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EN AC-45100 Aluminum vs. 2218 Aluminum

Both EN AC-45100 aluminum and 2218 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-45100 aluminum and the bottom bar is 2218 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 97 to 130
95 to 110
Elastic (Young's, Tensile) Modulus, GPa 72
73
Elongation at Break, % 1.0 to 2.8
6.8 to 10
Fatigue Strength, MPa 82 to 99
110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Tensile Strength: Ultimate (UTS), MPa 300 to 360
330 to 430
Tensile Strength: Yield (Proof), MPa 210 to 320
260 to 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 550
510
Specific Heat Capacity, J/kg-K 890
870
Thermal Conductivity, W/m-K 140
140
Thermal Expansion, µm/m-K 22
22

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 10
11
Density, g/cm3 2.8
3.1
Embodied Carbon, kg CO2/kg material 7.9
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1100
1130

Common Calculations

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

Alloy Composition

Aluminum (Al), % 88 to 92.8
88.8 to 93.6
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), % 0.15 to 0.45
1.2 to 1.8
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