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AISI 309H Stainless Steel vs. Z21721 Zinc

AISI 309H 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 AISI 309H 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, % 40
40
Poisson's Ratio 0.27
0.25
Shear Modulus, GPa 78
35
Tensile Strength: Ultimate (UTS), MPa 580
150
Tensile Strength: Yield (Proof), MPa 230
120

Thermal Properties

Latent Heat of Fusion, J/g 290
110
Maximum Temperature: Mechanical, °C 1080
90
Melting Completion (Liquidus), °C 1420
410
Melting Onset (Solidus), °C 1370
390
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 15
110
Thermal Expansion, µm/m-K 16
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 19
11
Density, g/cm3 7.8
6.6
Embodied Carbon, kg CO2/kg material 3.6
2.8
Embodied Energy, MJ/kg 51
53
Embodied Water, L/kg 170
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
57
Resilience: Unit (Modulus of Resilience), kJ/m3 130
88
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 21
6.4
Strength to Weight: Bending, points 20
9.6
Thermal Diffusivity, mm2/s 4.0
44
Thermal Shock Resistance, points 13
4.8

Alloy Composition

Aluminum (Al), % 0
0 to 0.0020
Cadmium (Cd), % 0
0 to 0.070
Carbon (C), % 0.040 to 0.1
0
Chromium (Cr), % 22 to 24
0
Copper (Cu), % 0
0 to 0.0050
Iron (Fe), % 58.1 to 66
0 to 0.010
Lead (Pb), % 0
0 to 1.0
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 12 to 15
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.020
Zinc (Zn), % 0
98.9 to 100