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1085-H26 Aluminum vs. 5657-H26 Aluminum

Both 1085-H26 aluminum and 5657-H26 aluminum are aluminum alloys. Both are furnished in the H26 temper. Their average alloy composition is basically identical.

For each property being compared, the top bar is 1085-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, % 4.5
8.0
Fatigue Strength, MPa 48
88
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 67
100
Tensile Strength: Ultimate (UTS), MPa 120
180
Tensile Strength: Yield (Proof), MPa 86
150

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 640
660
Melting Onset (Solidus), °C 640
640
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 230
210
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
54
Electrical Conductivity: Equal Weight (Specific), % IACS 200
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 8.3
8.4
Embodied Energy, MJ/kg 160
160
Embodied Water, L/kg 1200
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.8
13
Resilience: Unit (Modulus of Resilience), kJ/m3 54
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 12
18
Strength to Weight: Bending, points 20
26
Thermal Diffusivity, mm2/s 94
84
Thermal Shock Resistance, points 5.2
7.8

Alloy Composition

Aluminum (Al), % 99.85 to 100
98.5 to 99.4
Copper (Cu), % 0 to 0.030
0 to 0.1
Gallium (Ga), % 0 to 0.030
0 to 0.030
Iron (Fe), % 0 to 0.12
0 to 0.1
Magnesium (Mg), % 0 to 0.020
0.6 to 1.0
Manganese (Mn), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.1
0 to 0.080
Titanium (Ti), % 0 to 0.020
0
Vanadium (V), % 0 to 0.050
0 to 0.050
Zinc (Zn), % 0 to 0.030
0 to 0.050
Residuals, % 0 to 0.010
0 to 0.050