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AWS E2594 vs. AZ92A Magnesium

AWS E2594 belongs to the iron alloys classification, while AZ92A magnesium belongs to the magnesium alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, 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 E2594 and the bottom bar is AZ92A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
47
Elongation at Break, % 17
2.1 to 6.8
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
18
Tensile Strength: Ultimate (UTS), MPa 850
170 to 270

Thermal Properties

Latent Heat of Fusion, J/g 300
350
Melting Completion (Liquidus), °C 1440
590
Melting Onset (Solidus), °C 1400
440
Specific Heat Capacity, J/kg-K 480
980
Thermal Conductivity, W/m-K 16
44 to 58
Thermal Expansion, µm/m-K 14
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
11 to 12
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
53 to 62

Otherwise Unclassified Properties

Base Metal Price, % relative 22
12
Density, g/cm3 7.8
1.8
Embodied Carbon, kg CO2/kg material 4.3
22
Embodied Energy, MJ/kg 60
160
Embodied Water, L/kg 190
980

Common Calculations

Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
67
Strength to Weight: Axial, points 30
26 to 41
Strength to Weight: Bending, points 25
38 to 51
Thermal Diffusivity, mm2/s 4.3
25 to 33
Thermal Shock Resistance, points 21
10 to 16

Alloy Composition

Aluminum (Al), % 0
8.3 to 9.7
Carbon (C), % 0 to 0.040
0
Chromium (Cr), % 24 to 27
0
Copper (Cu), % 0 to 0.75
0 to 0.25
Iron (Fe), % 53.8 to 63.8
0
Magnesium (Mg), % 0
86.7 to 90
Manganese (Mn), % 0.5 to 2.0
0.1 to 0.35
Molybdenum (Mo), % 3.5 to 4.5
0
Nickel (Ni), % 8.0 to 10.5
0 to 0.010
Nitrogen (N), % 0.2 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