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EN 1.7108 Steel vs. EN AC-46400 Aluminum

EN 1.7108 steel belongs to the iron alloys classification, while EN AC-46400 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 1.7108 steel and the bottom bar is EN AC-46400 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 510
77 to 120
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 2070
170 to 310

Thermal Properties

Latent Heat of Fusion, J/g 280
520
Maximum Temperature: Mechanical, °C 410
170
Melting Completion (Liquidus), °C 1430
610
Melting Onset (Solidus), °C 1390
570
Specific Heat Capacity, J/kg-K 480
890
Thermal Conductivity, W/m-K 46
130
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
33
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
110

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
9.5
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 1.5
7.8
Embodied Energy, MJ/kg 20
150
Embodied Water, L/kg 47
1070

Common Calculations

Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 25
52
Strength to Weight: Axial, points 24 to 75
18 to 32
Strength to Weight: Bending, points 22 to 47
26 to 38
Thermal Diffusivity, mm2/s 12
55
Thermal Shock Resistance, points 20 to 63
7.8 to 14

Alloy Composition

Aluminum (Al), % 0
85.4 to 90.5
Carbon (C), % 0.57 to 0.65
0
Chromium (Cr), % 0.2 to 0.45
0
Copper (Cu), % 0
0.8 to 1.3
Iron (Fe), % 95.9 to 96.9
0 to 0.8
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0
0.25 to 0.65
Manganese (Mn), % 0.7 to 1.0
0.15 to 0.55
Nickel (Ni), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 1.6 to 2.0
8.3 to 9.7
Sulfur (S), % 0 to 0.025
0
Tin (Sn), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.8
Residuals, % 0
0 to 0.25