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2117 Aluminum vs. EN 1.8869 Steel

2117 aluminum belongs to the aluminum alloys classification, while EN 1.8869 steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, 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 2117 aluminum and the bottom bar is EN 1.8869 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 70
160
Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 26
25
Fatigue Strength, MPa 95
260
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Shear Strength, MPa 200
350
Tensile Strength: Ultimate (UTS), MPa 300
540
Tensile Strength: Yield (Proof), MPa 170
360

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 220
410
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 550
1420
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 150
48
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 10
2.4
Density, g/cm3 3.0
7.9
Embodied Carbon, kg CO2/kg material 8.2
1.6
Embodied Energy, MJ/kg 150
21
Embodied Water, L/kg 1150
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
120
Resilience: Unit (Modulus of Resilience), kJ/m3 190
340
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
24
Strength to Weight: Axial, points 28
19
Strength to Weight: Bending, points 33
19
Thermal Diffusivity, mm2/s 59
13
Thermal Shock Resistance, points 12
16

Alloy Composition

Aluminum (Al), % 91 to 97.6
0
Boron (B), % 0
0 to 0.0050
Carbon (C), % 0
0 to 0.16
Chromium (Cr), % 0 to 0.1
0 to 0.3
Copper (Cu), % 2.2 to 4.5
0 to 0.3
Iron (Fe), % 0 to 0.7
96.4 to 100
Magnesium (Mg), % 0.2 to 1.0
0
Manganese (Mn), % 0.4 to 1.0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.25
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0.2 to 0.8
0 to 0.4
Sulfur (S), % 0
0 to 0.0050
Titanium (Ti), % 0 to 0.25
0 to 0.030
Vanadium (V), % 0
0 to 0.060
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0 to 0.25
0 to 0.050
Residuals, % 0 to 0.15
0