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Z21721 Zinc vs. SAE-AISI A7 Steel

Z21721 zinc belongs to the zinc alloys classification, while SAE-AISI A7 steel belongs to the iron alloys. There are 21 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 Z21721 zinc and the bottom bar is SAE-AISI A7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
190
Poisson's Ratio 0.25
0.29
Shear Modulus, GPa 35
72
Tensile Strength: Ultimate (UTS), MPa 150
800 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 110
260
Melting Completion (Liquidus), °C 410
1470
Melting Onset (Solidus), °C 390
1430
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 110
37
Thermal Expansion, µm/m-K 26
12

Otherwise Unclassified Properties

Base Metal Price, % relative 11
10
Density, g/cm3 6.6
7.7
Embodied Carbon, kg CO2/kg material 2.8
13
Embodied Energy, MJ/kg 53
200
Embodied Water, L/kg 340
100

Common Calculations

Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 6.4
29 to 77
Strength to Weight: Bending, points 9.6
25 to 48
Thermal Diffusivity, mm2/s 44
10
Thermal Shock Resistance, points 4.8
27 to 72

Alloy Composition

Aluminum (Al), % 0 to 0.0020
0
Cadmium (Cd), % 0 to 0.070
0
Carbon (C), % 0
2.0 to 2.9
Chromium (Cr), % 0
5.0 to 5.8
Copper (Cu), % 0 to 0.0050
0 to 0.25
Iron (Fe), % 0 to 0.010
81.4 to 87.7
Lead (Pb), % 0 to 1.0
0
Manganese (Mn), % 0
0 to 0.8
Molybdenum (Mo), % 0
0.9 to 1.4
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.020
0
Tungsten (W), % 0
0.5 to 1.5
Vanadium (V), % 0
3.9 to 5.2
Zinc (Zn), % 98.9 to 100
0