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5070 Aluminum vs. 6351 Aluminum

Both 5070 aluminum and 6351 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 5070 aluminum and the bottom bar is 6351 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
69
Elongation at Break, % 20
7.8 to 18
Fatigue Strength, MPa 150
79 to 130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 190
84 to 200
Tensile Strength: Ultimate (UTS), MPa 300
140 to 310
Tensile Strength: Yield (Proof), MPa 140
95 to 270

Thermal Properties

Latent Heat of Fusion, J/g 390
410
Maximum Temperature: Mechanical, °C 190
160
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 550
570
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 130
180
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
46
Electrical Conductivity: Equal Weight (Specific), % IACS 100
150

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
2.7
Embodied Carbon, kg CO2/kg material 8.8
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1170
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
20 to 38
Resilience: Unit (Modulus of Resilience), kJ/m3 150
65 to 540
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 31
14 to 32
Strength to Weight: Bending, points 37
22 to 38
Thermal Diffusivity, mm2/s 53
72
Thermal Shock Resistance, points 14
6.1 to 14

Alloy Composition


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Aluminum (Al), % 92.4 to 95.7
96 to 98.5
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 0 to 0.4
0 to 0.5
Magnesium (Mg), % 3.5 to 4.5
0.4 to 0.8
Manganese (Mn), % 0.4 to 0.8
0.4 to 0.8
Silicon (Si), % 0 to 0.25
0.7 to 1.3
Titanium (Ti), % 0 to 0.15
0 to 0.2
Zinc (Zn), % 0.4 to 0.8
0 to 0.2
Residuals, % 0 to 0.15
0 to 0.15