottom bar is Z21721 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
87
Elongation at Break, % 21
40
Poisson's Ratio 0.27
0.25
Shear Modulus, GPa 80
35
Tensile Strength: Ultimate (UTS), MPa 860
150
Tensile Strength: Yield (Proof), MPa 620
120

Thermal Properties

Latent Heat of Fusion, J/g 300
110
Maximum Temperature: Mechanical, °C 1100
90
Melting Completion (Liquidus), °C 1440
410
Melting Onset (Solidus), °C 1390
390
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 16
110
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
27
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
37

Otherwise Unclassified Properties

Base Metal Price, % relative 20
11
Density, g/cm3 7.8
6.6
Embodied Carbon, kg CO2/kg material 3.8
2.8
Embodied Energy, MJ/kg 53
53
Embodied Water, L/kg 180
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
57
Resilience: Unit (Modulus of Resilience), kJ/m3 940
88
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 31
6.4
Strength to Weight: Bending, points 26
9.6
Thermal Diffusivity, mm2/s 4.4
44
Thermal Shock Resistance, points 23
4.8

Alloy Composition

Aluminum (Al), % 0
0 to 0.0020
Cadmium (Cd), % 0
0 to 0.070
Carbon (C), % 0 to 0.040
0
Chromium (Cr), % 24 to 27
0
Copper (Cu), % 1.5 to 2.5
0 to 0.0050
Iron (Fe), % 57.2 to 67
0 to 0.010
Lead (Pb), % 0
0 to 1.0
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 2.9 to 3.9
0
Nickel (Ni), % 4.5 to 6.5
0
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.020
Zinc (Zn), % 0
98.9 to 100