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EN AC-21100 Aluminum vs. Reactor Grade Zirconium

EN AC-21100 aluminum belongs to the aluminum alloys classification, while reactor grade zirconium belongs to the otherwise unclassified metals. There are 20 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 EN AC-21100 aluminum and the bottom bar is reactor grade zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
98
Elongation at Break, % 6.2 to 7.3
21
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 27
37
Tensile Strength: Ultimate (UTS), MPa 340 to 350
330
Tensile Strength: Yield (Proof), MPa 210 to 240
160

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Specific Heat Capacity, J/kg-K 880
270
Thermal Conductivity, W/m-K 130
22
Thermal Expansion, µm/m-K 23
5.9

Otherwise Unclassified Properties

Density, g/cm3 3.0
6.5
Embodied Water, L/kg 1150
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 21
56
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 400
130
Stiffness to Weight: Axial, points 13
8.4
Stiffness to Weight: Bending, points 46
24
Strength to Weight: Axial, points 31 to 33
14
Strength to Weight: Bending, points 36 to 37
16
Thermal Diffusivity, mm2/s 48
13
Thermal Shock Resistance, points 15
41

Alloy Composition

Aluminum (Al), % 93.4 to 95.7
0
Copper (Cu), % 4.2 to 5.2
0
Iron (Fe), % 0 to 0.19
0
Manganese (Mn), % 0 to 0.55
0
Silicon (Si), % 0 to 0.18
0
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.070
0
Zirconium (Zr), % 0
99.7 to 100
Residuals, % 0
0 to 0.27