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AM100A Magnesium vs. 50Cr-50Ni Alloy

AM100A magnesium belongs to the magnesium alloys classification, while 50Cr-50Ni alloy belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (10, 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 AM100A magnesium and the bottom bar is 50Cr-50Ni alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
210
Elongation at Break, % 1.0 to 6.8
5.7
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 18
84
Tensile Strength: Ultimate (UTS), MPa 160 to 270
620
Tensile Strength: Yield (Proof), MPa 78 to 140
390

Thermal Properties

Latent Heat of Fusion, J/g 350
350
Specific Heat Capacity, J/kg-K 990
490
Thermal Expansion, µm/m-K 25
15

Otherwise Unclassified Properties

Base Metal Price, % relative 12
50
Density, g/cm3 1.7
8.0
Embodied Carbon, kg CO2/kg material 22
7.9
Embodied Energy, MJ/kg 160
110
Embodied Water, L/kg 1000
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.3 to 15
31
Resilience: Unit (Modulus of Resilience), kJ/m3 66 to 210
350
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 70
25
Strength to Weight: Axial, points 25 to 44
21
Strength to Weight: Bending, points 38 to 54
20
Thermal Shock Resistance, points 9.7 to 17
14

Alloy Composition

Aluminum (Al), % 9.3 to 10.7
0 to 0.25
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
48 to 52
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0
0 to 1.0
Magnesium (Mg), % 87.9 to 90.6
0
Manganese (Mn), % 0.1 to 0.35
0 to 0.3
Nickel (Ni), % 0 to 0.010
44.5 to 52
Nitrogen (N), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0
0 to 0.5
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.3
0