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EN AC-46500 Aluminum vs. Type 4 Niobium

EN AC-46500 aluminum belongs to the aluminum alloys classification, while Type 4 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-46500 aluminum and the bottom bar is Type 4 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 91
120
Elastic (Young's, Tensile) Modulus, GPa 74
110
Elongation at Break, % 1.0
23
Poisson's Ratio 0.33
0.4
Shear Modulus, GPa 28
38
Tensile Strength: Ultimate (UTS), MPa 270
220
Tensile Strength: Yield (Proof), MPa 160
140

Thermal Properties

Latent Heat of Fusion, J/g 520
310
Specific Heat Capacity, J/kg-K 880
270
Thermal Conductivity, W/m-K 100
42
Thermal Expansion, µm/m-K 21
7.3

Otherwise Unclassified Properties

Density, g/cm3 2.9
8.6
Embodied Water, L/kg 1030
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
44
Resilience: Unit (Modulus of Resilience), kJ/m3 170
93
Stiffness to Weight: Axial, points 14
6.8
Stiffness to Weight: Bending, points 49
18
Strength to Weight: Axial, points 26
7.2
Strength to Weight: Bending, points 32
9.5
Thermal Diffusivity, mm2/s 41
18
Thermal Shock Resistance, points 12
21

Alloy Composition

Aluminum (Al), % 77.9 to 90
0
Carbon (C), % 0
0 to 0.010
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 2.0 to 4.0
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0 to 1.3
0 to 0.010
Lead (Pb), % 0 to 0.35
0
Magnesium (Mg), % 0.050 to 0.55
0
Manganese (Mn), % 0 to 0.55
0
Molybdenum (Mo), % 0
0 to 0.050
Nickel (Ni), % 0 to 0.55
0 to 0.0050
Niobium (Nb), % 0
98.1 to 99.2
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.025
Silicon (Si), % 8.0 to 11
0 to 0.0050
Tantalum (Ta), % 0
0 to 0.5
Tin (Sn), % 0 to 0.15
0
Titanium (Ti), % 0 to 0.25
0 to 0.020
Tungsten (W), % 0
0 to 0.050
Zinc (Zn), % 0 to 3.0
0
Zirconium (Zr), % 0
0.8 to 1.2
Residuals, % 0 to 0.25
0