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50Cr-50Ni-Cb Alloy vs. AZ91A Magnesium

50Cr-50Ni-Cb alloy belongs to the otherwise unclassified metals classification, while AZ91A magnesium belongs to the magnesium alloys. There are 21 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 50Cr-50Ni-Cb alloy and the bottom bar is AZ91A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
46
Elongation at Break, % 5.6
5.0
Poisson's Ratio 0.26
0.29
Shear Modulus, GPa 84
18
Tensile Strength: Ultimate (UTS), MPa 620
240
Tensile Strength: Yield (Proof), MPa 390
160

Thermal Properties

Latent Heat of Fusion, J/g 350
360
Specific Heat Capacity, J/kg-K 480
990
Thermal Expansion, µm/m-K 15
26

Otherwise Unclassified Properties

Base Metal Price, % relative 60
12
Density, g/cm3 8.0
1.7
Embodied Carbon, kg CO2/kg material 9.2
22
Embodied Energy, MJ/kg 130
160
Embodied Water, L/kg 350
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30
11
Resilience: Unit (Modulus of Resilience), kJ/m3 370
280
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 25
69
Strength to Weight: Axial, points 21
38
Strength to Weight: Bending, points 20
49
Thermal Shock Resistance, points 14
14

Alloy Composition

Aluminum (Al), % 0 to 0.25
8.3 to 9.7
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 47 to 52
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 0 to 1.0
0
Magnesium (Mg), % 0
88.2 to 91.2
Manganese (Mn), % 0 to 0.3
0.13 to 0.5
Nickel (Ni), % 43.3 to 51.6
0 to 0.030
Niobium (Nb), % 1.4 to 1.7
0
Nitrogen (N), % 0 to 0.16
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0 to 0.5
0
Zinc (Zn), % 0
0.35 to 1.0