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5456 Aluminum vs. R05255 Alloy

5456 aluminum belongs to the aluminum alloys classification, while R05255 alloy belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (11, 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 5456 aluminum and the bottom bar is R05255 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 11 to 18
20
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
70
Tensile Strength: Ultimate (UTS), MPa 320 to 340
540
Tensile Strength: Yield (Proof), MPa 150 to 250
450

Thermal Properties

Latent Heat of Fusion, J/g 390
140
Specific Heat Capacity, J/kg-K 900
140
Thermal Conductivity, W/m-K 120
59
Thermal Expansion, µm/m-K 24
6.6

Otherwise Unclassified Properties

Density, g/cm3 2.7
17
Embodied Water, L/kg 1170
630

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 33 to 46
100
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 470
530
Stiffness to Weight: Axial, points 14
6.3
Stiffness to Weight: Bending, points 50
11
Strength to Weight: Axial, points 33 to 35
9.1
Strength to Weight: Bending, points 38 to 40
8.9
Thermal Diffusivity, mm2/s 48
25
Thermal Shock Resistance, points 14 to 15
31

Alloy Composition

Aluminum (Al), % 92 to 94.8
0
Carbon (C), % 0
0 to 0.010
Chromium (Cr), % 0.050 to 0.2
0
Copper (Cu), % 0 to 0.1
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0 to 0.4
0 to 0.010
Magnesium (Mg), % 4.7 to 5.5
0
Manganese (Mn), % 0.5 to 1.0
0
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 0
0 to 0.010
Niobium (Nb), % 0
0 to 0.5
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.015
Silicon (Si), % 0 to 0.25
0 to 0.0050
Tantalum (Ta), % 0
95.9 to 98
Titanium (Ti), % 0 to 0.2
0 to 0.010
Tungsten (W), % 0
2.0 to 3.5
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0