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2618A Aluminum vs. R60704 Alloy

2618A aluminum belongs to the aluminum alloys classification, while R60704 alloy belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (10, 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 2618A aluminum and the bottom bar is R60704 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
97
Elongation at Break, % 4.5
16
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 27
36
Tensile Strength: Ultimate (UTS), MPa 440
470
Tensile Strength: Yield (Proof), MPa 410
270

Thermal Properties

Latent Heat of Fusion, J/g 390
240
Specific Heat Capacity, J/kg-K 880
270
Thermal Conductivity, W/m-K 150
22
Thermal Expansion, µm/m-K 23
6.0

Otherwise Unclassified Properties

Density, g/cm3 3.0
6.7
Embodied Water, L/kg 1150
460

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
64
Resilience: Unit (Modulus of Resilience), kJ/m3 1180
370
Stiffness to Weight: Axial, points 13
8.1
Stiffness to Weight: Bending, points 47
23
Strength to Weight: Axial, points 41
20
Strength to Weight: Bending, points 44
20
Thermal Diffusivity, mm2/s 59
12
Thermal Shock Resistance, points 19
58

Alloy Composition

Aluminum (Al), % 91.5 to 95.2
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
0.2 to 0.4
Copper (Cu), % 1.8 to 2.7
0
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 0.9 to 1.4
0.2 to 0.4
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0 to 0.25
0
Nickel (Ni), % 0.8 to 1.4
0
Nitrogen (N), % 0
0 to 0.025
Oxygen (O), % 0
0 to 0.18
Silicon (Si), % 0.15 to 0.25
0
Tin (Sn), % 0
1.0 to 2.0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.15
0
Zirconium (Zr), % 0 to 0.25
93 to 98.8
Residuals, % 0 to 0.15
0