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5070 Aluminum vs. 7475 Aluminum

Both 5070 aluminum and 7475 aluminum are aluminum alloys. They have a moderately high 93% of their average alloy composition in common.

For each property being compared, the top bar is 5070 aluminum and the bottom bar is 7475 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
70
Elongation at Break, % 20
10 to 12
Fatigue Strength, MPa 150
190 to 210
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
26
Shear Strength, MPa 190
320 to 350
Tensile Strength: Ultimate (UTS), MPa 300
530 to 590
Tensile Strength: Yield (Proof), MPa 140
440 to 520

Thermal Properties

Latent Heat of Fusion, J/g 390
380
Maximum Temperature: Mechanical, °C 190
180
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 550
480
Specific Heat Capacity, J/kg-K 900
870
Thermal Conductivity, W/m-K 130
140 to 160
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
33 to 42
Electrical Conductivity: Equal Weight (Specific), % IACS 100
98 to 120

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.7
3.0
Embodied Carbon, kg CO2/kg material 8.8
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1170
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
53 to 68
Resilience: Unit (Modulus of Resilience), kJ/m3 150
1390 to 1920
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
46
Strength to Weight: Axial, points 31
49 to 55
Strength to Weight: Bending, points 37
48 to 52
Thermal Diffusivity, mm2/s 53
53 to 63
Thermal Shock Resistance, points 14
23 to 26

Alloy Composition

Aluminum (Al), % 92.4 to 95.7
88.6 to 91.6
Chromium (Cr), % 0 to 0.3
0.18 to 0.25
Copper (Cu), % 0 to 0.25
1.2 to 1.9
Iron (Fe), % 0 to 0.4
0 to 0.12
Magnesium (Mg), % 3.5 to 4.5
1.9 to 2.6
Manganese (Mn), % 0.4 to 0.8
0 to 0.060
Silicon (Si), % 0 to 0.25
0 to 0.1
Titanium (Ti), % 0 to 0.15
0 to 0.060
Zinc (Zn), % 0.4 to 0.8
5.1 to 6.2
Residuals, % 0 to 0.15
0 to 0.15