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4047 Aluminum vs. EN 1.6511 Steel

4047 aluminum belongs to the aluminum alloys classification, while EN 1.6511 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 4047 aluminum and the bottom bar is EN 1.6511 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 3.4
12
Fatigue Strength, MPa 45
480
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Shear Strength, MPa 69
600
Tensile Strength: Ultimate (UTS), MPa 120
990
Tensile Strength: Yield (Proof), MPa 64
770

Thermal Properties

Latent Heat of Fusion, J/g 570
250
Maximum Temperature: Mechanical, °C 160
430
Melting Completion (Liquidus), °C 580
1460
Melting Onset (Solidus), °C 580
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 130
36
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
3.1
Density, g/cm3 2.5
7.8
Embodied Carbon, kg CO2/kg material 7.7
1.6
Embodied Energy, MJ/kg 140
21
Embodied Water, L/kg 1050
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.5
110
Resilience: Unit (Modulus of Resilience), kJ/m3 28
1590
Stiffness to Weight: Axial, points 16
13
Stiffness to Weight: Bending, points 55
24
Strength to Weight: Axial, points 13
35
Strength to Weight: Bending, points 21
28
Thermal Diffusivity, mm2/s 59
9.9
Thermal Shock Resistance, points 5.6
29

Alloy Composition

Aluminum (Al), % 85.3 to 89
0
Carbon (C), % 0
0.32 to 0.4
Chromium (Cr), % 0
0.9 to 1.2
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 0 to 0.8
95.6 to 97.2
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.15
0.5 to 0.8
Molybdenum (Mo), % 0
0.15 to 0.3
Nickel (Ni), % 0
0.9 to 1.2
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 11 to 13
0 to 0.4
Sulfur (S), % 0
0 to 0.035
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0