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S40930 Stainless Steel vs. Grade FDC Steel

Both S40930 stainless steel and grade FDC steel are iron alloys. They have 88% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is S40930 stainless steel and the bottom bar is grade FDC steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
510
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
80
Tensile Strength: Ultimate (UTS), MPa 430
1680

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 710
400
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
51
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.3
1.4
Embodied Energy, MJ/kg 32
19
Embodied Water, L/kg 94
47

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 16
60
Strength to Weight: Bending, points 16
40
Thermal Diffusivity, mm2/s 6.7
14
Thermal Shock Resistance, points 16
50

Alloy Composition

Carbon (C), % 0 to 0.030
0.6 to 0.75
Chromium (Cr), % 10.5 to 11.7
0 to 0.3
Copper (Cu), % 0
0 to 0.12
Iron (Fe), % 84.7 to 89.4
98 to 99.4
Manganese (Mn), % 0 to 1.0
0.5 to 1.2
Nickel (Ni), % 0 to 0.5
0
Niobium (Nb), % 0.080 to 0.75
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.1 to 0.35
Sulfur (S), % 0 to 0.020
0 to 0.025
Titanium (Ti), % 0.050 to 0.2
0