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2117 Aluminum vs. 5021 Aluminum

Both 2117 aluminum and 5021 aluminum are aluminum alloys. They have a very high 96% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 2117 aluminum and the bottom bar is 5021 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
68
Elongation at Break, % 26
1.1 to 3.4
Fatigue Strength, MPa 95
85 to 110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
26
Shear Strength, MPa 200
170
Tensile Strength: Ultimate (UTS), MPa 300
300 to 310
Tensile Strength: Yield (Proof), MPa 170
240 to 270

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 220
180
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 550
590
Specific Heat Capacity, J/kg-K 880
900
Thermal Conductivity, W/m-K 150
140
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
35
Electrical Conductivity: Equal Weight (Specific), % IACS 120
120

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 3.0
2.7
Embodied Carbon, kg CO2/kg material 8.2
8.6
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
3.1 to 10
Resilience: Unit (Modulus of Resilience), kJ/m3 190
440 to 550
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
50
Strength to Weight: Axial, points 28
30 to 32
Strength to Weight: Bending, points 33
37
Thermal Diffusivity, mm2/s 59
57
Thermal Shock Resistance, points 12
13 to 14

Alloy Composition

Aluminum (Al), % 91 to 97.6
95.2 to 97.7
Chromium (Cr), % 0 to 0.1
0 to 0.15
Copper (Cu), % 2.2 to 4.5
0 to 0.15
Iron (Fe), % 0 to 0.7
0 to 0.5
Magnesium (Mg), % 0.2 to 1.0
2.2 to 2.8
Manganese (Mn), % 0.4 to 1.0
0.1 to 0.5
Silicon (Si), % 0.2 to 0.8
0 to 0.4
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.25
0 to 0.15
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0
0 to 0.15