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Grade FDSiCrV Steel vs. 851.0 Aluminum

Grade FDSiCrV steel belongs to the iron alloys classification, while 851.0 aluminum belongs to the aluminum alloys. There are 24 material properties with values for both materials. Properties with values for just one material (4, 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 851.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
69
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 80
26
Tensile Strength: Ultimate (UTS), MPa 2100
130 to 140

Thermal Properties

Latent Heat of Fusion, J/g 270
410
Maximum Temperature: Mechanical, °C 420
180
Melting Completion (Liquidus), °C 1440
630
Melting Onset (Solidus), °C 1400
360
Specific Heat Capacity, J/kg-K 480
850
Thermal Conductivity, W/m-K 47
180
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
46
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
140

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
14
Density, g/cm3 7.7
3.1
Embodied Carbon, kg CO2/kg material 1.9
8.4
Embodied Energy, MJ/kg 26
160
Embodied Water, L/kg 50
1140

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
45
Strength to Weight: Axial, points 75
12 to 13
Strength to Weight: Bending, points 47
19 to 20
Thermal Diffusivity, mm2/s 13
69
Thermal Shock Resistance, points 63
6.1 to 6.3

Alloy Composition

Aluminum (Al), % 0
86.6 to 91.5
Carbon (C), % 0.5 to 0.7
0
Chromium (Cr), % 0.5 to 1.0
0
Copper (Cu), % 0 to 0.12
0.7 to 1.3
Iron (Fe), % 96 to 97.8
0 to 0.7
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0.4 to 0.9
0 to 0.1
Nickel (Ni), % 0
0.3 to 0.7
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 1.2 to 1.7
2.0 to 3.0
Sulfur (S), % 0 to 0.025
0
Tin (Sn), % 0
5.5 to 7.0
Titanium (Ti), % 0
0 to 0.2
Vanadium (V), % 0.1 to 0.25
0
Residuals, % 0
0 to 0.3