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S15500 Stainless Steel vs. Z21721 Zinc

S15500 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 (8, in this case) are not shown.

For each property being compared, the top bar is S15500 stainless steel and the bottom bar is Z21721 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
87
Elongation at Break, % 6.8 to 16
40
Poisson's Ratio 0.28
0.25
Shear Modulus, GPa 75
35
Tensile Strength: Ultimate (UTS), MPa 890 to 1490
150
Tensile Strength: Yield (Proof), MPa 590 to 1310
120

Thermal Properties

Latent Heat of Fusion, J/g 280
110
Maximum Temperature: Mechanical, °C 820
90
Melting Completion (Liquidus), °C 1430
410
Melting Onset (Solidus), °C 1380
390
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 17
110
Thermal Expansion, µm/m-K 11
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 13
11
Density, g/cm3 7.8
6.6
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 39
53
Embodied Water, L/kg 130
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 120
57
Resilience: Unit (Modulus of Resilience), kJ/m3 890 to 4460
88
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 32 to 53
6.4
Strength to Weight: Bending, points 26 to 37
9.6
Thermal Diffusivity, mm2/s 4.6
44
Thermal Shock Resistance, points 30 to 50
4.8

Alloy Composition

Aluminum (Al), % 0
0 to 0.0020
Cadmium (Cd), % 0
0 to 0.070
Carbon (C), % 0 to 0.070
0
Chromium (Cr), % 14 to 15.5
0
Copper (Cu), % 2.5 to 4.5
0 to 0.0050
Iron (Fe), % 71.9 to 79.9
0 to 0.010
Lead (Pb), % 0
0 to 1.0
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 3.5 to 5.5
0
Niobium (Nb), % 0.15 to 0.45
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