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EN 1.7386 Steel vs. EN AC-45000 Aluminum

EN 1.7386 steel belongs to the iron alloys classification, while EN AC-45000 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-45000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 200
77
Elastic (Young's, Tensile) Modulus, GPa 190
73
Elongation at Break, % 18 to 21
1.1
Fatigue Strength, MPa 170 to 290
75
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 75
27
Tensile Strength: Ultimate (UTS), MPa 550 to 670
180
Tensile Strength: Yield (Proof), MPa 240 to 440
110

Thermal Properties

Latent Heat of Fusion, J/g 270
470
Maximum Temperature: Mechanical, °C 600
180
Melting Completion (Liquidus), °C 1450
640
Melting Onset (Solidus), °C 1410
520
Specific Heat Capacity, J/kg-K 480
870
Thermal Conductivity, W/m-K 26
120
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
27
Electrical Conductivity: Equal Weight (Specific), % IACS 10
81

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
11
Density, g/cm3 7.8
3.0
Embodied Carbon, kg CO2/kg material 2.0
7.7
Embodied Energy, MJ/kg 28
140
Embodied Water, L/kg 88
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92 to 110
1.7
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 490
80
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
47
Strength to Weight: Axial, points 20 to 24
17
Strength to Weight: Bending, points 19 to 22
24
Thermal Diffusivity, mm2/s 6.9
47
Thermal Shock Resistance, points 15 to 18
8.0

Alloy Composition

Aluminum (Al), % 0 to 0.040
82.2 to 91.8
Carbon (C), % 0.080 to 0.15
0
Chromium (Cr), % 8.0 to 10
0 to 0.15
Copper (Cu), % 0 to 0.3
3.0 to 5.0
Iron (Fe), % 86.8 to 90.5
0 to 1.0
Lead (Pb), % 0
0 to 0.3
Magnesium (Mg), % 0
0 to 0.55
Manganese (Mn), % 0.3 to 0.6
0.2 to 0.65
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0
0 to 0.45
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.25 to 1.0
5.0 to 7.0
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
0 to 0.15
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 2.0
Residuals, % 0
0 to 0.35