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Grade 702C Zirconium vs. 7475 Aluminum

Grade 702C zirconium belongs to the otherwise unclassified metals classification, while 7475 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 7475 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 97
70
Elongation at Break, % 13
10 to 12
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 36
26
Tensile Strength: Ultimate (UTS), MPa 430
530 to 590
Tensile Strength: Yield (Proof), MPa 310
440 to 520

Thermal Properties

Latent Heat of Fusion, J/g 250
380
Specific Heat Capacity, J/kg-K 270
870
Thermal Conductivity, W/m-K 22
140 to 160
Thermal Expansion, µm/m-K 5.7
23

Otherwise Unclassified Properties

Density, g/cm3 6.7
3.0
Embodied Water, L/kg 450
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
53 to 68
Resilience: Unit (Modulus of Resilience), kJ/m3 510
1390 to 1920
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
46
Strength to Weight: Axial, points 18
49 to 55
Strength to Weight: Bending, points 19
48 to 52
Thermal Diffusivity, mm2/s 12
53 to 63
Thermal Shock Resistance, points 55
23 to 26

Alloy Composition

Aluminum (Al), % 0
88.6 to 91.6
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 0
0.18 to 0.25
Copper (Cu), % 0
1.2 to 1.9
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
0 to 0.12
Magnesium (Mg), % 0
1.9 to 2.6
Manganese (Mn), % 0
0 to 0.060
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 0.1
Titanium (Ti), % 0
0 to 0.060
Zinc (Zn), % 0
5.1 to 6.2
Zirconium (Zr), % 94.8 to 100
0
Residuals, % 0
0 to 0.15