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1085 Aluminum vs. R05240 Alloy

1085 aluminum belongs to the aluminum alloys classification, while R05240 alloy belongs to the otherwise unclassified metals. There are 18 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 1085 aluminum and the bottom bar is R05240 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
150
Elongation at Break, % 4.5 to 39
25
Poisson's Ratio 0.33
0.36
Shear Modulus, GPa 26
57
Tensile Strength: Ultimate (UTS), MPa 73 to 140
270
Tensile Strength: Yield (Proof), MPa 17 to 120
170

Thermal Properties

Latent Heat of Fusion, J/g 400
210
Specific Heat Capacity, J/kg-K 900
190
Thermal Expansion, µm/m-K 23
6.8

Otherwise Unclassified Properties

Density, g/cm3 2.7
14
Embodied Water, L/kg 1200
460

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.8 to 21
59
Resilience: Unit (Modulus of Resilience), kJ/m3 2.1 to 110
90
Stiffness to Weight: Axial, points 14
6.3
Stiffness to Weight: Bending, points 50
13
Strength to Weight: Axial, points 7.5 to 14
5.4
Strength to Weight: Bending, points 14 to 22
6.8
Thermal Shock Resistance, points 3.3 to 6.1
18

Alloy Composition

Aluminum (Al), % 99.85 to 100
0
Carbon (C), % 0
0 to 0.010
Copper (Cu), % 0 to 0.030
0
Gallium (Ga), % 0 to 0.030
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0 to 0.12
0 to 0.010
Magnesium (Mg), % 0 to 0.020
0
Manganese (Mn), % 0 to 0.020
0
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 0
0 to 0.010
Niobium (Nb), % 0
35 to 42
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.020
Silicon (Si), % 0 to 0.1
0 to 0.0050
Tantalum (Ta), % 0
57.9 to 65
Titanium (Ti), % 0 to 0.020
0 to 0.010
Tungsten (W), % 0
0 to 0.050
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.030
0
Residuals, % 0 to 0.010
0