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EN 1.7366 Steel vs. 4004 Aluminum

EN 1.7366 steel belongs to the iron alloys classification, while 4004 aluminum belongs to the aluminum 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 EN 1.7366 steel and the bottom bar is 4004 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 17 to 19
2.4
Fatigue Strength, MPa 160 to 320
42
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 74
27
Shear Strength, MPa 290 to 440
63
Tensile Strength: Ultimate (UTS), MPa 460 to 710
110
Tensile Strength: Yield (Proof), MPa 230 to 480
60

Thermal Properties

Latent Heat of Fusion, J/g 260
540
Maximum Temperature: Mechanical, °C 510
160
Melting Completion (Liquidus), °C 1460
600
Melting Onset (Solidus), °C 1420
560
Specific Heat Capacity, J/kg-K 470
910
Thermal Conductivity, W/m-K 40
130
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
33
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
120

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
9.5
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 1.7
8.0
Embodied Energy, MJ/kg 23
150
Embodied Water, L/kg 69
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 74 to 110
2.3
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 600
25
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
54
Strength to Weight: Axial, points 16 to 25
12
Strength to Weight: Bending, points 17 to 23
20
Thermal Diffusivity, mm2/s 11
58
Thermal Shock Resistance, points 13 to 20
5.1

Alloy Composition

Aluminum (Al), % 0
86 to 90
Carbon (C), % 0 to 0.18
0
Chromium (Cr), % 4.0 to 6.0
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 91.9 to 95.3
0 to 0.8
Magnesium (Mg), % 0
1.0 to 2.0
Manganese (Mn), % 0.3 to 0.8
0 to 0.1
Molybdenum (Mo), % 0.45 to 0.65
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.4
9.0 to 10.5
Sulfur (S), % 0 to 0.015
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15