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5449 Aluminum vs. 5070 Aluminum

Both 5449 aluminum and 5070 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 5449 aluminum and the bottom bar is 5070 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
68
Elongation at Break, % 4.0 to 17
20
Fatigue Strength, MPa 78 to 120
150
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 130 to 190
190
Tensile Strength: Ultimate (UTS), MPa 210 to 330
300
Tensile Strength: Yield (Proof), MPa 91 to 260
140

Thermal Properties

Latent Heat of Fusion, J/g 400
390
Maximum Temperature: Mechanical, °C 190
190
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 590
550
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 140
130
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
31
Electrical Conductivity: Equal Weight (Specific), % IACS 110
100

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.8
2.7
Embodied Carbon, kg CO2/kg material 8.5
8.8
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 29
51
Resilience: Unit (Modulus of Resilience), kJ/m3 60 to 480
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 22 to 33
31
Strength to Weight: Bending, points 29 to 39
37
Thermal Diffusivity, mm2/s 56
53
Thermal Shock Resistance, points 9.4 to 15
14

Alloy Composition

Aluminum (Al), % 94.1 to 97.8
92.4 to 95.7
Chromium (Cr), % 0 to 0.3
0 to 0.3
Copper (Cu), % 0 to 0.3
0 to 0.25
Iron (Fe), % 0 to 0.7
0 to 0.4
Magnesium (Mg), % 1.6 to 2.6
3.5 to 4.5
Manganese (Mn), % 0.6 to 1.1
0.4 to 0.8
Silicon (Si), % 0 to 0.4
0 to 0.25
Titanium (Ti), % 0 to 0.1
0 to 0.15
Zinc (Zn), % 0 to 0.3
0.4 to 0.8
Residuals, % 0
0 to 0.15