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2124 Aluminum vs. R60706 Alloy

2124 aluminum belongs to the aluminum alloys classification, while R60706 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 2124 aluminum and the bottom bar is R60706 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
98
Elongation at Break, % 5.7
16
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 27
37
Tensile Strength: Ultimate (UTS), MPa 490
580
Tensile Strength: Yield (Proof), MPa 430
390

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Specific Heat Capacity, J/kg-K 880
270
Thermal Conductivity, W/m-K 150
17
Thermal Expansion, µm/m-K 23
6.3

Otherwise Unclassified Properties

Density, g/cm3 3.0
6.7
Embodied Water, L/kg 1150
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
82
Resilience: Unit (Modulus of Resilience), kJ/m3 1290
760
Stiffness to Weight: Axial, points 13
8.1
Stiffness to Weight: Bending, points 46
23
Strength to Weight: Axial, points 45
24
Strength to Weight: Bending, points 46
23
Thermal Diffusivity, mm2/s 58
9.5
Thermal Shock Resistance, points 21
67

Alloy Composition

Aluminum (Al), % 91.3 to 94.7
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0 to 0.1
0 to 0.2
Copper (Cu), % 3.8 to 4.9
0
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 0 to 0.3
0 to 0.2
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0.3 to 0.9
0
Niobium (Nb), % 0
2.0 to 3.0
Nitrogen (N), % 0
0 to 0.025
Oxygen (O), % 0
0 to 0.16
Silicon (Si), % 0 to 0.2
0
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0
91 to 98
Residuals, % 0 to 0.15
0