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EN-MC32110 Magnesium vs. AWS ERNiCu-7

EN-MC32110 magnesium belongs to the magnesium alloys classification, while AWS ERNiCu-7 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-MC32110 magnesium and the bottom bar is AWS ERNiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 49
160
Elongation at Break, % 2.2
34
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 19
61
Tensile Strength: Ultimate (UTS), MPa 220
550

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Melting Completion (Liquidus), °C 600
1280
Melting Onset (Solidus), °C 500
1240
Specific Heat Capacity, J/kg-K 950
440
Thermal Conductivity, W/m-K 120
20
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
3.2
Electrical Conductivity: Equal Weight (Specific), % IACS 140
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
50
Density, g/cm3 2.1
8.7
Embodied Carbon, kg CO2/kg material 22
8.5
Embodied Energy, MJ/kg 150
120
Embodied Water, L/kg 920
250

Common Calculations

Stiffness to Weight: Axial, points 13
10
Stiffness to Weight: Bending, points 58
21
Strength to Weight: Axial, points 29
18
Strength to Weight: Bending, points 38
17
Thermal Diffusivity, mm2/s 58
5.3
Thermal Shock Resistance, points 12
19

Alloy Composition


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Aluminum (Al), % 0 to 0.2
0 to 1.3
Carbon (C), % 0
0 to 0.15
Copper (Cu), % 2.4 to 3.0
18.3 to 36.5
Iron (Fe), % 0 to 0.050
0 to 2.5
Magnesium (Mg), % 89.3 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0 to 4.0
Nickel (Ni), % 0 to 0.010
62 to 69
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.2
0 to 1.3
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
1.5 to 3.0
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.010
0 to 0.5