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A206.0 Aluminum vs. Type 4 Niobium

A206.0 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 (10, 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 A206.0 aluminum and the bottom bar is Type 4 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 110
120
Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 4.2 to 10
23
Poisson's Ratio 0.33
0.4
Shear Modulus, GPa 26
38
Tensile Strength: Ultimate (UTS), MPa 390 to 440
220
Tensile Strength: Yield (Proof), MPa 250 to 380
140

Thermal Properties

Latent Heat of Fusion, J/g 390
310
Specific Heat Capacity, J/kg-K 880
270
Thermal Conductivity, W/m-K 130
42
Thermal Expansion, µm/m-K 23
7.3

Otherwise Unclassified Properties

Density, g/cm3 3.0
8.6
Embodied Water, L/kg 1150
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 37
44
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 1000
93
Stiffness to Weight: Axial, points 13
6.8
Stiffness to Weight: Bending, points 46
18
Strength to Weight: Axial, points 36 to 41
7.2
Strength to Weight: Bending, points 39 to 43
9.5
Thermal Diffusivity, mm2/s 48
18
Thermal Shock Resistance, points 17 to 19
21

Alloy Composition

Aluminum (Al), % 93.9 to 95.7
0
Carbon (C), % 0
0 to 0.010
Copper (Cu), % 4.2 to 5.0
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0 to 0.1
0 to 0.010
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0 to 0.2
0
Molybdenum (Mo), % 0
0 to 0.050
Nickel (Ni), % 0 to 0.050
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), % 0 to 0.050
0 to 0.0050
Tantalum (Ta), % 0
0 to 0.5
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0.15 to 0.3
0 to 0.020
Tungsten (W), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.1
0
Zirconium (Zr), % 0
0.8 to 1.2
Residuals, % 0 to 0.15
0