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EN 1.7117 Steel vs. 358.0 Aluminum

EN 1.7117 steel belongs to the iron alloys classification, while 358.0 aluminum belongs to the aluminum alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, 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 358.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

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 660 to 1930
350 to 370

Thermal Properties

Latent Heat of Fusion, J/g 270
520
Maximum Temperature: Mechanical, °C 420
170
Melting Completion (Liquidus), °C 1440
600
Melting Onset (Solidus), °C 1400
560
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 43
150
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
36
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
130

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
19
Density, g/cm3 7.7
2.6
Embodied Carbon, kg CO2/kg material 1.5
8.7
Embodied Energy, MJ/kg 21
160
Embodied Water, L/kg 51
1090

Common Calculations

Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 25
53
Strength to Weight: Axial, points 24 to 69
37 to 39
Strength to Weight: Bending, points 22 to 44
42 to 44
Thermal Diffusivity, mm2/s 12
63
Thermal Shock Resistance, points 20 to 58
16 to 17

Alloy Composition

Aluminum (Al), % 0
89.1 to 91.8
Beryllium (Be), % 0
0.1 to 0.3
Carbon (C), % 0.49 to 0.56
0
Chromium (Cr), % 0.7 to 1.0
0 to 0.2
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 95.2 to 96.4
0 to 0.3
Magnesium (Mg), % 0
0.4 to 0.6
Manganese (Mn), % 0.7 to 1.0
0 to 0.2
Nickel (Ni), % 0.5 to 0.7
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 1.2 to 1.5
7.6 to 8.6
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0.1 to 0.2
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15