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Grade FDSiCrV Steel vs. 308.0 Aluminum

Grade FDSiCrV steel belongs to the iron alloys classification, while 308.0 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 308.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 630
70
Elastic (Young's, Tensile) Modulus, GPa 190
73
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 80
27
Tensile Strength: Ultimate (UTS), MPa 2100
190

Thermal Properties

Latent Heat of Fusion, J/g 270
470
Maximum Temperature: Mechanical, °C 420
170
Melting Completion (Liquidus), °C 1440
620
Melting Onset (Solidus), °C 1400
540
Specific Heat Capacity, J/kg-K 480
870
Thermal Conductivity, W/m-K 47
140
Thermal Expansion, µm/m-K 13
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
37
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
110

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
10
Density, g/cm3 7.7
2.9
Embodied Carbon, kg CO2/kg material 1.9
7.7
Embodied Energy, MJ/kg 26
140
Embodied Water, L/kg 50
1080

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
47
Strength to Weight: Axial, points 75
18
Strength to Weight: Bending, points 47
25
Thermal Diffusivity, mm2/s 13
55
Thermal Shock Resistance, points 63
9.2

Alloy Composition

Aluminum (Al), % 0
85.7 to 91
Carbon (C), % 0.5 to 0.7
0
Chromium (Cr), % 0.5 to 1.0
0
Copper (Cu), % 0 to 0.12
4.0 to 5.0
Iron (Fe), % 96 to 97.8
0 to 1.0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0.4 to 0.9
0 to 0.5
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 1.2 to 1.7
5.0 to 6.0
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.25
Vanadium (V), % 0.1 to 0.25
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5