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5056 Aluminum vs. 6061 Aluminum

Both 5056 aluminum and 6061 aluminum are aluminum alloys. They have a very high 96% of their average alloy composition in common.

For each property being compared, the top bar is 5056 aluminum and the bottom bar is 6061 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
69
Elongation at Break, % 4.9 to 31
3.4 to 20
Fatigue Strength, MPa 140 to 200
58 to 110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 25
26
Shear Strength, MPa 170 to 240
84 to 210
Tensile Strength: Ultimate (UTS), MPa 290 to 460
130 to 410
Tensile Strength: Yield (Proof), MPa 150 to 410
76 to 370

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 190
170
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 570
580
Specific Heat Capacity, J/kg-K 910
900
Thermal Conductivity, W/m-K 130
170
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
43
Electrical Conductivity: Equal Weight (Specific), % IACS 99
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Calomel Potential, mV -780
-740
Density, g/cm3 2.7
2.7
Embodied Carbon, kg CO2/kg material 9.0
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 140
3.8 to 81
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 1220
42 to 1000
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
50
Strength to Weight: Axial, points 30 to 48
13 to 42
Strength to Weight: Bending, points 36 to 50
21 to 45
Thermal Diffusivity, mm2/s 53
68
Thermal Shock Resistance, points 13 to 20
5.7 to 18

Alloy Composition

Aluminum (Al), % 93 to 95.4
95.9 to 98.6
Chromium (Cr), % 0.050 to 0.2
0.040 to 0.35
Copper (Cu), % 0 to 0.1
0.15 to 0.4
Iron (Fe), % 0 to 0.4
0 to 0.7
Magnesium (Mg), % 4.5 to 5.6
0.8 to 1.2
Manganese (Mn), % 0.050 to 0.2
0 to 0.15
Silicon (Si), % 0 to 0.3
0.4 to 0.8
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0 to 0.1
0 to 0.25
Residuals, % 0
0 to 0.15

Comparable Variants