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EN 1.6773 Steel vs. 6025 Aluminum

EN 1.6773 steel belongs to the iron alloys classification, while 6025 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 1.6773 steel and the bottom bar is 6025 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 11
2.8 to 10
Fatigue Strength, MPa 560
67 to 110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Shear Strength, MPa 670
110 to 140
Tensile Strength: Ultimate (UTS), MPa 1120
190 to 240
Tensile Strength: Yield (Proof), MPa 910
68 to 210

Thermal Properties

Latent Heat of Fusion, J/g 250
410
Maximum Temperature: Mechanical, °C 450
160
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1420
550
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 46
130
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
33
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
110

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
9.5
Density, g/cm3 7.9
2.8
Embodied Carbon, kg CO2/kg material 1.9
8.5
Embodied Energy, MJ/kg 26
150
Embodied Water, L/kg 61
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
6.0 to 15
Resilience: Unit (Modulus of Resilience), kJ/m3 2210
33 to 310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 40
19 to 24
Strength to Weight: Bending, points 30
26 to 31
Thermal Diffusivity, mm2/s 12
54
Thermal Shock Resistance, points 33
8.2 to 10

Alloy Composition

Aluminum (Al), % 0
91.7 to 96.3
Carbon (C), % 0.32 to 0.39
0
Chromium (Cr), % 1.6 to 2.0
0 to 0.2
Copper (Cu), % 0
0.2 to 0.7
Iron (Fe), % 92 to 93.9
0 to 0.7
Magnesium (Mg), % 0
2.1 to 3.0
Manganese (Mn), % 0.3 to 0.6
0.6 to 1.4
Molybdenum (Mo), % 0.25 to 0.45
0
Nickel (Ni), % 3.6 to 4.1
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.4
0.8 to 1.5
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.15