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EN-MC35110 Magnesium vs. AWS E120C-K4

EN-MC35110 magnesium belongs to the magnesium alloys classification, while AWS E120C-K4 belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, 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-MC35110 magnesium and the bottom bar is AWS E120C-K4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 3.1
17
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
73
Tensile Strength: Ultimate (UTS), MPa 230
950
Tensile Strength: Yield (Proof), MPa 150
840

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 520
1410
Specific Heat Capacity, J/kg-K 970
470
Thermal Conductivity, W/m-K 110
41
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 130
9.2

Otherwise Unclassified Properties

Base Metal Price, % relative 18
3.5
Density, g/cm3 1.9
7.8
Embodied Carbon, kg CO2/kg material 24
1.7
Embodied Energy, MJ/kg 170
23
Embodied Water, L/kg 940
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
160
Resilience: Unit (Modulus of Resilience), kJ/m3 260
1880
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 63
24
Strength to Weight: Axial, points 34
34
Strength to Weight: Bending, points 44
27
Thermal Diffusivity, mm2/s 61
11
Thermal Shock Resistance, points 14
28

Alloy Composition


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Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
0.15 to 0.65
Copper (Cu), % 0 to 0.030
0 to 0.35
Iron (Fe), % 0 to 0.010
92.1 to 98.4
Magnesium (Mg), % 92 to 95.4
0
Manganese (Mn), % 0 to 0.15
0.75 to 2.3
Molybdenum (Mo), % 0
0.25 to 0.65
Nickel (Ni), % 0 to 0.0050
0.5 to 2.5
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.010
0 to 0.8
Sulfur (S), % 0
0 to 0.025
Unspecified Rare Earths, % 0.75 to 1.8
0
Vanadium (V), % 0
0 to 0.030
Zinc (Zn), % 3.5 to 5.0
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.5