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2117 Aluminum vs. EN 1.6228 Steel

2117 aluminum belongs to the aluminum alloys classification, while EN 1.6228 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 1.6228 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 70
170
Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 26
25
Fatigue Strength, MPa 95
280
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Shear Strength, MPa 200
360
Tensile Strength: Ultimate (UTS), MPa 300
570
Tensile Strength: Yield (Proof), MPa 170
390

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 220
400
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
51
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 10
2.8
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
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
130
Resilience: Unit (Modulus of Resilience), kJ/m3 190
400
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
24
Strength to Weight: Axial, points 28
20
Strength to Weight: Bending, points 33
19
Thermal Diffusivity, mm2/s 59
14
Thermal Shock Resistance, points 12
17

Alloy Composition

Aluminum (Al), % 91 to 97.6
0
Carbon (C), % 0
0 to 0.18
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 2.2 to 4.5
0
Iron (Fe), % 0 to 0.7
96.2 to 97.9
Magnesium (Mg), % 0.2 to 1.0
0
Manganese (Mn), % 0.4 to 1.0
0.8 to 1.5
Nickel (Ni), % 0
1.3 to 1.7
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0.2 to 0.8
0 to 0.35
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.25
0
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0 to 0.15
0