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EN 1.7117 Steel vs. A390.0 Aluminum

EN 1.7117 steel belongs to the iron alloys classification, while A390.0 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 1.7117 steel and the bottom bar is A390.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 480
110 to 140
Elastic (Young's, Tensile) Modulus, GPa 190
75
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
28
Tensile Strength: Ultimate (UTS), MPa 660 to 1930
190 to 290

Thermal Properties

Latent Heat of Fusion, J/g 270
640
Maximum Temperature: Mechanical, °C 420
170
Melting Completion (Liquidus), °C 1440
580
Melting Onset (Solidus), °C 1400
480
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 43
130
Thermal Expansion, µm/m-K 13
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
20
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
67

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
11
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 1.5
7.3
Embodied Energy, MJ/kg 21
140
Embodied Water, L/kg 51
950

Common Calculations

Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 25
52
Strength to Weight: Axial, points 24 to 69
19 to 30
Strength to Weight: Bending, points 22 to 44
27 to 36
Thermal Diffusivity, mm2/s 12
56
Thermal Shock Resistance, points 20 to 58
9.0 to 14

Alloy Composition

Aluminum (Al), % 0
75.3 to 79.6
Carbon (C), % 0.49 to 0.56
0
Chromium (Cr), % 0.7 to 1.0
0
Copper (Cu), % 0
4.0 to 5.0
Iron (Fe), % 95.2 to 96.4
0 to 0.5
Magnesium (Mg), % 0
0.45 to 0.65
Manganese (Mn), % 0.7 to 1.0
0 to 0.1
Nickel (Ni), % 0.5 to 0.7
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 1.2 to 1.5
16 to 18
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.2