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AWS E219 vs. AZ92A Magnesium

AWS E219 belongs to the iron alloys classification, while AZ92A magnesium belongs to the magnesium alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, 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 AWS E219 and the bottom bar is AZ92A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
47
Elongation at Break, % 17
2.1 to 6.8
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
18
Tensile Strength: Ultimate (UTS), MPa 690
170 to 270

Thermal Properties

Latent Heat of Fusion, J/g 290
350
Melting Completion (Liquidus), °C 1400
590
Melting Onset (Solidus), °C 1360
440
Specific Heat Capacity, J/kg-K 480
980
Thermal Conductivity, W/m-K 14
44 to 58
Thermal Expansion, µm/m-K 15
26

Otherwise Unclassified Properties

Base Metal Price, % relative 15
12
Density, g/cm3 7.7
1.8
Embodied Carbon, kg CO2/kg material 3.1
22
Embodied Energy, MJ/kg 44
160
Embodied Water, L/kg 160
980

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
67
Strength to Weight: Axial, points 25
26 to 41
Strength to Weight: Bending, points 23
38 to 51
Thermal Diffusivity, mm2/s 3.8
25 to 33
Thermal Shock Resistance, points 17
10 to 16

Alloy Composition

Aluminum (Al), % 0
8.3 to 9.7
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 19 to 21.5
0
Copper (Cu), % 0 to 0.75
0 to 0.25
Iron (Fe), % 58.6 to 67.4
0
Magnesium (Mg), % 0
86.7 to 90
Manganese (Mn), % 8.0 to 10
0.1 to 0.35
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 5.5 to 7.0
0 to 0.010
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
1.6 to 2.4
Residuals, % 0
0 to 0.3