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EN 1.7225 Steel vs. 5026 Aluminum

EN 1.7225 steel belongs to the iron alloys classification, while 5026 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 1.7225 steel and the bottom bar is 5026 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 73
26
Tensile Strength: Ultimate (UTS), MPa 540 to 1850
260 to 320

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Maximum Temperature: Mechanical, °C 420
210
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1420
510
Specific Heat Capacity, J/kg-K 470
890
Thermal Conductivity, W/m-K 46
130
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
31
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
99

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
9.5
Density, g/cm3 7.8
2.8
Embodied Carbon, kg CO2/kg material 1.5
8.9
Embodied Energy, MJ/kg 20
150
Embodied Water, L/kg 51
1150

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
49
Strength to Weight: Axial, points 19 to 65
26 to 32
Strength to Weight: Bending, points 19 to 43
33 to 37
Thermal Diffusivity, mm2/s 12
52
Thermal Shock Resistance, points 16 to 54
11 to 14

Alloy Composition

Aluminum (Al), % 0
88.2 to 94.7
Carbon (C), % 0.38 to 0.45
0
Chromium (Cr), % 0.9 to 1.2
0 to 0.3
Copper (Cu), % 0 to 0.25
0.1 to 0.8
Iron (Fe), % 96.6 to 98
0.2 to 1.0
Magnesium (Mg), % 0
3.9 to 4.9
Manganese (Mn), % 0.6 to 0.9
0.6 to 1.8
Molybdenum (Mo), % 0.15 to 0.3
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.4
0.55 to 1.4
Sulfur (S), % 0 to 0.035
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 1.0
Zirconium (Zr), % 0
0 to 0.3
Residuals, % 0
0 to 0.15

Comparable Variants