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3005-O Aluminum vs. 7075-O Aluminum

Both 3005-O aluminum and 7075-O aluminum are aluminum alloys. Both are furnished in the annealed condition. They have a moderately high 91% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 3005-O aluminum and the bottom bar is 7075-O aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 33
59
Elastic (Young's, Tensile) Modulus, GPa 70
70
Elongation at Break, % 16
12
Fatigue Strength, MPa 53
120
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
26
Shear Strength, MPa 84
150
Tensile Strength: Ultimate (UTS), MPa 140
240
Tensile Strength: Yield (Proof), MPa 51
120

Thermal Properties

Latent Heat of Fusion, J/g 400
380
Maximum Temperature: Mechanical, °C 180
200
Melting Completion (Liquidus), °C 660
640
Melting Onset (Solidus), °C 640
480
Specific Heat Capacity, J/kg-K 900
870
Thermal Conductivity, W/m-K 160
130
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
33
Electrical Conductivity: Equal Weight (Specific), % IACS 140
98

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.8
3.0
Embodied Carbon, kg CO2/kg material 8.2
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18
24
Resilience: Unit (Modulus of Resilience), kJ/m3 18
110
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
46
Strength to Weight: Axial, points 14
22
Strength to Weight: Bending, points 21
28
Thermal Diffusivity, mm2/s 64
50
Thermal Shock Resistance, points 6.0
10

Alloy Composition

Aluminum (Al), % 95.7 to 98.8
86.9 to 91.4
Chromium (Cr), % 0 to 0.1
0.18 to 0.28
Copper (Cu), % 0 to 0.3
1.2 to 2.0
Iron (Fe), % 0 to 0.7
0 to 0.5
Magnesium (Mg), % 0.2 to 0.6
2.1 to 2.9
Manganese (Mn), % 1.0 to 1.5
0 to 0.3
Silicon (Si), % 0 to 0.6
0 to 0.4
Titanium (Ti), % 0 to 0.1
0 to 0.2
Zinc (Zn), % 0 to 0.25
5.1 to 6.1
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15