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Grade FDSiCr Steel vs. SAE-AISI L6 Steel

Both grade FDSiCr steel and SAE-AISI L6 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade FDSiCr steel and the bottom bar is SAE-AISI L6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
72
Tensile Strength: Ultimate (UTS), MPa 1930
670 to 2090

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 48
42
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
3.6
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.5
2.0
Embodied Energy, MJ/kg 20
28
Embodied Water, L/kg 48
54

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 69
24 to 74
Strength to Weight: Bending, points 44
22 to 46
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 58
22 to 70

Alloy Composition

Carbon (C), % 0.5 to 0.6
0.65 to 0.75
Chromium (Cr), % 0.5 to 0.8
0.6 to 1.2
Copper (Cu), % 0 to 0.12
0 to 0.25
Iron (Fe), % 96.5 to 97.8
93.6 to 97.3
Manganese (Mn), % 0.5 to 0.9
0.25 to 0.8
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
1.3 to 2.0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 1.2 to 1.6
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.030
Vanadium (V), % 0
0 to 0.3