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Grade FDSiCrV Steel vs. SAE-AISI 1018 Steel

Both grade FDSiCrV steel and SAE-AISI 1018 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is grade FDSiCrV steel and the bottom bar is SAE-AISI 1018 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 630
130 to 140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Reduction in Area, % 42
45 to 57
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 2100
430 to 480

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 420
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 47
52
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
1.8
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 1.9
1.4
Embodied Energy, MJ/kg 26
18
Embodied Water, L/kg 50
46

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 75
15 to 17
Strength to Weight: Bending, points 47
16 to 17
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 63
14 to 15

Alloy Composition

Carbon (C), % 0.5 to 0.7
0.15 to 0.2
Chromium (Cr), % 0.5 to 1.0
0
Copper (Cu), % 0 to 0.12
0
Iron (Fe), % 96 to 97.8
98.8 to 99.25
Manganese (Mn), % 0.4 to 0.9
0.6 to 0.9
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 1.2 to 1.7
0
Sulfur (S), % 0 to 0.025
0 to 0.050
Vanadium (V), % 0.1 to 0.25
0