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4007 Aluminum vs. 7076 Aluminum

Both 4007 aluminum and 7076 aluminum are aluminum alloys. They have a moderately high 90% of their average alloy composition in common.

For each property being compared, the top bar is 4007 aluminum and the bottom bar is 7076 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 32 to 44
160
Elastic (Young's, Tensile) Modulus, GPa 71
70
Elongation at Break, % 5.1 to 23
6.2
Fatigue Strength, MPa 46 to 88
170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
27
Shear Strength, MPa 80 to 90
310
Tensile Strength: Ultimate (UTS), MPa 130 to 160
530
Tensile Strength: Yield (Proof), MPa 50 to 120
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 590
460
Specific Heat Capacity, J/kg-K 890
860
Thermal Conductivity, W/m-K 170
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 8.1
8.0
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1160
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.4 to 23
31
Resilience: Unit (Modulus of Resilience), kJ/m3 18 to 110
1510
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
45
Strength to Weight: Axial, points 12 to 15
49
Strength to Weight: Bending, points 20 to 23
48
Thermal Diffusivity, mm2/s 67
54
Thermal Shock Resistance, points 5.5 to 6.7
23

Alloy Composition

Aluminum (Al), % 94.1 to 97.6
86.9 to 91.2
Chromium (Cr), % 0.050 to 0.25
0
Cobalt (Co), % 0 to 0.050
0
Copper (Cu), % 0 to 0.2
0.3 to 1.0
Iron (Fe), % 0.4 to 1.0
0 to 0.6
Magnesium (Mg), % 0 to 0.2
1.2 to 2.0
Manganese (Mn), % 0.8 to 1.5
0.3 to 0.8
Nickel (Ni), % 0.15 to 0.7
0
Silicon (Si), % 1.0 to 1.7
0 to 0.4
Titanium (Ti), % 0 to 0.1
0 to 0.2
Zinc (Zn), % 0 to 0.1
7.0 to 8.0
Residuals, % 0
0 to 0.15