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EN AC-47000 Aluminum vs. Type 3 Niobium

EN AC-47000 aluminum belongs to the aluminum alloys classification, while Type 3 niobium belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (9, 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 EN AC-47000 aluminum and the bottom bar is Type 3 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
110
Elastic (Young's, Tensile) Modulus, GPa 73
100
Elongation at Break, % 1.7
23
Poisson's Ratio 0.33
0.4
Shear Modulus, GPa 27
38
Tensile Strength: Ultimate (UTS), MPa 180
220
Tensile Strength: Yield (Proof), MPa 97
140

Thermal Properties

Latent Heat of Fusion, J/g 570
310
Specific Heat Capacity, J/kg-K 900
270
Thermal Conductivity, W/m-K 130
42
Thermal Expansion, µm/m-K 21
7.3

Otherwise Unclassified Properties

Density, g/cm3 2.6
8.6
Embodied Water, L/kg 1040
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.5
44
Resilience: Unit (Modulus of Resilience), kJ/m3 65
93
Stiffness to Weight: Axial, points 16
6.8
Stiffness to Weight: Bending, points 54
18
Strength to Weight: Axial, points 19
7.2
Strength to Weight: Bending, points 27
9.5
Thermal Diffusivity, mm2/s 55
18
Thermal Shock Resistance, points 8.3
21

Alloy Composition

Aluminum (Al), % 82.1 to 89.5
0
Carbon (C), % 0
0 to 0.010
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 1.0
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0 to 0.8
0 to 0.0050
Lead (Pb), % 0 to 0.2
0
Magnesium (Mg), % 0 to 0.35
0
Manganese (Mn), % 0.050 to 0.55
0
Molybdenum (Mo), % 0
0 to 0.010
Nickel (Ni), % 0 to 0.3
0 to 0.0050
Niobium (Nb), % 0
98.6 to 99.2
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.015
Silicon (Si), % 10.5 to 13.5
0 to 0.0050
Tantalum (Ta), % 0
0 to 0.1
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.2
0 to 0.020
Tungsten (W), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.55
0
Zirconium (Zr), % 0
0.8 to 1.2
Residuals, % 0 to 0.25
0