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EN AC-42100 Aluminum vs. 7076 Aluminum

Both EN AC-42100 aluminum and 7076 aluminum are aluminum alloys. They have 90% of their average alloy composition in common. There are 30 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 EN AC-42100 aluminum and the bottom bar is 7076 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 91
160
Elastic (Young's, Tensile) Modulus, GPa 70
70
Elongation at Break, % 3.4 to 9.0
6.2
Fatigue Strength, MPa 76 to 82
170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
27
Tensile Strength: Ultimate (UTS), MPa 280 to 290
530
Tensile Strength: Yield (Proof), MPa 210 to 230
460

Thermal Properties

Latent Heat of Fusion, J/g 500
380
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 610
630
Melting Onset (Solidus), °C 600
460
Specific Heat Capacity, J/kg-K 910
860
Thermal Conductivity, W/m-K 150
140
Thermal Expansion, µm/m-K 22
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
35
Electrical Conductivity: Equal Weight (Specific), % IACS 140
100

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.6
3.0
Embodied Carbon, kg CO2/kg material 8.0
8.0
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1110
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1 to 23
31
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 370
1510
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 53
45
Strength to Weight: Axial, points 30 to 31
49
Strength to Weight: Bending, points 37 to 38
48
Thermal Diffusivity, mm2/s 66
54
Thermal Shock Resistance, points 13
23

Alloy Composition

Aluminum (Al), % 91.3 to 93.3
86.9 to 91.2
Copper (Cu), % 0 to 0.050
0.3 to 1.0
Iron (Fe), % 0 to 0.19
0 to 0.6
Magnesium (Mg), % 0.25 to 0.45
1.2 to 2.0
Manganese (Mn), % 0 to 0.1
0.3 to 0.8
Silicon (Si), % 6.5 to 7.5
0 to 0.4
Titanium (Ti), % 0 to 0.25
0 to 0.2
Zinc (Zn), % 0 to 0.070
7.0 to 8.0
Residuals, % 0
0 to 0.15