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EN-MC65120 Magnesium vs. AWS ERNi-1

EN-MC65120 magnesium belongs to the magnesium alloys classification, while AWS ERNi-1 belongs to the nickel alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, 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-MC65120 magnesium and the bottom bar is AWS ERNi-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
180
Elongation at Break, % 3.1
22
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
69
Tensile Strength: Ultimate (UTS), MPa 160
470

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Melting Completion (Liquidus), °C 590
1360
Melting Onset (Solidus), °C 520
1310
Specific Heat Capacity, J/kg-K 970
450
Thermal Conductivity, W/m-K 100
73
Thermal Expansion, µm/m-K 26
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
19
Electrical Conductivity: Equal Weight (Specific), % IACS 120
19

Otherwise Unclassified Properties

Base Metal Price, % relative 25
60
Density, g/cm3 1.9
8.7
Embodied Carbon, kg CO2/kg material 25
11
Embodied Energy, MJ/kg 190
150
Embodied Water, L/kg 930
230

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 62
22
Strength to Weight: Axial, points 23
15
Strength to Weight: Bending, points 34
15
Thermal Diffusivity, mm2/s 56
19
Thermal Shock Resistance, points 9.8
17

Alloy Composition


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Aluminum (Al), % 0
0 to 1.5
Carbon (C), % 0
0 to 0.15
Copper (Cu), % 0 to 0.030
0 to 0.25
Iron (Fe), % 0 to 0.010
0 to 1.0
Magnesium (Mg), % 91.8 to 95.1
0
Manganese (Mn), % 0 to 0.15
0 to 1.0
Nickel (Ni), % 0 to 0.0050
93 to 98
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.010
0 to 0.75
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
2.0 to 3.5
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.5