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EN-MC65220 Magnesium vs. AWS E80C-Ni3

EN-MC65220 magnesium belongs to the magnesium alloys classification, while AWS E80C-Ni3 belongs to the iron alloys. There are 26 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-MC65220 magnesium and the bottom bar is AWS E80C-Ni3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
190
Elongation at Break, % 2.2
27
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
72
Tensile Strength: Ultimate (UTS), MPa 270
630
Tensile Strength: Yield (Proof), MPa 200
530

Thermal Properties

Latent Heat of Fusion, J/g 340
260
Melting Completion (Liquidus), °C 610
1450
Melting Onset (Solidus), °C 550
1410
Specific Heat Capacity, J/kg-K 980
470
Thermal Conductivity, W/m-K 110
51
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 80
3.9
Density, g/cm3 1.9
7.8
Embodied Carbon, kg CO2/kg material 27
1.7
Embodied Energy, MJ/kg 210
23

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
160
Resilience: Unit (Modulus of Resilience), kJ/m3 450
740
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 62
24
Strength to Weight: Axial, points 40
22
Strength to Weight: Bending, points 49
21
Thermal Diffusivity, mm2/s 61
14
Thermal Shock Resistance, points 17
19

Alloy Composition


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Carbon (C), % 0
0 to 0.12
Copper (Cu), % 0.050 to 0.1
0 to 0.35
Iron (Fe), % 0 to 0.010
92.8 to 97.3
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
0 to 1.5
Nickel (Ni), % 0 to 0.0050
2.8 to 3.8
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.010
0 to 0.9
Silver (Ag), % 1.3 to 1.7
0
Sulfur (S), % 0
0 to 0.030
Unspecified Rare Earths, % 1.5 to 3.0
0
Vanadium (V), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.5