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3005 Aluminum vs. 7076 Aluminum

Both 3005 aluminum and 7076 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 3005 aluminum and the bottom bar is 7076 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 33 to 73
160
Elastic (Young's, Tensile) Modulus, GPa 70
70
Elongation at Break, % 1.1 to 16
6.2
Fatigue Strength, MPa 53 to 100
170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
27
Shear Strength, MPa 84 to 150
310
Tensile Strength: Ultimate (UTS), MPa 140 to 270
530
Tensile Strength: Yield (Proof), MPa 51 to 240
460

Thermal Properties

Latent Heat of Fusion, J/g 400
380
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 660
630
Melting Onset (Solidus), °C 640
460
Specific Heat Capacity, J/kg-K 900
860
Thermal Conductivity, W/m-K 160
140
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
35
Electrical Conductivity: Equal Weight (Specific), % IACS 140
100

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.8
3.0
Embodied Carbon, kg CO2/kg material 8.2
8.0
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.2 to 18
31
Resilience: Unit (Modulus of Resilience), kJ/m3 18 to 390
1510
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
45
Strength to Weight: Axial, points 14 to 27
49
Strength to Weight: Bending, points 21 to 33
48
Thermal Diffusivity, mm2/s 64
54
Thermal Shock Resistance, points 6.0 to 12
23

Alloy Composition

Aluminum (Al), % 95.7 to 98.8
86.9 to 91.2
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.3
0.3 to 1.0
Iron (Fe), % 0 to 0.7
0 to 0.6
Magnesium (Mg), % 0.2 to 0.6
1.2 to 2.0
Manganese (Mn), % 1.0 to 1.5
0.3 to 0.8
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
7.0 to 8.0
Residuals, % 0
0 to 0.15