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A390.0 Aluminum vs. EN 1.5805 Steel

A390.0 aluminum belongs to the aluminum alloys classification, while EN 1.5805 steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (5, 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 A390.0 aluminum and the bottom bar is EN 1.5805 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 140
140 to 170
Elastic (Young's, Tensile) Modulus, GPa 75
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
73
Tensile Strength: Ultimate (UTS), MPa 190 to 290
460 to 1180

Thermal Properties

Latent Heat of Fusion, J/g 640
250
Maximum Temperature: Mechanical, °C 170
430
Melting Completion (Liquidus), °C 580
1460
Melting Onset (Solidus), °C 480
1420
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 130
40
Thermal Expansion, µm/m-K 20
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 67
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 11
3.1
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 7.3
1.6
Embodied Energy, MJ/kg 140
21
Embodied Water, L/kg 950
53

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 52
24
Strength to Weight: Axial, points 19 to 30
16 to 42
Strength to Weight: Bending, points 27 to 36
17 to 32
Thermal Diffusivity, mm2/s 56
11
Thermal Shock Resistance, points 9.0 to 14
13 to 35

Alloy Composition

Aluminum (Al), % 75.3 to 79.6
0
Carbon (C), % 0
0.070 to 0.12
Chromium (Cr), % 0
0.9 to 1.2
Copper (Cu), % 4.0 to 5.0
0 to 0.25
Iron (Fe), % 0 to 0.5
95.7 to 97.2
Magnesium (Mg), % 0.45 to 0.65
0
Manganese (Mn), % 0 to 0.1
0.6 to 0.9
Nickel (Ni), % 0
1.2 to 1.5
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 16 to 18
0 to 0.3
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.2
0