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SAE-AISI A2 Steel vs. Z21721 Zinc

SAE-AISI A2 steel belongs to the iron alloys classification, while Z21721 zinc belongs to the zinc alloys. There are 23 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 SAE-AISI A2 steel and the bottom bar is Z21721 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
87
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 74
35
Tensile Strength: Ultimate (UTS), MPa 710 to 2040
150

Thermal Properties

Latent Heat of Fusion, J/g 260
110
Melting Completion (Liquidus), °C 1450
410
Melting Onset (Solidus), °C 1410
390
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 38
110
Thermal Expansion, µm/m-K 11
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
27
Electrical Conductivity: Equal Weight (Specific), % IACS 9.5
37

Otherwise Unclassified Properties

Base Metal Price, % relative 5.5
11
Density, g/cm3 7.8
6.6
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 38
53
Embodied Water, L/kg 73
340

Common Calculations

Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 25 to 73
6.4
Strength to Weight: Bending, points 23 to 46
9.6
Thermal Diffusivity, mm2/s 10
44
Thermal Shock Resistance, points 25 to 71
4.8

Alloy Composition

Aluminum (Al), % 0
0 to 0.0020
Cadmium (Cd), % 0
0 to 0.070
Carbon (C), % 1.0 to 1.1
0
Chromium (Cr), % 4.8 to 5.5
0
Copper (Cu), % 0 to 0.25
0 to 0.0050
Iron (Fe), % 89.4 to 93.3
0 to 0.010
Lead (Pb), % 0
0 to 1.0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0.9 to 1.4
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.020
Vanadium (V), % 0.15 to 0.5
0
Zinc (Zn), % 0
98.9 to 100