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2218 Aluminum vs. EN AC-51200 Aluminum

Both 2218 aluminum and EN AC-51200 aluminum are aluminum alloys. They have a moderately high 91% 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-51200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 95 to 110
80
Elastic (Young's, Tensile) Modulus, GPa 73
67
Elongation at Break, % 6.8 to 10
1.1
Fatigue Strength, MPa 110
100
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
25
Tensile Strength: Ultimate (UTS), MPa 330 to 430
220
Tensile Strength: Yield (Proof), MPa 260 to 310
150

Thermal Properties

Latent Heat of Fusion, J/g 390
410
Maximum Temperature: Mechanical, °C 220
170
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 510
570
Specific Heat Capacity, J/kg-K 870
910
Thermal Conductivity, W/m-K 140
92
Thermal Expansion, µm/m-K 22
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
22
Electrical Conductivity: Equal Weight (Specific), % IACS 110
74

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 3.1
2.6
Embodied Carbon, kg CO2/kg material 8.2
9.6
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1130
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27 to 31
2.2
Resilience: Unit (Modulus of Resilience), kJ/m3 450 to 650
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
51
Strength to Weight: Axial, points 30 to 39
24
Strength to Weight: Bending, points 34 to 41
31
Thermal Diffusivity, mm2/s 52
39
Thermal Shock Resistance, points 15 to 19
10

Alloy Composition

Aluminum (Al), % 88.8 to 93.6
84.5 to 92
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.5 to 4.5
0 to 0.1
Iron (Fe), % 0 to 1.0
0 to 1.0
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 1.2 to 1.8
8.0 to 10.5
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
0 to 2.5
Tin (Sn), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0 to 0.25
0 to 0.25
Residuals, % 0
0 to 0.15