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2007 Aluminum vs. Grade FDSiCr Steel

2007 aluminum belongs to the aluminum alloys classification, while grade FDSiCr steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, 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 2007 aluminum and the bottom bar is grade FDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
80
Tensile Strength: Ultimate (UTS), MPa 370 to 420
1930

Thermal Properties

Latent Heat of Fusion, J/g 390
270
Maximum Temperature: Mechanical, °C 190
410
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 510
1400
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 130
48
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.2
Density, g/cm3 3.1
7.7
Embodied Carbon, kg CO2/kg material 8.0
1.5
Embodied Energy, MJ/kg 150
20
Embodied Water, L/kg 1130
48

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 44
25
Strength to Weight: Axial, points 33 to 38
69
Strength to Weight: Bending, points 37 to 40
44
Thermal Diffusivity, mm2/s 48
13
Thermal Shock Resistance, points 16 to 19
58

Alloy Composition

Aluminum (Al), % 87.5 to 95
0
Bismuth (Bi), % 0 to 0.2
0
Carbon (C), % 0
0.5 to 0.6
Chromium (Cr), % 0 to 0.1
0.5 to 0.8
Copper (Cu), % 3.3 to 4.6
0 to 0.12
Iron (Fe), % 0 to 0.8
96.5 to 97.8
Lead (Pb), % 0.8 to 1.5
0
Magnesium (Mg), % 0.4 to 1.8
0
Manganese (Mn), % 0.5 to 1.0
0.5 to 0.9
Nickel (Ni), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.8
1.2 to 1.6
Sulfur (S), % 0
0 to 0.025
Tin (Sn), % 0 to 0.2
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.8
0
Residuals, % 0 to 0.3
0