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EN 1.8151 Steel vs. EN AC-45100 Aluminum

EN 1.8151 steel belongs to the iron alloys classification, while EN AC-45100 aluminum belongs to the aluminum alloys. There are 25 material properties with values for both materials. Properties with values for just one material (5, 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 EN 1.8151 steel and the bottom bar is EN AC-45100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 540
97 to 130
Elastic (Young's, Tensile) Modulus, GPa 190
72
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
27
Tensile Strength: Ultimate (UTS), MPa 670 to 1940
300 to 360

Thermal Properties

Latent Heat of Fusion, J/g 270
470
Maximum Temperature: Mechanical, °C 410
170
Melting Completion (Liquidus), °C 1440
630
Melting Onset (Solidus), °C 1400
550
Specific Heat Capacity, J/kg-K 480
890
Thermal Conductivity, W/m-K 50
140
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
30
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
95

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
10
Density, g/cm3 7.7
2.8
Embodied Carbon, kg CO2/kg material 1.8
7.9
Embodied Energy, MJ/kg 25
150
Embodied Water, L/kg 49
1100

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
49
Strength to Weight: Axial, points 24 to 70
30 to 35
Strength to Weight: Bending, points 22 to 45
35 to 39
Thermal Diffusivity, mm2/s 14
54
Thermal Shock Resistance, points 20 to 58
14 to 16

Alloy Composition


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Aluminum (Al), % 0
88 to 92.8
Carbon (C), % 0.4 to 0.5
0
Chromium (Cr), % 0.4 to 0.8
0
Copper (Cu), % 0
2.6 to 3.6
Iron (Fe), % 95.9 to 97.2
0 to 0.6
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0
0.15 to 0.45
Manganese (Mn), % 0.6 to 0.9
0 to 0.55
Nickel (Ni), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 1.3 to 1.7
4.5 to 6.0
Sulfur (S), % 0 to 0.025
0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0 to 0.25
Vanadium (V), % 0.1 to 0.2
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15