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AZ80A Magnesium vs. AWS E316L

AZ80A magnesium belongs to the magnesium alloys classification, while AWS E316L belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is AZ80A magnesium and the bottom bar is AWS E316L.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
200
Elongation at Break, % 3.9 to 8.5
34
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
78
Tensile Strength: Ultimate (UTS), MPa 320 to 340
550

Thermal Properties

Latent Heat of Fusion, J/g 350
290
Melting Completion (Liquidus), °C 600
1440
Melting Onset (Solidus), °C 490
1390
Specific Heat Capacity, J/kg-K 990
470
Thermal Conductivity, W/m-K 77
15
Thermal Expansion, µm/m-K 26
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 59
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
20
Density, g/cm3 1.7
7.9
Embodied Carbon, kg CO2/kg material 23
4.0
Embodied Energy, MJ/kg 160
55
Embodied Water, L/kg 990
160

Common Calculations

Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 69
25
Strength to Weight: Axial, points 51 to 55
19
Strength to Weight: Bending, points 60 to 63
19
Thermal Diffusivity, mm2/s 45
4.0
Thermal Shock Resistance, points 19 to 20
14

Alloy Composition

Aluminum (Al), % 7.8 to 9.2
0
Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0
17 to 20
Copper (Cu), % 0 to 0.050
0 to 0.75
Iron (Fe), % 0 to 0.0050
58.6 to 69.5
Magnesium (Mg), % 89 to 91.9
0
Manganese (Mn), % 0.12 to 0.5
0.5 to 2.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0 to 0.0050
11 to 14
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0.2 to 0.8
0
Residuals, % 0 to 0.3
0