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712.0 Aluminum vs. Grade FDSiCr Steel

712.0 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 (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 712.0 aluminum and the bottom bar is grade FDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75 to 90
580
Elastic (Young's, Tensile) Modulus, GPa 70
190
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
80
Tensile Strength: Ultimate (UTS), MPa 250 to 260
1930

Thermal Properties

Latent Heat of Fusion, J/g 380
270
Maximum Temperature: Mechanical, °C 190
410
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 610
1400
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 160
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 9.5
2.2
Density, g/cm3 3.0
7.7
Embodied Carbon, kg CO2/kg material 8.0
1.5
Embodied Energy, MJ/kg 150
20
Embodied Water, L/kg 1140
48

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 24 to 25
69
Strength to Weight: Bending, points 30 to 31
44
Thermal Diffusivity, mm2/s 62
13
Thermal Shock Resistance, points 11
58

Alloy Composition

Aluminum (Al), % 90.7 to 94
0
Carbon (C), % 0
0.5 to 0.6
Chromium (Cr), % 0.4 to 0.6
0.5 to 0.8
Copper (Cu), % 0 to 0.25
0 to 0.12
Iron (Fe), % 0 to 0.5
96.5 to 97.8
Magnesium (Mg), % 0.5 to 0.65
0
Manganese (Mn), % 0 to 0.1
0.5 to 0.9
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.3
1.2 to 1.6
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0.15 to 0.25
0
Zinc (Zn), % 5.0 to 6.5
0
Residuals, % 0 to 0.2
0