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EN-MC32110 Magnesium vs. AWS E90C-B9

EN-MC32110 magnesium belongs to the magnesium alloys classification, while AWS E90C-B9 belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, 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 EN-MC32110 magnesium and the bottom bar is AWS E90C-B9.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 49
190
Elongation at Break, % 2.2
18
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 19
75
Tensile Strength: Ultimate (UTS), MPa 220
710
Tensile Strength: Yield (Proof), MPa 140
460

Thermal Properties

Latent Heat of Fusion, J/g 330
270
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 500
1410
Specific Heat Capacity, J/kg-K 950
470
Thermal Conductivity, W/m-K 120
25
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 13
7.0
Density, g/cm3 2.1
7.8
Embodied Carbon, kg CO2/kg material 22
2.6
Embodied Energy, MJ/kg 150
37
Embodied Water, L/kg 920
91

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.3
110
Resilience: Unit (Modulus of Resilience), kJ/m3 210
550
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 58
25
Strength to Weight: Axial, points 29
25
Strength to Weight: Bending, points 38
23
Thermal Diffusivity, mm2/s 58
6.9
Thermal Shock Resistance, points 12
20

Alloy Composition


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Aluminum (Al), % 0 to 0.2
0 to 0.040
Carbon (C), % 0
0.080 to 0.13
Chromium (Cr), % 0
8.0 to 10.5
Copper (Cu), % 2.4 to 3.0
0 to 0.2
Iron (Fe), % 0 to 0.050
84.4 to 90.9
Magnesium (Mg), % 89.3 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0 to 1.2
Molybdenum (Mo), % 0
0.85 to 1.2
Nickel (Ni), % 0 to 0.010
0 to 0.8
Niobium (Nb), % 0
0.020 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.2
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Vanadium (V), % 0
0.15 to 0.3
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.010
0 to 0.5