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50Cr-50Ni-Cb Alloy vs. 8021 Aluminum

50Cr-50Ni-Cb alloy belongs to the otherwise unclassified metals classification, while 8021 aluminum belongs to the aluminum alloys. There are 21 material properties with values for both materials. Properties with values for just one material (8, 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 8021 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
70
Elongation at Break, % 5.6
2.3
Poisson's Ratio 0.26
0.33
Shear Modulus, GPa 84
26
Tensile Strength: Ultimate (UTS), MPa 620
160
Tensile Strength: Yield (Proof), MPa 390
130

Thermal Properties

Latent Heat of Fusion, J/g 350
400
Specific Heat Capacity, J/kg-K 480
900
Thermal Expansion, µm/m-K 15
23

Otherwise Unclassified Properties

Base Metal Price, % relative 60
9.0
Density, g/cm3 8.0
2.8
Embodied Carbon, kg CO2/kg material 9.2
8.1
Embodied Energy, MJ/kg 130
150
Embodied Water, L/kg 350
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30
3.4
Resilience: Unit (Modulus of Resilience), kJ/m3 370
130
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
49
Strength to Weight: Axial, points 21
16
Strength to Weight: Bending, points 20
23
Thermal Shock Resistance, points 14
7.0

Alloy Composition


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Aluminum (Al), % 0 to 0.25
98 to 98.8
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 47 to 52
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 0 to 1.0
1.2 to 1.7
Manganese (Mn), % 0 to 0.3
0
Nickel (Ni), % 43.3 to 51.6
0
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 0.15
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0 to 0.5
0
Residuals, % 0
0 to 0.15