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Grade 702C Zirconium vs. 8090 Aluminum

Grade 702C zirconium belongs to the otherwise unclassified metals classification, while 8090 aluminum belongs to the aluminum alloys. There are 20 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 grade 702C zirconium and the bottom bar is 8090 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 97
67
Elongation at Break, % 13
3.5 to 13
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 36
25
Tensile Strength: Ultimate (UTS), MPa 430
340 to 490
Tensile Strength: Yield (Proof), MPa 310
210 to 420

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Specific Heat Capacity, J/kg-K 270
960
Thermal Conductivity, W/m-K 22
95 to 160
Thermal Expansion, µm/m-K 5.7
24

Otherwise Unclassified Properties

Density, g/cm3 6.7
2.7
Embodied Water, L/kg 450
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
16 to 41
Resilience: Unit (Modulus of Resilience), kJ/m3 510
340 to 1330
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
50
Strength to Weight: Axial, points 18
34 to 49
Strength to Weight: Bending, points 19
39 to 50
Thermal Diffusivity, mm2/s 12
36 to 60
Thermal Shock Resistance, points 55
15 to 22

Alloy Composition

Aluminum (Al), % 0
93 to 98.4
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0
1.0 to 1.6
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
0 to 0.3
Lithium (Li), % 0
2.2 to 2.7
Magnesium (Mg), % 0
0.6 to 1.3
Manganese (Mn), % 0
0 to 0.1
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0
0 to 0.2
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 94.8 to 100
0.040 to 0.16
Residuals, % 0
0 to 0.15