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2017 Aluminum vs. EN 1.6579 Steel

2017 aluminum belongs to the aluminum alloys classification, while EN 1.6579 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 2017 aluminum and the bottom bar is EN 1.6579 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 12 to 18
11 to 14
Fatigue Strength, MPa 90 to 130
380 to 570
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 190 to 430
850 to 980
Tensile Strength: Yield (Proof), MPa 76 to 260
600 to 910

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Maximum Temperature: Mechanical, °C 190
440
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 510
1410
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 150
39
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 110
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 10
3.7
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 8.0
1.7
Embodied Energy, MJ/kg 150
22
Embodied Water, L/kg 1140
56

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 66
100 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 41 to 470
950 to 2210
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
24
Strength to Weight: Axial, points 17 to 40
30 to 35
Strength to Weight: Bending, points 24 to 42
25 to 28
Thermal Diffusivity, mm2/s 56
11
Thermal Shock Resistance, points 7.9 to 18
25 to 29

Alloy Composition

Aluminum (Al), % 91.6 to 95.5
0
Carbon (C), % 0
0.32 to 0.38
Chromium (Cr), % 0 to 0.1
1.4 to 1.7
Copper (Cu), % 3.5 to 4.5
0
Iron (Fe), % 0 to 0.7
94.2 to 96.1
Magnesium (Mg), % 0.4 to 0.8
0
Manganese (Mn), % 0.4 to 1.0
0.6 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.35
Nickel (Ni), % 0
1.4 to 1.7
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0.2 to 0.8
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0

Comparable Variants