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328.0 Aluminum vs. EN 1.7139 Steel

328.0 aluminum belongs to the aluminum alloys classification, while EN 1.7139 steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, 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 328.0 aluminum and the bottom bar is EN 1.7139 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60 to 82
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 72
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 200 to 270
480 to 1390

Thermal Properties

Latent Heat of Fusion, J/g 510
250
Maximum Temperature: Mechanical, °C 180
420
Melting Completion (Liquidus), °C 620
1460
Melting Onset (Solidus), °C 560
1420
Specific Heat Capacity, J/kg-K 890
470
Thermal Conductivity, W/m-K 120
44
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 99
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
2.2
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 7.8
1.4
Embodied Energy, MJ/kg 140
19
Embodied Water, L/kg 1070
51

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 51
24
Strength to Weight: Axial, points 21 to 28
17 to 49
Strength to Weight: Bending, points 28 to 34
17 to 35
Thermal Diffusivity, mm2/s 50
12
Thermal Shock Resistance, points 9.2 to 12
14 to 41

Alloy Composition

Aluminum (Al), % 84.5 to 91.1
0
Carbon (C), % 0
0.14 to 0.19
Chromium (Cr), % 0 to 0.35
0.8 to 1.1
Copper (Cu), % 1.0 to 2.0
0 to 0.25
Iron (Fe), % 0 to 1.0
96.8 to 98
Magnesium (Mg), % 0.2 to 0.6
0
Manganese (Mn), % 0.2 to 0.6
1.0 to 1.3
Nickel (Ni), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 7.5 to 8.5
0 to 0.3
Sulfur (S), % 0
0.020 to 0.040
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 1.5
0
Residuals, % 0 to 0.5
0