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5251 Aluminum vs. 5454 Aluminum

Both 5251 aluminum and 5454 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 5251 aluminum and the bottom bar is 5454 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 44 to 79
61 to 93
Elastic (Young's, Tensile) Modulus, GPa 68
69
Elongation at Break, % 2.0 to 19
2.3 to 18
Fatigue Strength, MPa 59 to 110
83 to 160
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 110 to 160
140 to 200
Tensile Strength: Ultimate (UTS), MPa 180 to 280
230 to 350
Tensile Strength: Yield (Proof), MPa 67 to 250
97 to 290

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 180
190
Melting Completion (Liquidus), °C 650
650
Melting Onset (Solidus), °C 610
600
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 150
130
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
34
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 8.5
8.6
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.4 to 27
6.3 to 34
Resilience: Unit (Modulus of Resilience), kJ/m3 33 to 450
68 to 590
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 18 to 29
23 to 36
Strength to Weight: Bending, points 26 to 35
30 to 41
Thermal Diffusivity, mm2/s 61
55
Thermal Shock Resistance, points 7.9 to 13
10 to 16

Alloy Composition

Aluminum (Al), % 95.5 to 98.2
94.5 to 97.1
Chromium (Cr), % 0 to 0.15
0.050 to 0.2
Copper (Cu), % 0 to 0.15
0 to 0.1
Iron (Fe), % 0 to 0.5
0 to 0.4
Magnesium (Mg), % 1.7 to 2.4
2.4 to 3.0
Manganese (Mn), % 0.1 to 0.5
0.5 to 1.0
Silicon (Si), % 0 to 0.4
0 to 0.25
Titanium (Ti), % 0 to 0.15
0 to 0.2
Zinc (Zn), % 0 to 0.15
0 to 0.25
Residuals, % 0
0 to 0.15

Comparable Variants