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S81921 Stainless Steel vs. Z20301 Zinc

S81921 stainless steel belongs to the iron alloys classification, while Z20301 zinc belongs to the zinc alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is S81921 stainless steel and the bottom bar is Z20301 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
87
Elongation at Break, % 29
53
Poisson's Ratio 0.28
0.25
Shear Modulus, GPa 79
35
Tensile Strength: Ultimate (UTS), MPa 710
160
Tensile Strength: Yield (Proof), MPa 500
130

Thermal Properties

Latent Heat of Fusion, J/g 290
110
Maximum Temperature: Mechanical, °C 990
90
Melting Completion (Liquidus), °C 1430
410
Melting Onset (Solidus), °C 1390
400
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 15
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 14
11
Density, g/cm3 7.7
6.6
Embodied Carbon, kg CO2/kg material 2.9
2.8
Embodied Energy, MJ/kg 41
53
Embodied Water, L/kg 150
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
78
Resilience: Unit (Modulus of Resilience), kJ/m3 630
96
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 25
6.7
Strength to Weight: Bending, points 23
9.9
Thermal Diffusivity, mm2/s 4.0
44
Thermal Shock Resistance, points 20
5.0

Alloy Composition

Aluminum (Al), % 0
0 to 0.0020
Cadmium (Cd), % 0
0 to 0.010
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 19 to 22
0
Copper (Cu), % 0
0 to 0.0050
Iron (Fe), % 66.7 to 75.9
0 to 0.010
Lead (Pb), % 0
0 to 0.1
Manganese (Mn), % 2.0 to 4.0
0
Molybdenum (Mo), % 1.0 to 2.0
0
Nickel (Ni), % 2.0 to 4.0
0
Nitrogen (N), % 0.14 to 0.2
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
99.853 to 100