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Grade FDSiCr Steel vs. AISI 403 Stainless Steel

Both grade FDSiCr steel and AISI 403 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade FDSiCr steel and the bottom bar is AISI 403 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 580
190 to 240
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.28
Reduction in Area, % 42
47 to 50
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 1930
530 to 780

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Mechanical, °C 410
740
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 48
28
Thermal Expansion, µm/m-K 13
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
6.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.9
Embodied Energy, MJ/kg 20
27
Embodied Water, L/kg 48
99

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 69
19 to 28
Strength to Weight: Bending, points 44
19 to 24
Thermal Diffusivity, mm2/s 13
7.6
Thermal Shock Resistance, points 58
20 to 29

Alloy Composition

Carbon (C), % 0.5 to 0.6
0 to 0.15
Chromium (Cr), % 0.5 to 0.8
11.5 to 13
Copper (Cu), % 0 to 0.12
0
Iron (Fe), % 96.5 to 97.8
84.7 to 88.5
Manganese (Mn), % 0.5 to 0.9
0 to 1.0
Nickel (Ni), % 0
0 to 0.6
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 1.2 to 1.6
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.030