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Type 1 Niobium vs. 390.0 Aluminum

Type 1 niobium belongs to the otherwise unclassified metals classification, while 390.0 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 390.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 79
120
Elastic (Young's, Tensile) Modulus, GPa 110
75
Elongation at Break, % 29
1.0
Poisson's Ratio 0.4
0.33
Shear Modulus, GPa 38
28
Tensile Strength: Ultimate (UTS), MPa 140
280 to 300
Tensile Strength: Yield (Proof), MPa 82
240 to 270

Thermal Properties

Latent Heat of Fusion, J/g 320
640
Specific Heat Capacity, J/kg-K 270
880
Thermal Conductivity, W/m-K 52
130
Thermal Expansion, µm/m-K 7.3
18

Otherwise Unclassified Properties

Density, g/cm3 8.6
2.7
Embodied Water, L/kg 160
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35
2.7 to 2.9
Resilience: Unit (Modulus of Resilience), kJ/m3 32
380 to 470
Stiffness to Weight: Axial, points 6.8
15
Stiffness to Weight: Bending, points 18
52
Strength to Weight: Axial, points 4.6
28 to 30
Strength to Weight: Bending, points 7.1
35 to 36
Thermal Diffusivity, mm2/s 23
56
Thermal Shock Resistance, points 13
14 to 15

Alloy Composition

Aluminum (Al), % 0
74.5 to 79.6
Carbon (C), % 0 to 0.010
0
Copper (Cu), % 0
4.0 to 5.0
Hafnium (Hf), % 0 to 0.020
0
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.0050
0 to 1.3
Magnesium (Mg), % 0
0.45 to 0.65
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
16 to 18
Tantalum (Ta), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.020
0 to 0.2
Tungsten (W), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.1
Zirconium (Zr), % 0 to 0.020
0
Residuals, % 0
0 to 0.2