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7010 Aluminum vs. Grade FDSiCr Steel

7010 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 7010 aluminum and the bottom bar is grade FDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 26
80
Tensile Strength: Ultimate (UTS), MPa 520 to 590
1930

Thermal Properties

Latent Heat of Fusion, J/g 380
270
Maximum Temperature: Mechanical, °C 200
410
Melting Completion (Liquidus), °C 630
1440
Melting Onset (Solidus), °C 480
1400
Specific Heat Capacity, J/kg-K 860
480
Thermal Conductivity, W/m-K 150
48
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
2.2
Density, g/cm3 3.0
7.7
Embodied Carbon, kg CO2/kg material 8.3
1.5
Embodied Energy, MJ/kg 150
20
Embodied Water, L/kg 1120
48

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
25
Strength to Weight: Axial, points 47 to 54
69
Strength to Weight: Bending, points 47 to 52
44
Thermal Diffusivity, mm2/s 58
13
Thermal Shock Resistance, points 22 to 26
58

Alloy Composition

Aluminum (Al), % 87.9 to 90.6
0
Carbon (C), % 0
0.5 to 0.6
Chromium (Cr), % 0 to 0.050
0.5 to 0.8
Copper (Cu), % 1.5 to 2.0
0 to 0.12
Iron (Fe), % 0 to 0.15
96.5 to 97.8
Magnesium (Mg), % 2.1 to 2.6
0
Manganese (Mn), % 0 to 0.1
0.5 to 0.9
Nickel (Ni), % 0 to 0.050
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.12
1.2 to 1.6
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.060
0
Zinc (Zn), % 5.7 to 6.7
0
Zirconium (Zr), % 0.1 to 0.16
0
Residuals, % 0 to 0.15
0