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6151 Aluminum vs. Grade 702C Zirconium

6151 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 6151 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, % 1.1 to 5.7
13
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
36
Tensile Strength: Ultimate (UTS), MPa 330 to 340
430
Tensile Strength: Yield (Proof), MPa 270 to 280
310

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Specific Heat Capacity, J/kg-K 900
270
Thermal Conductivity, W/m-K 170
22
Thermal Expansion, µm/m-K 23
5.7

Otherwise Unclassified Properties

Density, g/cm3 2.7
6.7
Embodied Water, L/kg 1180
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.5 to 18
52
Resilience: Unit (Modulus of Resilience), kJ/m3 520 to 580
510
Stiffness to Weight: Axial, points 14
8.1
Stiffness to Weight: Bending, points 50
23
Strength to Weight: Axial, points 34
18
Strength to Weight: Bending, points 39
19
Thermal Diffusivity, mm2/s 70
12
Thermal Shock Resistance, points 15
55

Alloy Composition

Aluminum (Al), % 95.6 to 98.8
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0.15 to 0.35
0
Copper (Cu), % 0 to 0.35
0
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 0 to 1.0
0 to 0.3
Magnesium (Mg), % 0.45 to 0.8
0
Manganese (Mn), % 0 to 0.2
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0.6 to 1.2
0
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0
94.8 to 100
Residuals, % 0 to 0.15
0