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328.0 Aluminum vs. Grade FDSiCr Steel

328.0 aluminum belongs to the aluminum alloys classification, while grade FDSiCr steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, 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 grade FDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60 to 82
580
Elastic (Young's, Tensile) Modulus, GPa 72
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
80
Tensile Strength: Ultimate (UTS), MPa 200 to 270
1930

Thermal Properties

Latent Heat of Fusion, J/g 510
270
Maximum Temperature: Mechanical, °C 180
410
Melting Completion (Liquidus), °C 620
1440
Melting Onset (Solidus), °C 560
1400
Specific Heat Capacity, J/kg-K 890
480
Thermal Conductivity, W/m-K 120
48
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 99
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
2.2
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 7.8
1.5
Embodied Energy, MJ/kg 140
20
Embodied Water, L/kg 1070
48

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 21 to 28
69
Strength to Weight: Bending, points 28 to 34
44
Thermal Diffusivity, mm2/s 50
13
Thermal Shock Resistance, points 9.2 to 12
58

Alloy Composition

Aluminum (Al), % 84.5 to 91.1
0
Carbon (C), % 0
0.5 to 0.6
Chromium (Cr), % 0 to 0.35
0.5 to 0.8
Copper (Cu), % 1.0 to 2.0
0 to 0.12
Iron (Fe), % 0 to 1.0
96.5 to 97.8
Magnesium (Mg), % 0.2 to 0.6
0
Manganese (Mn), % 0.2 to 0.6
0.5 to 0.9
Nickel (Ni), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 7.5 to 8.5
1.2 to 1.6
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 1.5
0
Residuals, % 0 to 0.5
0