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5254-H28 Aluminum vs. 5449-H28 Aluminum

Both 5254-H28 aluminum and 5449-H28 aluminum are aluminum alloys. Both are furnished in the H28 temper. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is 5254-H28 aluminum and the bottom bar is 5449-H28 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
69
Elongation at Break, % 3.4
4.0
Fatigue Strength, MPa 110
110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 200
190
Tensile Strength: Ultimate (UTS), MPa 350
330
Tensile Strength: Yield (Proof), MPa 270
260

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 190
190
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 590
590
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 130
140
Thermal Expansion, µm/m-K 24
23

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
2.8
Embodied Carbon, kg CO2/kg material 8.8
8.5
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
12
Resilience: Unit (Modulus of Resilience), kJ/m3 550
480
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
50
Strength to Weight: Axial, points 36
33
Strength to Weight: Bending, points 41
39
Thermal Diffusivity, mm2/s 52
56
Thermal Shock Resistance, points 15
15

Alloy Composition

Aluminum (Al), % 94.4 to 96.8
94.1 to 97.8
Chromium (Cr), % 0.15 to 0.35
0 to 0.3
Copper (Cu), % 0 to 0.050
0 to 0.3
Iron (Fe), % 0 to 0.45
0 to 0.7
Magnesium (Mg), % 3.1 to 3.9
1.6 to 2.6
Manganese (Mn), % 0 to 0.010
0.6 to 1.1
Silicon (Si), % 0 to 0.45
0 to 0.4
Titanium (Ti), % 0 to 0.050
0 to 0.1
Zinc (Zn), % 0 to 0.2
0 to 0.3
Residuals, % 0
0 to 0.15