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5051A Aluminum vs. 1085 Aluminum

Both 5051A aluminum and 1085 aluminum are aluminum alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is 5051A aluminum and the bottom bar is 1085 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
68
Elongation at Break, % 18 to 21
4.5 to 39
Fatigue Strength, MPa 51 to 61
22 to 49
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 110
48 to 79
Tensile Strength: Ultimate (UTS), MPa 170
73 to 140
Tensile Strength: Yield (Proof), MPa 56
17 to 120

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 190
170
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 610
640
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 150
230
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
61
Electrical Conductivity: Equal Weight (Specific), % IACS 130
200

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
8.3
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1190
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 27
4.8 to 21
Resilience: Unit (Modulus of Resilience), kJ/m3 23
2.1 to 110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 17 to 18
7.5 to 14
Strength to Weight: Bending, points 25
14 to 22
Thermal Diffusivity, mm2/s 63
94
Thermal Shock Resistance, points 7.6
3.3 to 6.1

Alloy Composition

Aluminum (Al), % 96.1 to 98.6
99.85 to 100
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.050
0 to 0.030
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 0 to 0.45
0 to 0.12
Magnesium (Mg), % 1.4 to 2.1
0 to 0.020
Manganese (Mn), % 0 to 0.25
0 to 0.020
Silicon (Si), % 0 to 0.3
0 to 0.1
Titanium (Ti), % 0 to 0.1
0 to 0.020
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.2
0 to 0.030
Residuals, % 0
0 to 0.010

Comparable Variants