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392.0 Aluminum vs. EN 1.6781 Steel

392.0 aluminum belongs to the aluminum alloys classification, while EN 1.6781 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 392.0 aluminum and the bottom bar is EN 1.6781 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
190
Elongation at Break, % 0.86
17
Fatigue Strength, MPa 190
450
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
73
Tensile Strength: Ultimate (UTS), MPa 290
830
Tensile Strength: Yield (Proof), MPa 270
680

Thermal Properties

Latent Heat of Fusion, J/g 670
260
Maximum Temperature: Mechanical, °C 170
450
Melting Completion (Liquidus), °C 670
1460
Melting Onset (Solidus), °C 580
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 130
44
Thermal Expansion, µm/m-K 19
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 90
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 10
5.0
Density, g/cm3 2.5
7.9
Embodied Carbon, kg CO2/kg material 7.5
1.9
Embodied Energy, MJ/kg 140
25
Embodied Water, L/kg 950
60

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.4
130
Resilience: Unit (Modulus of Resilience), kJ/m3 490
1220
Stiffness to Weight: Axial, points 17
13
Stiffness to Weight: Bending, points 56
24
Strength to Weight: Axial, points 32
29
Strength to Weight: Bending, points 39
25
Thermal Diffusivity, mm2/s 60
12
Thermal Shock Resistance, points 15
24

Alloy Composition

Aluminum (Al), % 73.9 to 80.6
0
Carbon (C), % 0
0.15 to 0.19
Chromium (Cr), % 0
1.3 to 1.8
Copper (Cu), % 0.4 to 0.8
0
Iron (Fe), % 0 to 1.5
92.6 to 94.6
Magnesium (Mg), % 0.8 to 1.2
0
Manganese (Mn), % 0.2 to 0.6
0.55 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.6
Nickel (Ni), % 0 to 0.5
3.0 to 3.5
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 18 to 20
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0 to 0.3
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.5
0