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EN 1.4374 Stainless Steel vs. Grade FDSiCr Steel

Both EN 1.4374 stainless steel and grade FDSiCr steel are iron alloys. They have 68% 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 EN 1.4374 stainless steel and the bottom bar is grade FDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
580
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 800
1930

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Mechanical, °C 920
410
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
48
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 14
2.2
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.9
1.5
Embodied Energy, MJ/kg 42
20
Embodied Water, L/kg 150
48

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 29
69
Strength to Weight: Bending, points 25
44
Thermal Diffusivity, mm2/s 4.0
13
Thermal Shock Resistance, points 17
58

Alloy Composition

Carbon (C), % 0.050 to 0.1
0.5 to 0.6
Chromium (Cr), % 17.5 to 18.5
0.5 to 0.8
Copper (Cu), % 0 to 0.4
0 to 0.12
Iron (Fe), % 63.5 to 67.9
96.5 to 97.8
Manganese (Mn), % 9.0 to 10
0.5 to 0.9
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 5.0 to 6.0
0
Nitrogen (N), % 0.25 to 0.32
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0.3 to 0.6
1.2 to 1.6
Sulfur (S), % 0 to 0.030
0 to 0.025