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6018 Aluminum vs. Grade 702C Zirconium

6018 aluminum belongs to the aluminum alloys classification, while grade 702C zirconium belongs to the otherwise unclassified metals. 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 6018 aluminum and the bottom bar is grade 702C zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
97
Elongation at Break, % 9.0 to 9.1
13
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
36
Tensile Strength: Ultimate (UTS), MPa 290 to 300
430
Tensile Strength: Yield (Proof), MPa 220 to 230
310

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Specific Heat Capacity, J/kg-K 890
270
Thermal Conductivity, W/m-K 170
22
Thermal Expansion, µm/m-K 23
5.7

Otherwise Unclassified Properties

Density, g/cm3 2.9
6.7
Embodied Water, L/kg 1180
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 25
52
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 380
510
Stiffness to Weight: Axial, points 13
8.1
Stiffness to Weight: Bending, points 48
23
Strength to Weight: Axial, points 28 to 29
18
Strength to Weight: Bending, points 34 to 35
19
Thermal Diffusivity, mm2/s 65
12
Thermal Shock Resistance, points 13
55

Alloy Composition

Aluminum (Al), % 93.1 to 97.8
0
Bismuth (Bi), % 0.4 to 0.7
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0.15 to 0.4
0
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 0 to 0.7
0 to 0.3
Lead (Pb), % 0.4 to 1.2
0
Magnesium (Mg), % 0.6 to 1.2
0
Manganese (Mn), % 0.3 to 0.8
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0.5 to 1.2
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.3
0
Zirconium (Zr), % 0
94.8 to 100
Residuals, % 0 to 0.15
0