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50Cr-50Ni-Cb Alloy vs. 2018 Aluminum

50Cr-50Ni-Cb alloy belongs to the otherwise unclassified metals classification, while 2018 aluminum belongs to the aluminum alloys. 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 50Cr-50Ni-Cb alloy and the bottom bar is 2018 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
73
Elongation at Break, % 5.6
9.6
Poisson's Ratio 0.26
0.33
Shear Modulus, GPa 84
27
Tensile Strength: Ultimate (UTS), MPa 620
420
Tensile Strength: Yield (Proof), MPa 390
310

Thermal Properties

Latent Heat of Fusion, J/g 350
390
Specific Heat Capacity, J/kg-K 480
870
Thermal Expansion, µm/m-K 15
22

Otherwise Unclassified Properties

Base Metal Price, % relative 60
11
Density, g/cm3 8.0
3.1
Embodied Carbon, kg CO2/kg material 9.2
8.1
Embodied Energy, MJ/kg 130
150
Embodied Water, L/kg 350
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30
37
Resilience: Unit (Modulus of Resilience), kJ/m3 370
670
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
45
Strength to Weight: Axial, points 21
38
Strength to Weight: Bending, points 20
41
Thermal Shock Resistance, points 14
19

Alloy Composition


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Aluminum (Al), % 0 to 0.25
89.7 to 94.4
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 47 to 52
0 to 0.1
Copper (Cu), % 0
3.5 to 4.5
Iron (Fe), % 0 to 1.0
0 to 1.0
Magnesium (Mg), % 0
0.45 to 0.9
Manganese (Mn), % 0 to 0.3
0 to 0.2
Nickel (Ni), % 43.3 to 51.6
1.7 to 2.3
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 0.9
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0 to 0.5
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15