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5070 Aluminum vs. 7049A Aluminum

Both 5070 aluminum and 7049A aluminum are aluminum alloys. They have a moderately high 91% of their average alloy composition in common.

For each property being compared, the top bar is 5070 aluminum and the bottom bar is 7049A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
71
Elongation at Break, % 20
5.0 to 5.7
Fatigue Strength, MPa 150
180
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
27
Shear Strength, MPa 190
340 to 350
Tensile Strength: Ultimate (UTS), MPa 300
580 to 590
Tensile Strength: Yield (Proof), MPa 140
500 to 530

Thermal Properties

Latent Heat of Fusion, J/g 390
370
Maximum Temperature: Mechanical, °C 190
200
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 550
430
Specific Heat Capacity, J/kg-K 900
850
Thermal Conductivity, W/m-K 130
130
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
40
Electrical Conductivity: Equal Weight (Specific), % IACS 100
120

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.7
3.1
Embodied Carbon, kg CO2/kg material 8.8
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1170
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
28 to 32
Resilience: Unit (Modulus of Resilience), kJ/m3 150
1800 to 1990
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
44
Strength to Weight: Axial, points 31
52 to 53
Strength to Weight: Bending, points 37
50 to 51
Thermal Diffusivity, mm2/s 53
50
Thermal Shock Resistance, points 14
25

Alloy Composition

Aluminum (Al), % 92.4 to 95.7
84.6 to 89.5
Chromium (Cr), % 0 to 0.3
0.050 to 0.25
Copper (Cu), % 0 to 0.25
1.2 to 1.9
Iron (Fe), % 0 to 0.4
0 to 0.5
Magnesium (Mg), % 3.5 to 4.5
2.1 to 3.1
Manganese (Mn), % 0.4 to 0.8
0 to 0.5
Silicon (Si), % 0 to 0.25
0 to 0.4
Titanium (Ti), % 0 to 0.15
0 to 0.25
Zinc (Zn), % 0.4 to 0.8
7.2 to 8.4
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0 to 0.15
0 to 0.15