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5050 Aluminum vs. Type 1 Niobium

5050 aluminum belongs to the aluminum alloys classification, while Type 1 niobium belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (11, 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 5050 aluminum and the bottom bar is Type 1 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 36 to 68
79
Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 1.7 to 22
29
Poisson's Ratio 0.33
0.4
Shear Modulus, GPa 26
38
Tensile Strength: Ultimate (UTS), MPa 140 to 250
140
Tensile Strength: Yield (Proof), MPa 50 to 210
82

Thermal Properties

Latent Heat of Fusion, J/g 400
320
Specific Heat Capacity, J/kg-K 900
270
Thermal Conductivity, W/m-K 190
52
Thermal Expansion, µm/m-K 24
7.3

Otherwise Unclassified Properties

Density, g/cm3 2.7
8.6
Embodied Water, L/kg 1190
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.1 to 24
35
Resilience: Unit (Modulus of Resilience), kJ/m3 18 to 330
32
Stiffness to Weight: Axial, points 14
6.8
Stiffness to Weight: Bending, points 50
18
Strength to Weight: Axial, points 15 to 26
4.6
Strength to Weight: Bending, points 22 to 33
7.1
Thermal Diffusivity, mm2/s 79
23
Thermal Shock Resistance, points 6.3 to 11
13

Alloy Composition

Aluminum (Al), % 96.3 to 98.9
0
Carbon (C), % 0
0 to 0.010
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.2
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0 to 0.7
0 to 0.0050
Magnesium (Mg), % 1.1 to 1.8
0
Manganese (Mn), % 0 to 0.1
0
Molybdenum (Mo), % 0
0 to 0.010
Nickel (Ni), % 0
0 to 0.0050
Niobium (Nb), % 0
99.7 to 100
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.015
Silicon (Si), % 0 to 0.4
0 to 0.0050
Tantalum (Ta), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.020
Tungsten (W), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0
0 to 0.020
Residuals, % 0 to 0.15
0