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2218 Aluminum vs. EN 1.3961 Alloy

2218 aluminum belongs to the aluminum alloys classification, while EN 1.3961 alloy belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 2218 aluminum and the bottom bar is EN 1.3961 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
190
Elongation at Break, % 6.8 to 10
31
Poisson's Ratio 0.33
0.3
Shear Modulus, GPa 27
72
Shear Strength, MPa 210 to 250
300
Tensile Strength: Ultimate (UTS), MPa 330 to 430
450
Tensile Strength: Yield (Proof), MPa 260 to 310
310

Thermal Properties

Latent Heat of Fusion, J/g 390
270
Melting Completion (Liquidus), °C 640
1430
Melting Onset (Solidus), °C 510
1390
Specific Heat Capacity, J/kg-K 870
460
Thermal Expansion, µm/m-K 22
1.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
25
Density, g/cm3 3.1
8.2
Embodied Carbon, kg CO2/kg material 8.2
4.8
Embodied Energy, MJ/kg 150
66
Embodied Water, L/kg 1130
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27 to 31
130
Resilience: Unit (Modulus of Resilience), kJ/m3 450 to 650
250
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
23
Strength to Weight: Axial, points 30 to 39
15
Strength to Weight: Bending, points 34 to 41
16
Thermal Shock Resistance, points 15 to 19
130

Alloy Composition

Aluminum (Al), % 88.8 to 93.6
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0 to 0.1
0 to 0.25
Copper (Cu), % 3.5 to 4.5
0
Iron (Fe), % 0 to 1.0
60.7 to 65
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0 to 0.2
0 to 0.5
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 1.7 to 2.3
35 to 37
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.9
0 to 0.5
Sulfur (S), % 0
0 to 0.020
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0