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Grade FDSiCr Steel vs. EN AC-44500 Aluminum

Grade FDSiCr steel belongs to the iron alloys classification, while EN AC-44500 aluminum belongs to the aluminum alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, 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 grade FDSiCr steel and the bottom bar is EN AC-44500 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 580
68
Elastic (Young's, Tensile) Modulus, GPa 190
72
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 80
27
Tensile Strength: Ultimate (UTS), MPa 1930
270

Thermal Properties

Latent Heat of Fusion, J/g 270
570
Maximum Temperature: Mechanical, °C 410
170
Melting Completion (Liquidus), °C 1440
590
Melting Onset (Solidus), °C 1400
580
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 48
130
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
33
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
120

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
9.5
Density, g/cm3 7.7
2.5
Embodied Carbon, kg CO2/kg material 1.5
7.7
Embodied Energy, MJ/kg 20
140
Embodied Water, L/kg 48
1050

Common Calculations

Stiffness to Weight: Axial, points 13
16
Stiffness to Weight: Bending, points 25
55
Strength to Weight: Axial, points 69
29
Strength to Weight: Bending, points 44
36
Thermal Diffusivity, mm2/s 13
57
Thermal Shock Resistance, points 58
13

Alloy Composition

Aluminum (Al), % 0
83.7 to 89.5
Carbon (C), % 0.5 to 0.6
0
Chromium (Cr), % 0.5 to 0.8
0
Copper (Cu), % 0 to 0.12
0 to 0.2
Iron (Fe), % 96.5 to 97.8
0 to 1.0
Magnesium (Mg), % 0
0 to 0.4
Manganese (Mn), % 0.5 to 0.9
0 to 0.55
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 1.2 to 1.6
10.5 to 13.5
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.3
Residuals, % 0
0 to 0.25