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AWS E312 vs. ISO-WD43150 Magnesium

AWS E312 belongs to the iron alloys classification, while ISO-WD43150 magnesium belongs to the magnesium alloys. There are 20 material properties with values for both materials. Properties with values for just one material (11, 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 E312 and the bottom bar is ISO-WD43150 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
45
Elongation at Break, % 25
2.8
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
18
Tensile Strength: Ultimate (UTS), MPa 740
250

Thermal Properties

Latent Heat of Fusion, J/g 310
350
Melting Completion (Liquidus), °C 1410
610
Melting Onset (Solidus), °C 1360
590
Specific Heat Capacity, J/kg-K 480
990
Thermal Expansion, µm/m-K 15
27

Otherwise Unclassified Properties

Base Metal Price, % relative 20
12
Density, g/cm3 7.7
1.7
Embodied Carbon, kg CO2/kg material 3.6
24
Embodied Energy, MJ/kg 52
160
Embodied Water, L/kg 200
970

Common Calculations

Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 25
71
Strength to Weight: Axial, points 27
41
Strength to Weight: Bending, points 24
52
Thermal Shock Resistance, points 18
14

Alloy Composition

Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 28 to 32
0
Copper (Cu), % 0 to 0.75
0 to 0.050
Iron (Fe), % 52.3 to 63.5
0
Magnesium (Mg), % 0
97.5 to 98.8
Manganese (Mn), % 0.5 to 2.5
1.2 to 2.0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 8.0 to 10.5
0 to 0.010
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Residuals, % 0
0 to 0.3