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5021 Aluminum vs. 5254 Aluminum

Both 5021 aluminum and 5254 aluminum are aluminum alloys. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is 5021 aluminum and the bottom bar is 5254 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
68
Elongation at Break, % 1.1 to 3.4
3.4 to 22
Fatigue Strength, MPa 85 to 110
110 to 160
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 170
150 to 200
Tensile Strength: Ultimate (UTS), MPa 300 to 310
240 to 350
Tensile Strength: Yield (Proof), MPa 240 to 270
100 to 270

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 180
190
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 590
590
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 140
130
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
32
Electrical Conductivity: Equal Weight (Specific), % IACS 120
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
2.7
Embodied Carbon, kg CO2/kg material 8.6
8.8
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.1 to 10
11 to 41
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 550
73 to 550
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
51
Strength to Weight: Axial, points 30 to 32
25 to 37
Strength to Weight: Bending, points 37
32 to 41
Thermal Diffusivity, mm2/s 57
52
Thermal Shock Resistance, points 13 to 14
10 to 16

Alloy Composition

Aluminum (Al), % 95.2 to 97.7
94.4 to 96.8
Chromium (Cr), % 0 to 0.15
0.15 to 0.35
Copper (Cu), % 0 to 0.15
0 to 0.050
Iron (Fe), % 0 to 0.5
0 to 0.45
Magnesium (Mg), % 2.2 to 2.8
3.1 to 3.9
Manganese (Mn), % 0.1 to 0.5
0 to 0.010
Silicon (Si), % 0 to 0.4
0 to 0.45
Titanium (Ti), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.15
0 to 0.2
Residuals, % 0
0 to 0.15

Comparable Variants