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EN 1.7117 Steel vs. 295.0 Aluminum

EN 1.7117 steel belongs to the iron alloys classification, while 295.0 aluminum belongs to the aluminum alloys. There are 25 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 295.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 480
60 to 93
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
230 to 280

Thermal Properties

Latent Heat of Fusion, J/g 270
400
Maximum Temperature: Mechanical, °C 420
170
Melting Completion (Liquidus), °C 1440
640
Melting Onset (Solidus), °C 1400
530
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 43
140
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
35
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
100

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
10
Density, g/cm3 7.7
3.0
Embodied Carbon, kg CO2/kg material 1.5
7.9
Embodied Energy, MJ/kg 21
150
Embodied Water, L/kg 51
1140

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 24 to 69
21 to 26
Strength to Weight: Bending, points 22 to 44
27 to 32
Thermal Diffusivity, mm2/s 12
54
Thermal Shock Resistance, points 20 to 58
9.8 to 12

Alloy Composition

Aluminum (Al), % 0
91.4 to 95.3
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 1.0
Magnesium (Mg), % 0
0 to 0.030
Manganese (Mn), % 0.7 to 1.0
0 to 0.35
Nickel (Ni), % 0.5 to 0.7
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 1.2 to 1.5
0.7 to 1.5
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.35
Residuals, % 0
0 to 0.15