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AM50A Magnesium vs. 50Cr-50Ni-Cb Alloy

AM50A magnesium belongs to the magnesium alloys classification, while 50Cr-50Ni-Cb 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 AM50A magnesium and the bottom bar is 50Cr-50Ni-Cb alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
210
Elongation at Break, % 11
5.6
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 17
84
Tensile Strength: Ultimate (UTS), MPa 210
620
Tensile Strength: Yield (Proof), MPa 120
390

Thermal Properties

Latent Heat of Fusion, J/g 350
350
Specific Heat Capacity, J/kg-K 1000
480
Thermal Expansion, µm/m-K 26
15

Otherwise Unclassified Properties

Base Metal Price, % relative 12
60
Density, g/cm3 1.7
8.0
Embodied Carbon, kg CO2/kg material 23
9.2
Embodied Energy, MJ/kg 160
130
Embodied Water, L/kg 990
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
30
Resilience: Unit (Modulus of Resilience), kJ/m3 150
370
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 35
21
Strength to Weight: Bending, points 47
20
Thermal Shock Resistance, points 13
14

Alloy Composition

Aluminum (Al), % 4.4 to 5.4
0 to 0.25
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
47 to 52
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0040
0 to 1.0
Magnesium (Mg), % 93.7 to 95.3
0
Manganese (Mn), % 0.26 to 0.6
0 to 0.3
Nickel (Ni), % 0 to 0.0020
43.3 to 51.6
Niobium (Nb), % 0
1.4 to 1.7
Nitrogen (N), % 0
0 to 0.16
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.1
0 to 0.5
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0
0 to 0.5
Zinc (Zn), % 0 to 0.22
0