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AWS E240 vs. Z21721 Zinc

AWS E240 belongs to the iron alloys classification, while Z21721 zinc belongs to the zinc alloys. There are 22 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 AWS E240 and the bottom bar is Z21721 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
87
Elongation at Break, % 17
40
Poisson's Ratio 0.28
0.25
Shear Modulus, GPa 77
35
Tensile Strength: Ultimate (UTS), MPa 770
150

Thermal Properties

Latent Heat of Fusion, J/g 290
110
Melting Completion (Liquidus), °C 1390
410
Melting Onset (Solidus), °C 1350
390
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 15
110
Thermal Expansion, µm/m-K 15
26

Otherwise Unclassified Properties

Base Metal Price, % relative 14
11
Density, g/cm3 7.7
6.6
Embodied Carbon, kg CO2/kg material 3.0
2.8
Embodied Energy, MJ/kg 42
53
Embodied Water, L/kg 160
340

Common Calculations

Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 28
6.4
Strength to Weight: Bending, points 24
9.6
Thermal Diffusivity, mm2/s 3.9
44
Thermal Shock Resistance, points 19
4.8

Alloy Composition

Aluminum (Al), % 0
0 to 0.0020
Cadmium (Cd), % 0
0 to 0.070
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0 to 0.75
0 to 0.0050
Iron (Fe), % 58.6 to 68.4
0 to 0.010
Lead (Pb), % 0
0 to 1.0
Manganese (Mn), % 10.5 to 13.5
0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 4.0 to 6.0
0
Nitrogen (N), % 0.1 to 0.3
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