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5251-H26 Aluminum vs. 5657-H26 Aluminum

Both 5251-H26 aluminum and 5657-H26 aluminum are aluminum alloys. Both are furnished in the H26 temper. They have a very high 98% 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 5251-H26 aluminum and the bottom bar is 5657-H26 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
68
Elongation at Break, % 5.6
8.0
Fatigue Strength, MPa 110
88
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 140
100
Tensile Strength: Ultimate (UTS), MPa 240
180
Tensile Strength: Yield (Proof), MPa 200
150

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 180
180
Melting Completion (Liquidus), °C 650
660
Melting Onset (Solidus), °C 610
640
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 150
210
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
54
Electrical Conductivity: Equal Weight (Specific), % IACS 120
180

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
8.4
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
13
Resilience: Unit (Modulus of Resilience), kJ/m3 280
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 25
18
Strength to Weight: Bending, points 32
26
Thermal Diffusivity, mm2/s 61
84
Thermal Shock Resistance, points 11
7.8

Alloy Composition

Aluminum (Al), % 95.5 to 98.2
98.5 to 99.4
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 0 to 0.15
0 to 0.1
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 0 to 0.5
0 to 0.1
Magnesium (Mg), % 1.7 to 2.4
0.6 to 1.0
Manganese (Mn), % 0.1 to 0.5
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 0.080
Titanium (Ti), % 0 to 0.15
0
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.15
0 to 0.050
Residuals, % 0 to 0.15
0 to 0.050