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Grade FDSiCrV Steel vs. 238.0 Aluminum

Grade FDSiCrV steel belongs to the iron alloys classification, while 238.0 aluminum belongs to the aluminum alloys. There are 24 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 238.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
76
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 80
28
Tensile Strength: Ultimate (UTS), MPa 2100
210

Thermal Properties

Latent Heat of Fusion, J/g 270
430
Maximum Temperature: Mechanical, °C 420
170
Melting Completion (Liquidus), °C 1440
600
Melting Onset (Solidus), °C 1400
510
Specific Heat Capacity, J/kg-K 480
840
Thermal Conductivity, W/m-K 47
100
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
25
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
67

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
12
Density, g/cm3 7.7
3.4
Embodied Carbon, kg CO2/kg material 1.9
7.4
Embodied Energy, MJ/kg 26
140
Embodied Water, L/kg 50
1040

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 25
42
Strength to Weight: Axial, points 75
17
Strength to Weight: Bending, points 47
23
Thermal Diffusivity, mm2/s 13
37
Thermal Shock Resistance, points 63
9.1

Alloy Composition

Aluminum (Al), % 0
81.9 to 84.9
Carbon (C), % 0.5 to 0.7
0
Chromium (Cr), % 0.5 to 1.0
0
Copper (Cu), % 0 to 0.12
9.5 to 10.5
Iron (Fe), % 96 to 97.8
1.0 to 1.5
Magnesium (Mg), % 0
0 to 0.25
Manganese (Mn), % 0.4 to 0.9
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 1.2 to 1.7
3.6 to 4.4
Sulfur (S), % 0 to 0.025
0
Vanadium (V), % 0.1 to 0.25
0
Zinc (Zn), % 0
1.0 to 1.5