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EN 1.8522 Steel vs. 707.0 Aluminum

EN 1.8522 steel belongs to the iron alloys classification, while 707.0 aluminum belongs to the aluminum alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, 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 1.8522 steel and the bottom bar is 707.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 74
26
Tensile Strength: Ultimate (UTS), MPa 730 to 1250
270 to 300

Thermal Properties

Latent Heat of Fusion, J/g 260
380
Maximum Temperature: Mechanical, °C 470
180
Melting Completion (Liquidus), °C 1460
630
Melting Onset (Solidus), °C 1420
600
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 39
150
Thermal Expansion, µm/m-K 13
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
37
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
110

Otherwise Unclassified Properties

Base Metal Price, % relative 4.2
9.5
Density, g/cm3 7.8
2.9
Embodied Carbon, kg CO2/kg material 2.2
8.3
Embodied Energy, MJ/kg 31
150
Embodied Water, L/kg 63
1140

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
47
Strength to Weight: Axial, points 26 to 44
26 to 29
Strength to Weight: Bending, points 23 to 33
32 to 34
Thermal Diffusivity, mm2/s 11
58
Thermal Shock Resistance, points 21 to 36
12 to 13

Alloy Composition

Aluminum (Al), % 0
90.5 to 93.6
Carbon (C), % 0.29 to 0.36
0
Chromium (Cr), % 2.8 to 3.3
0.2 to 0.4
Copper (Cu), % 0 to 0.1
0 to 0.2
Iron (Fe), % 93.7 to 96
0 to 0.8
Magnesium (Mg), % 0
1.8 to 2.4
Manganese (Mn), % 0.4 to 0.7
0.4 to 0.6
Molybdenum (Mo), % 0.7 to 1.2
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.4
0 to 0.2
Sulfur (S), % 0 to 0.035
0
Titanium (Ti), % 0
0 to 0.25
Vanadium (V), % 0.15 to 0.25
0
Zinc (Zn), % 0
4.0 to 4.5
Residuals, % 0
0 to 0.15