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EN AC-71100 Aluminum vs. Grade FDSiCr Steel

EN AC-71100 aluminum belongs to the aluminum alloys classification, while grade FDSiCr steel belongs to the iron alloys. There are 23 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 EN AC-71100 aluminum and the bottom bar is grade FDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
580
Elastic (Young's, Tensile) Modulus, GPa 72
190
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
80
Tensile Strength: Ultimate (UTS), MPa 260
1930

Thermal Properties

Latent Heat of Fusion, J/g 490
270
Maximum Temperature: Mechanical, °C 170
410
Melting Completion (Liquidus), °C 580
1440
Melting Onset (Solidus), °C 520
1400
Specific Heat Capacity, J/kg-K 860
480
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 97
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
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 47
25
Strength to Weight: Axial, points 25
69
Strength to Weight: Bending, points 31
44
Thermal Shock Resistance, points 12
58

Alloy Composition

Aluminum (Al), % 78.7 to 83.3
0
Carbon (C), % 0
0.5 to 0.6
Chromium (Cr), % 0
0.5 to 0.8
Copper (Cu), % 0 to 0.1
0 to 0.12
Iron (Fe), % 0 to 0.3
96.5 to 97.8
Magnesium (Mg), % 0.2 to 0.5
0
Manganese (Mn), % 0 to 0.15
0.5 to 0.9
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 7.5 to 9.5
1.2 to 1.6
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 9.0 to 10.5
0
Residuals, % 0 to 0.15
0