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354.0 Aluminum vs. Nuclear Grade Hafnium

354.0 aluminum belongs to the aluminum alloys classification, while nuclear grade hafnium belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (12, 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 354.0 aluminum and the bottom bar is nuclear grade hafnium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
78
Elongation at Break, % 2.4 to 3.0
25
Poisson's Ratio 0.33
0.26
Shear Modulus, GPa 27
31
Tensile Strength: Ultimate (UTS), MPa 360 to 380
350
Tensile Strength: Yield (Proof), MPa 280 to 310
170

Thermal Properties

Latent Heat of Fusion, J/g 530
130
Specific Heat Capacity, J/kg-K 900
140
Thermal Expansion, µm/m-K 21
5.9

Otherwise Unclassified Properties

Density, g/cm3 2.7
13

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.6 to 9.8
73
Resilience: Unit (Modulus of Resilience), kJ/m3 540 to 670
180
Stiffness to Weight: Axial, points 15
3.3
Stiffness to Weight: Bending, points 52
11
Strength to Weight: Axial, points 37 to 39
7.4
Strength to Weight: Bending, points 42 to 44
8.4
Thermal Shock Resistance, points 17 to 18
55

Alloy Composition


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Aluminum (Al), % 87.3 to 89.4
0
Copper (Cu), % 1.6 to 2.0
0
Hafnium (Hf), % 0
99.8 to 100
Iron (Fe), % 0 to 0.2
0
Magnesium (Mg), % 0.4 to 0.6
0
Manganese (Mn), % 0 to 0.1
0
Silicon (Si), % 8.6 to 9.4
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0 to 0.23