MakeItFrom.com
Menu (ESC)

5449 Aluminum vs. 5021 Aluminum

Both 5449 aluminum and 5021 aluminum are aluminum alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is 5449 aluminum and the bottom bar is 5021 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
68
Elongation at Break, % 4.0 to 17
1.1 to 3.4
Fatigue Strength, MPa 78 to 120
85 to 110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 130 to 190
170
Tensile Strength: Ultimate (UTS), MPa 210 to 330
300 to 310
Tensile Strength: Yield (Proof), MPa 91 to 260
240 to 270

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 190
180
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 590
590
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 140
140
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
35
Electrical Conductivity: Equal Weight (Specific), % IACS 110
120

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.8
2.7
Embodied Carbon, kg CO2/kg material 8.5
8.6
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 29
3.1 to 10
Resilience: Unit (Modulus of Resilience), kJ/m3 60 to 480
440 to 550
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 22 to 33
30 to 32
Strength to Weight: Bending, points 29 to 39
37
Thermal Diffusivity, mm2/s 56
57
Thermal Shock Resistance, points 9.4 to 15
13 to 14

Alloy Composition

Aluminum (Al), % 94.1 to 97.8
95.2 to 97.7
Chromium (Cr), % 0 to 0.3
0 to 0.15
Copper (Cu), % 0 to 0.3
0 to 0.15
Iron (Fe), % 0 to 0.7
0 to 0.5
Magnesium (Mg), % 1.6 to 2.6
2.2 to 2.8
Manganese (Mn), % 0.6 to 1.1
0.1 to 0.5
Silicon (Si), % 0 to 0.4
0 to 0.4
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.3
0 to 0.15
Residuals, % 0
0 to 0.15