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EN AC-45400 Aluminum vs. 2018 Aluminum

Both EN AC-45400 aluminum and 2018 aluminum are aluminum alloys. They have a moderately high 95% 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-45400 aluminum and the bottom bar is 2018 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 86
120
Elastic (Young's, Tensile) Modulus, GPa 72
73
Elongation at Break, % 6.7
9.6
Fatigue Strength, MPa 55
120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Tensile Strength: Ultimate (UTS), MPa 260
420
Tensile Strength: Yield (Proof), MPa 130
310

Thermal Properties

Latent Heat of Fusion, J/g 470
390
Maximum Temperature: Mechanical, °C 170
220
Melting Completion (Liquidus), °C 630
640
Melting Onset (Solidus), °C 560
510
Specific Heat Capacity, J/kg-K 880
870
Thermal Conductivity, W/m-K 140
150
Thermal Expansion, µm/m-K 22
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
40
Electrical Conductivity: Equal Weight (Specific), % IACS 95
120

Otherwise Unclassified Properties

Base Metal Price, % relative 10
11
Density, g/cm3 2.8
3.1
Embodied Carbon, kg CO2/kg material 7.8
8.1
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1100
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14
37
Resilience: Unit (Modulus of Resilience), kJ/m3 110
670
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
45
Strength to Weight: Axial, points 25
38
Strength to Weight: Bending, points 32
41
Thermal Diffusivity, mm2/s 54
57
Thermal Shock Resistance, points 12
19

Alloy Composition

Aluminum (Al), % 88.4 to 92.9
89.7 to 94.4
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 2.6 to 3.6
3.5 to 4.5
Iron (Fe), % 0 to 0.6
0 to 1.0
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 0 to 0.050
0.45 to 0.9
Manganese (Mn), % 0 to 0.55
0 to 0.2
Nickel (Ni), % 0 to 0.1
1.7 to 2.3
Silicon (Si), % 4.5 to 6.0
0 to 0.9
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.2
0 to 0.25
Residuals, % 0
0 to 0.15