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Grade FDSiCrV Steel vs. 6063 Aluminum

Grade FDSiCrV steel belongs to the iron alloys classification, while 6063 aluminum belongs to the aluminum 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 grade FDSiCrV steel and the bottom bar is 6063 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 630
25 to 95
Elastic (Young's, Tensile) Modulus, GPa 190
68
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 80
26
Tensile Strength: Ultimate (UTS), MPa 2100
110 to 300

Thermal Properties

Latent Heat of Fusion, J/g 270
400
Maximum Temperature: Mechanical, °C 420
160
Melting Completion (Liquidus), °C 1440
650
Melting Onset (Solidus), °C 1400
620
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 47
190 to 220
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
49 to 58
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
160 to 190

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
9.5
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 1.9
8.3
Embodied Energy, MJ/kg 26
150
Embodied Water, L/kg 50
1190

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 75
11 to 31
Strength to Weight: Bending, points 47
18 to 37
Thermal Diffusivity, mm2/s 13
79 to 89
Thermal Shock Resistance, points 63
4.8 to 13

Alloy Composition

Aluminum (Al), % 0
97.5 to 99.4
Carbon (C), % 0.5 to 0.7
0
Chromium (Cr), % 0.5 to 1.0
0 to 0.1
Copper (Cu), % 0 to 0.12
0 to 0.1
Iron (Fe), % 96 to 97.8
0 to 0.35
Magnesium (Mg), % 0
0.45 to 0.9
Manganese (Mn), % 0.4 to 0.9
0 to 0.1
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 1.2 to 1.7
0.2 to 0.6
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.1
Vanadium (V), % 0.1 to 0.25
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15