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Grade FDSiCrV Steel vs. 4015 Aluminum

Grade FDSiCrV steel belongs to the iron alloys classification, while 4015 aluminum belongs to the aluminum alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, 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 4015 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 630
35 to 70
Elastic (Young's, Tensile) Modulus, GPa 190
70
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 80
26
Tensile Strength: Ultimate (UTS), MPa 2100
130 to 220

Thermal Properties

Latent Heat of Fusion, J/g 270
420
Maximum Temperature: Mechanical, °C 420
160
Melting Completion (Liquidus), °C 1440
640
Melting Onset (Solidus), °C 1400
600
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 47
160
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
41
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
130

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
8.1
Embodied Energy, MJ/kg 26
150
Embodied Water, L/kg 50
1160

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 75
13 to 22
Strength to Weight: Bending, points 47
21 to 30
Thermal Diffusivity, mm2/s 13
66
Thermal Shock Resistance, points 63
5.7 to 9.7

Alloy Composition

Aluminum (Al), % 0
94.9 to 97.9
Carbon (C), % 0.5 to 0.7
0
Chromium (Cr), % 0.5 to 1.0
0
Copper (Cu), % 0 to 0.12
0 to 0.2
Iron (Fe), % 96 to 97.8
0 to 0.7
Magnesium (Mg), % 0
0.1 to 0.5
Manganese (Mn), % 0.4 to 0.9
0.6 to 1.2
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 1.2 to 1.7
1.4 to 2.2
Sulfur (S), % 0 to 0.025
0
Vanadium (V), % 0.1 to 0.25
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15