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Type 1 Niobium vs. EN AC-42100 Aluminum

Type 1 niobium belongs to the otherwise unclassified metals classification, while EN AC-42100 aluminum belongs to the aluminum alloys. 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 Type 1 niobium and the bottom bar is EN AC-42100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 79
91
Elastic (Young's, Tensile) Modulus, GPa 110
70
Elongation at Break, % 29
3.4 to 9.0
Poisson's Ratio 0.4
0.33
Shear Modulus, GPa 38
26
Tensile Strength: Ultimate (UTS), MPa 140
280 to 290
Tensile Strength: Yield (Proof), MPa 82
210 to 230

Thermal Properties

Latent Heat of Fusion, J/g 320
500
Specific Heat Capacity, J/kg-K 270
910
Thermal Conductivity, W/m-K 52
150
Thermal Expansion, µm/m-K 7.3
22

Otherwise Unclassified Properties

Density, g/cm3 8.6
2.6
Embodied Water, L/kg 160
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35
9.1 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 32
300 to 370
Stiffness to Weight: Axial, points 6.8
15
Stiffness to Weight: Bending, points 18
53
Strength to Weight: Axial, points 4.6
30 to 31
Strength to Weight: Bending, points 7.1
37 to 38
Thermal Diffusivity, mm2/s 23
66
Thermal Shock Resistance, points 13
13

Alloy Composition

Aluminum (Al), % 0
91.3 to 93.3
Carbon (C), % 0 to 0.010
0
Copper (Cu), % 0
0 to 0.050
Hafnium (Hf), % 0 to 0.020
0
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.0050
0 to 0.19
Magnesium (Mg), % 0
0.25 to 0.45
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 0 to 0.010
0
Nickel (Ni), % 0 to 0.0050
0
Niobium (Nb), % 99.7 to 100
0
Nitrogen (N), % 0 to 0.010
0
Oxygen (O), % 0 to 0.015
0
Silicon (Si), % 0 to 0.0050
6.5 to 7.5
Tantalum (Ta), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.020
0 to 0.25
Tungsten (W), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.070
Zirconium (Zr), % 0 to 0.020
0
Residuals, % 0
0 to 0.1