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EN AC-46200 Aluminum vs. 7178 Aluminum

Both EN AC-46200 aluminum and 7178 aluminum are aluminum alloys. They have a moderately high 90% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN AC-46200 aluminum and the bottom bar is 7178 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
71
Elongation at Break, % 1.1
4.5 to 12
Fatigue Strength, MPa 87
120 to 210
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
27
Tensile Strength: Ultimate (UTS), MPa 210
240 to 640
Tensile Strength: Yield (Proof), MPa 130
120 to 560

Thermal Properties

Latent Heat of Fusion, J/g 510
370
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 620
630
Melting Onset (Solidus), °C 540
480
Specific Heat Capacity, J/kg-K 880
860
Thermal Conductivity, W/m-K 110
130
Thermal Expansion, µm/m-K 22
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
31
Electrical Conductivity: Equal Weight (Specific), % IACS 88
91

Otherwise Unclassified Properties

Base Metal Price, % relative 10
10
Density, g/cm3 2.8
3.1
Embodied Carbon, kg CO2/kg material 7.7
8.2
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1060
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.0
24 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 110
110 to 2220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
45
Strength to Weight: Axial, points 21
21 to 58
Strength to Weight: Bending, points 28
28 to 54
Thermal Diffusivity, mm2/s 44
47
Thermal Shock Resistance, points 9.5
10 to 28

Alloy Composition

Aluminum (Al), % 82.6 to 90.3
85.4 to 89.5
Chromium (Cr), % 0
0.18 to 0.28
Copper (Cu), % 2.0 to 3.5
1.6 to 2.4
Iron (Fe), % 0 to 0.8
0 to 0.5
Lead (Pb), % 0 to 0.25
0
Magnesium (Mg), % 0.050 to 0.55
2.4 to 3.1
Manganese (Mn), % 0.15 to 0.65
0 to 0.3
Nickel (Ni), % 0 to 0.35
0
Silicon (Si), % 7.5 to 9.5
0 to 0.4
Tin (Sn), % 0 to 0.15
0
Titanium (Ti), % 0 to 0.25
0 to 0.2
Zinc (Zn), % 0 to 1.2
6.3 to 7.3
Residuals, % 0
0 to 0.15