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6082 Aluminum vs. 7076 Aluminum

Both 6082 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 6082 aluminum and the bottom bar is 7076 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 40 to 95
160
Elastic (Young's, Tensile) Modulus, GPa 69
70
Elongation at Break, % 6.3 to 18
6.2
Fatigue Strength, MPa 55 to 130
170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
27
Shear Strength, MPa 84 to 220
310
Tensile Strength: Ultimate (UTS), MPa 140 to 340
530
Tensile Strength: Yield (Proof), MPa 85 to 320
460

Thermal Properties

Latent Heat of Fusion, J/g 410
380
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 650
630
Melting Onset (Solidus), °C 580
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 2.7
3.0
Embodied Carbon, kg CO2/kg material 8.3
8.0
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1170
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 43
31
Resilience: Unit (Modulus of Resilience), kJ/m3 52 to 710
1510
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
45
Strength to Weight: Axial, points 14 to 35
49
Strength to Weight: Bending, points 21 to 40
48
Thermal Diffusivity, mm2/s 67
54
Thermal Shock Resistance, points 6.0 to 15
23

Alloy Composition

Aluminum (Al), % 95.2 to 98.3
86.9 to 91.2
Chromium (Cr), % 0 to 0.25
0
Copper (Cu), % 0 to 0.1
0.3 to 1.0
Iron (Fe), % 0 to 0.5
0 to 0.6
Magnesium (Mg), % 0.6 to 1.2
1.2 to 2.0
Manganese (Mn), % 0.4 to 1.0
0.3 to 0.8
Silicon (Si), % 0.7 to 1.3
0 to 0.4
Titanium (Ti), % 0 to 0.1
0 to 0.2
Zinc (Zn), % 0 to 0.2
7.0 to 8.0
Residuals, % 0
0 to 0.15