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5040 Aluminum vs. EN 1.7729 Steel

5040 aluminum belongs to the aluminum alloys classification, while EN 1.7729 steel belongs to the iron alloys. There are 31 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 5040 aluminum and the bottom bar is EN 1.7729 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 66 to 74
270
Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 5.7 to 6.8
17
Fatigue Strength, MPa 100 to 130
500
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 140 to 150
560
Tensile Strength: Ultimate (UTS), MPa 240 to 260
910
Tensile Strength: Yield (Proof), MPa 190 to 230
750

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 190
430
Melting Completion (Liquidus), °C 650
1470
Melting Onset (Solidus), °C 600
1430
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 160
40
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
3.8
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 8.3
3.3
Embodied Energy, MJ/kg 150
49
Embodied Water, L/kg 1180
59

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14 to 15
150
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 380
1500
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 24 to 26
32
Strength to Weight: Bending, points 31 to 32
27
Thermal Diffusivity, mm2/s 64
11
Thermal Shock Resistance, points 10 to 11
27

Alloy Composition

Aluminum (Al), % 95.2 to 98
0.015 to 0.080
Arsenic (As), % 0
0 to 0.020
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0
0.17 to 0.23
Chromium (Cr), % 0.1 to 0.3
0.9 to 1.2
Copper (Cu), % 0 to 0.25
0 to 0.2
Iron (Fe), % 0 to 0.7
94.8 to 97
Magnesium (Mg), % 1.0 to 1.5
0
Manganese (Mn), % 0.9 to 1.4
0.35 to 0.75
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0
0 to 0.2
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.3
0 to 0.4
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0
0 to 0.020
Titanium (Ti), % 0
0.070 to 0.15
Vanadium (V), % 0
0.6 to 0.8
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0