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EN-MC21120 Magnesium vs. 60Cr-40Ni Alloy

EN-MC21120 magnesium belongs to the magnesium alloys classification, while 60Cr-40Ni alloy belongs to the otherwise unclassified metals. There are 19 material properties with values for both materials. Properties with values for just one material (12, 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-MC21120 magnesium and the bottom bar is 60Cr-40Ni alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
220
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 18
87
Tensile Strength: Ultimate (UTS), MPa 200 to 270
870
Tensile Strength: Yield (Proof), MPa 130 to 170
660

Thermal Properties

Latent Heat of Fusion, J/g 350
370
Specific Heat Capacity, J/kg-K 990
490
Thermal Expansion, µm/m-K 26
16

Otherwise Unclassified Properties

Base Metal Price, % relative 12
49
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 22
7.4
Embodied Energy, MJ/kg 160
110
Embodied Water, L/kg 990
380

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 320
1000
Stiffness to Weight: Axial, points 15
16
Stiffness to Weight: Bending, points 69
26
Strength to Weight: Axial, points 31 to 43
31
Strength to Weight: Bending, points 43 to 53
26
Thermal Shock Resistance, points 11 to 16
18

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0 to 0.25
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
58 to 62
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.0050
0 to 1.0
Magnesium (Mg), % 88.6 to 91.3
0
Manganese (Mn), % 0.1 to 0.5
0 to 0.3
Nickel (Ni), % 0 to 0.0020
34.5 to 42
Nitrogen (N), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0
0 to 0.5
Zinc (Zn), % 0.35 to 1.0
0
Residuals, % 0 to 0.010
0