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4104 Aluminum vs. EN 1.5402 Steel

4104 aluminum belongs to the aluminum alloys classification, while EN 1.5402 steel belongs to the iron 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 4104 aluminum and the bottom bar is EN 1.5402 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 2.4
23
Fatigue Strength, MPa 42
260
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Shear Strength, MPa 63
370
Tensile Strength: Ultimate (UTS), MPa 110
580
Tensile Strength: Yield (Proof), MPa 60
370

Thermal Properties

Latent Heat of Fusion, J/g 540
250
Maximum Temperature: Mechanical, °C 160
410
Melting Completion (Liquidus), °C 600
1470
Melting Onset (Solidus), °C 560
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 130
51
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.4
Density, g/cm3 2.6
7.9
Embodied Carbon, kg CO2/kg material 8.0
1.7
Embodied Energy, MJ/kg 150
22
Embodied Water, L/kg 1080
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
120
Resilience: Unit (Modulus of Resilience), kJ/m3 25
360
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 54
24
Strength to Weight: Axial, points 12
21
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 58
14
Thermal Shock Resistance, points 5.1
17

Alloy Composition

Aluminum (Al), % 85.8 to 90
0
Bismuth (Bi), % 0.020 to 0.2
0
Carbon (C), % 0
0 to 0.18
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.8
97.3 to 98.7
Magnesium (Mg), % 1.0 to 2.0
0
Manganese (Mn), % 0 to 0.1
0.9 to 1.4
Molybdenum (Mo), % 0
0.4 to 0.6
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 9.0 to 10.5
0 to 0.4
Sulfur (S), % 0
0 to 0.015
Vanadium (V), % 0
0.040 to 0.080
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0