MakeItFrom.com
Menu (ESC)

2218 Aluminum vs. EN AC-21100 Aluminum

Both 2218 aluminum and EN AC-21100 aluminum are aluminum alloys. They have a very high 96% 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-21100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 95 to 110
100 to 110
Elastic (Young's, Tensile) Modulus, GPa 73
71
Elongation at Break, % 6.8 to 10
6.2 to 7.3
Fatigue Strength, MPa 110
79 to 87
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Tensile Strength: Ultimate (UTS), MPa 330 to 430
340 to 350
Tensile Strength: Yield (Proof), MPa 260 to 310
210 to 240

Thermal Properties

Latent Heat of Fusion, J/g 390
390
Maximum Temperature: Mechanical, °C 220
170
Melting Completion (Liquidus), °C 640
670
Melting Onset (Solidus), °C 510
550
Specific Heat Capacity, J/kg-K 870
880
Thermal Conductivity, W/m-K 140
130
Thermal Expansion, µm/m-K 22
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
34
Electrical Conductivity: Equal Weight (Specific), % IACS 110
100

Otherwise Unclassified Properties

Base Metal Price, % relative 11
11
Density, g/cm3 3.1
3.0
Embodied Carbon, kg CO2/kg material 8.2
8.0
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1130
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27 to 31
19 to 21
Resilience: Unit (Modulus of Resilience), kJ/m3 450 to 650
300 to 400
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
46
Strength to Weight: Axial, points 30 to 39
31 to 33
Strength to Weight: Bending, points 34 to 41
36 to 37
Thermal Diffusivity, mm2/s 52
48
Thermal Shock Resistance, points 15 to 19
15

Alloy Composition

Aluminum (Al), % 88.8 to 93.6
93.4 to 95.7
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.5 to 4.5
4.2 to 5.2
Iron (Fe), % 0 to 1.0
0 to 0.19
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0 to 0.2
0 to 0.55
Nickel (Ni), % 1.7 to 2.3
0
Silicon (Si), % 0 to 0.9
0 to 0.18
Titanium (Ti), % 0
0.15 to 0.3
Zinc (Zn), % 0 to 0.25
0 to 0.070
Residuals, % 0
0 to 0.1