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EN 1.7386 Steel vs. EN AC-45500 Aluminum

EN 1.7386 steel belongs to the iron alloys classification, while EN AC-45500 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 1.7386 steel and the bottom bar is EN AC-45500 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 200
110
Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 18 to 21
2.8
Fatigue Strength, MPa 170 to 290
80
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 75
26
Tensile Strength: Ultimate (UTS), MPa 550 to 670
320
Tensile Strength: Yield (Proof), MPa 240 to 440
250

Thermal Properties

Latent Heat of Fusion, J/g 270
500
Maximum Temperature: Mechanical, °C 600
170
Melting Completion (Liquidus), °C 1450
610
Melting Onset (Solidus), °C 1410
600
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 26
150
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
33
Electrical Conductivity: Equal Weight (Specific), % IACS 10
110

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
9.5
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 2.0
8.0
Embodied Energy, MJ/kg 28
150
Embodied Water, L/kg 88
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92 to 110
8.2
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 490
430
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
53
Strength to Weight: Axial, points 20 to 24
34
Strength to Weight: Bending, points 19 to 22
40
Thermal Diffusivity, mm2/s 6.9
65
Thermal Shock Resistance, points 15 to 18
15

Alloy Composition

Aluminum (Al), % 0 to 0.040
90.6 to 93.1
Carbon (C), % 0.080 to 0.15
0
Chromium (Cr), % 8.0 to 10
0
Copper (Cu), % 0 to 0.3
0.2 to 0.7
Iron (Fe), % 86.8 to 90.5
0 to 0.25
Magnesium (Mg), % 0
0.2 to 0.45
Manganese (Mn), % 0.3 to 0.6
0 to 0.15
Molybdenum (Mo), % 0.9 to 1.1
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.25 to 1.0
6.5 to 7.5
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.070
Residuals, % 0
0 to 0.1