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384.0 Aluminum vs. Grade FDSiCr Steel

384.0 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 384.0 aluminum and the bottom bar is grade FDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
580
Elastic (Young's, Tensile) Modulus, GPa 74
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
80
Tensile Strength: Ultimate (UTS), MPa 330
1930

Thermal Properties

Latent Heat of Fusion, J/g 550
270
Maximum Temperature: Mechanical, °C 170
410
Melting Completion (Liquidus), °C 580
1440
Melting Onset (Solidus), °C 530
1400
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 96
48
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 69
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.2
Density, g/cm3 2.9
7.7
Embodied Carbon, kg CO2/kg material 7.4
1.5
Embodied Energy, MJ/kg 140
20
Embodied Water, L/kg 1010
48

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
25
Strength to Weight: Axial, points 32
69
Strength to Weight: Bending, points 37
44
Thermal Diffusivity, mm2/s 39
13
Thermal Shock Resistance, points 15
58

Alloy Composition

Aluminum (Al), % 77.3 to 86.5
0
Carbon (C), % 0
0.5 to 0.6
Chromium (Cr), % 0
0.5 to 0.8
Copper (Cu), % 3.0 to 4.5
0 to 0.12
Iron (Fe), % 0 to 1.3
96.5 to 97.8
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0.5 to 0.9
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 10.5 to 12
1.2 to 1.6
Sulfur (S), % 0
0 to 0.025
Tin (Sn), % 0 to 0.35
0
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0