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2018 Aluminum vs. EN 1.1152 Steel

2018 aluminum belongs to the aluminum alloys classification, while EN 1.1152 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 2018 aluminum and the bottom bar is EN 1.1152 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
120 to 160
Elastic (Young's, Tensile) Modulus, GPa 73
190
Elongation at Break, % 9.6
12 to 22
Fatigue Strength, MPa 120
190 to 300
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Shear Strength, MPa 270
290 to 340
Tensile Strength: Ultimate (UTS), MPa 420
400 to 550
Tensile Strength: Yield (Proof), MPa 310
270 to 440

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Maximum Temperature: Mechanical, °C 220
400
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 510
1420
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 150
52
Thermal Expansion, µm/m-K 22
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 11
1.8
Density, g/cm3 3.1
7.8
Embodied Carbon, kg CO2/kg material 8.1
1.4
Embodied Energy, MJ/kg 150
18
Embodied Water, L/kg 1130
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37
41 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 670
200 to 530
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
24
Strength to Weight: Axial, points 38
14 to 19
Strength to Weight: Bending, points 41
15 to 19
Thermal Diffusivity, mm2/s 57
14
Thermal Shock Resistance, points 19
13 to 17

Alloy Composition

Aluminum (Al), % 89.7 to 94.4
0
Carbon (C), % 0
0.18 to 0.22
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.5 to 4.5
0 to 0.25
Iron (Fe), % 0 to 1.0
98.6 to 99.52
Magnesium (Mg), % 0.45 to 0.9
0
Manganese (Mn), % 0 to 0.2
0.3 to 0.6
Nickel (Ni), % 1.7 to 2.3
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.9
0 to 0.3
Sulfur (S), % 0
0 to 0.025
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0