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5070 Aluminum vs. 7003 Aluminum

Both 5070 aluminum and 7003 aluminum are aluminum alloys. They have a moderately high 95% of their average alloy composition in common.

For each property being compared, the top bar is 5070 aluminum and the bottom bar is 7003 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
70
Elongation at Break, % 20
11
Fatigue Strength, MPa 150
130 to 150
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
26
Shear Strength, MPa 190
210 to 230
Tensile Strength: Ultimate (UTS), MPa 300
350 to 390
Tensile Strength: Yield (Proof), MPa 140
300 to 310

Thermal Properties

Latent Heat of Fusion, J/g 390
380
Maximum Temperature: Mechanical, °C 190
200
Melting Completion (Liquidus), °C 640
630
Melting Onset (Solidus), °C 550
510
Specific Heat Capacity, J/kg-K 900
870
Thermal Conductivity, W/m-K 130
150
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
36
Electrical Conductivity: Equal Weight (Specific), % IACS 100
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
2.9
Embodied Carbon, kg CO2/kg material 8.8
8.1
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1170
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
37 to 41
Resilience: Unit (Modulus of Resilience), kJ/m3 150
630 to 710
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
47
Strength to Weight: Axial, points 31
33 to 37
Strength to Weight: Bending, points 37
37 to 40
Thermal Diffusivity, mm2/s 53
59
Thermal Shock Resistance, points 14
15 to 17

Alloy Composition

Aluminum (Al), % 92.4 to 95.7
90.6 to 94.5
Chromium (Cr), % 0 to 0.3
0 to 0.2
Copper (Cu), % 0 to 0.25
0 to 0.2
Iron (Fe), % 0 to 0.4
0 to 0.35
Magnesium (Mg), % 3.5 to 4.5
0.5 to 1.0
Manganese (Mn), % 0.4 to 0.8
0 to 0.3
Silicon (Si), % 0 to 0.25
0 to 0.3
Titanium (Ti), % 0 to 0.15
0 to 0.2
Zinc (Zn), % 0.4 to 0.8
5.0 to 6.5
Zirconium (Zr), % 0
0.050 to 0.25
Residuals, % 0 to 0.15
0 to 0.15