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7076 Aluminum vs. 3005 Aluminum

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

Aluminum (Al), % 86.9 to 91.2
95.7 to 98.8
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0.3 to 1.0
0 to 0.3
Iron (Fe), % 0 to 0.6
0 to 0.7
Magnesium (Mg), % 1.2 to 2.0
0.2 to 0.6
Manganese (Mn), % 0.3 to 0.8
1.0 to 1.5
Silicon (Si), % 0 to 0.4
0 to 0.6
Titanium (Ti), % 0 to 0.2
0 to 0.1
Zinc (Zn), % 7.0 to 8.0
0 to 0.25
Residuals, % 0
0 to 0.15