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AWS ERNiCu-7 vs. EN-MC65120 Magnesium

AWS ERNiCu-7 belongs to the nickel alloys classification, while EN-MC65120 magnesium belongs to the magnesium 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 AWS ERNiCu-7 and the bottom bar is EN-MC65120 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
45
Elongation at Break, % 34
3.1
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 61
17
Tensile Strength: Ultimate (UTS), MPa 550
160

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Melting Completion (Liquidus), °C 1280
590
Melting Onset (Solidus), °C 1240
520
Specific Heat Capacity, J/kg-K 440
970
Thermal Conductivity, W/m-K 20
100
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.2
25
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
120

Otherwise Unclassified Properties

Base Metal Price, % relative 50
25
Density, g/cm3 8.7
1.9
Embodied Carbon, kg CO2/kg material 8.5
25
Embodied Energy, MJ/kg 120
190
Embodied Water, L/kg 250
930

Common Calculations

Stiffness to Weight: Axial, points 10
13
Stiffness to Weight: Bending, points 21
62
Strength to Weight: Axial, points 18
23
Strength to Weight: Bending, points 17
34
Thermal Diffusivity, mm2/s 5.3
56
Thermal Shock Resistance, points 19
9.8

Alloy Composition

Aluminum (Al), % 0 to 1.3
0
Carbon (C), % 0 to 0.15
0
Copper (Cu), % 18.3 to 36.5
0 to 0.030
Iron (Fe), % 0 to 2.5
0 to 0.010
Magnesium (Mg), % 0
91.8 to 95.1
Manganese (Mn), % 0 to 4.0
0 to 0.15
Nickel (Ni), % 62 to 69
0 to 0.0050
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.3
0 to 0.010
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 1.5 to 3.0
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Zinc (Zn), % 0
2.0 to 3.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010