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EN AC-21200 Aluminum vs. 7076 Aluminum

Both EN AC-21200 aluminum and 7076 aluminum are aluminum alloys. They have a moderately high 91% 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-21200 aluminum and the bottom bar is 7076 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120 to 130
160
Elastic (Young's, Tensile) Modulus, GPa 71
70
Elongation at Break, % 3.9 to 6.2
6.2
Fatigue Strength, MPa 110 to 130
170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
27
Tensile Strength: Ultimate (UTS), MPa 410 to 440
530
Tensile Strength: Yield (Proof), MPa 270 to 360
460

Thermal Properties

Latent Heat of Fusion, J/g 390
380
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 660
630
Melting Onset (Solidus), °C 550
460
Specific Heat Capacity, J/kg-K 880
860
Thermal Conductivity, W/m-K 130
140
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
35
Electrical Conductivity: Equal Weight (Specific), % IACS 100
100

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 3.0
3.0
Embodied Carbon, kg CO2/kg material 8.0
8.0
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 22
31
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 930
1510
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
45
Strength to Weight: Axial, points 38 to 40
49
Strength to Weight: Bending, points 41 to 43
48
Thermal Diffusivity, mm2/s 49
54
Thermal Shock Resistance, points 18 to 19
23

Alloy Composition

Aluminum (Al), % 93.3 to 95.7
86.9 to 91.2
Copper (Cu), % 4.0 to 5.0
0.3 to 1.0
Iron (Fe), % 0 to 0.2
0 to 0.6
Lead (Pb), % 0 to 0.030
0
Magnesium (Mg), % 0.15 to 0.5
1.2 to 2.0
Manganese (Mn), % 0.2 to 0.5
0.3 to 0.8
Nickel (Ni), % 0 to 0.050
0
Silicon (Si), % 0 to 0.1
0 to 0.4
Tin (Sn), % 0 to 0.030
0
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