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EN 1.7117 Steel vs. EN AC-43500 Aluminum

EN 1.7117 steel belongs to the iron alloys classification, while EN AC-43500 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 1.7117 steel and the bottom bar is EN AC-43500 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 480
68 to 91
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 660 to 1930
220 to 300

Thermal Properties

Latent Heat of Fusion, J/g 270
550
Maximum Temperature: Mechanical, °C 420
170
Melting Completion (Liquidus), °C 1440
600
Melting Onset (Solidus), °C 1400
590
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 43
140
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
38
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
130

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
9.5
Density, g/cm3 7.7
2.6
Embodied Carbon, kg CO2/kg material 1.5
7.8
Embodied Energy, MJ/kg 21
150
Embodied Water, L/kg 51
1070

Common Calculations

Stiffness to Weight: Axial, points 13
16
Stiffness to Weight: Bending, points 25
54
Strength to Weight: Axial, points 24 to 69
24 to 33
Strength to Weight: Bending, points 22 to 44
32 to 39
Thermal Diffusivity, mm2/s 12
60
Thermal Shock Resistance, points 20 to 58
10 to 14

Alloy Composition

Aluminum (Al), % 0
86.4 to 90.5
Carbon (C), % 0.49 to 0.56
0
Chromium (Cr), % 0.7 to 1.0
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 95.2 to 96.4
0 to 0.25
Magnesium (Mg), % 0
0.1 to 0.6
Manganese (Mn), % 0.7 to 1.0
0.4 to 0.8
Nickel (Ni), % 0.5 to 0.7
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 1.2 to 1.5
9.0 to 11.5
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.070
Residuals, % 0
0 to 0.15