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2218 Aluminum vs. EN AC-45100 Aluminum

Both 2218 aluminum and EN AC-45100 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-45100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 95 to 110
97 to 130
Elastic (Young's, Tensile) Modulus, GPa 73
72
Elongation at Break, % 6.8 to 10
1.0 to 2.8
Fatigue Strength, MPa 110
82 to 99
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Tensile Strength: Ultimate (UTS), MPa 330 to 430
300 to 360
Tensile Strength: Yield (Proof), MPa 260 to 310
210 to 320

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
550
Specific Heat Capacity, J/kg-K 870
890
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
7.9
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1130
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27 to 31
3.5 to 7.6
Resilience: Unit (Modulus of Resilience), kJ/m3 450 to 650
290 to 710
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
49
Strength to Weight: Axial, points 30 to 39
30 to 35
Strength to Weight: Bending, points 34 to 41
35 to 39
Thermal Diffusivity, mm2/s 52
54
Thermal Shock Resistance, points 15 to 19
14 to 16

Alloy Composition

Aluminum (Al), % 88.8 to 93.6
88 to 92.8
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
0.15 to 0.45
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