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Grade FDC Steel vs. S41425 Stainless Steel

Both grade FDC steel and S41425 stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade FDC steel and the bottom bar is S41425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 510
280
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Reduction in Area, % 42
51
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 1680
920

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
810
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
16
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
13
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
2.9
Embodied Energy, MJ/kg 19
40
Embodied Water, L/kg 47
120

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 60
33
Strength to Weight: Bending, points 40
27
Thermal Diffusivity, mm2/s 14
4.4
Thermal Shock Resistance, points 50
33

Alloy Composition

Carbon (C), % 0.6 to 0.75
0 to 0.050
Chromium (Cr), % 0 to 0.3
12 to 15
Copper (Cu), % 0 to 0.12
0 to 0.3
Iron (Fe), % 98 to 99.4
74 to 81.9
Manganese (Mn), % 0.5 to 1.2
0.5 to 1.0
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 0
4.0 to 7.0
Nitrogen (N), % 0
0.060 to 0.12
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.1 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.0050