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EN 1.8151 Steel vs. 444.0 Aluminum

EN 1.8151 steel belongs to the iron alloys classification, while 444.0 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 444.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 540
50
Elastic (Young's, Tensile) Modulus, GPa 190
71
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
27
Tensile Strength: Ultimate (UTS), MPa 670 to 1940
190

Thermal Properties

Latent Heat of Fusion, J/g 270
500
Maximum Temperature: Mechanical, °C 410
170
Melting Completion (Liquidus), °C 1440
610
Melting Onset (Solidus), °C 1400
600
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 50
160
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
40
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
140

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
9.5
Density, g/cm3 7.7
2.6
Embodied Carbon, kg CO2/kg material 1.8
7.9
Embodied Energy, MJ/kg 25
150
Embodied Water, L/kg 49
1110

Common Calculations

Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 25
53
Strength to Weight: Axial, points 24 to 70
20
Strength to Weight: Bending, points 22 to 45
28
Thermal Diffusivity, mm2/s 14
67
Thermal Shock Resistance, points 20 to 58
8.8

Alloy Composition


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Aluminum (Al), % 0
90.5 to 93.5
Carbon (C), % 0.4 to 0.5
0
Chromium (Cr), % 0.4 to 0.8
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 95.9 to 97.2
0 to 0.6
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0.6 to 0.9
0 to 0.35
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 1.3 to 1.7
6.5 to 7.5
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.25
Vanadium (V), % 0.1 to 0.2
0
Zinc (Zn), % 0
0 to 0.35
Residuals, % 0
0 to 0.15