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2218 Aluminum vs. EN AC-45400 Aluminum

Both 2218 aluminum and EN AC-45400 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 2218 aluminum and the bottom bar is EN AC-45400 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 95 to 110
86
Elastic (Young's, Tensile) Modulus, GPa 73
72
Elongation at Break, % 6.8 to 10
6.7
Fatigue Strength, MPa 110
55
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Tensile Strength: Ultimate (UTS), MPa 330 to 430
260
Tensile Strength: Yield (Proof), MPa 260 to 310
130

Thermal Properties

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
30
Electrical Conductivity: Equal Weight (Specific), % IACS 110
95

Otherwise Unclassified Properties

Base Metal Price, % relative 11
10
Density, g/cm3 3.1
2.8
Embodied Carbon, kg CO2/kg material 8.2
7.8
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1130
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27 to 31
14
Resilience: Unit (Modulus of Resilience), kJ/m3 450 to 650
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
49
Strength to Weight: Axial, points 30 to 39
25
Strength to Weight: Bending, points 34 to 41
32
Thermal Diffusivity, mm2/s 52
54
Thermal Shock Resistance, points 15 to 19
12

Alloy Composition

Aluminum (Al), % 88.8 to 93.6
88.4 to 92.9
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.5 to 4.5
2.6 to 3.6
Iron (Fe), % 0 to 1.0
0 to 0.6
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 1.2 to 1.8
0 to 0.050
Manganese (Mn), % 0 to 0.2
0 to 0.55
Nickel (Ni), % 1.7 to 2.3
0 to 0.1
Silicon (Si), % 0 to 0.9
4.5 to 6.0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0 to 0.25
0 to 0.2
Residuals, % 0
0 to 0.15