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Grade FDSiCr Steel vs. EN 1.3549 Stainless Steel

Both grade FDSiCr steel and EN 1.3549 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade FDSiCr steel and the bottom bar is EN 1.3549 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 580
220
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 1930
730

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Mechanical, °C 410
910
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 48
21
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
10
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 1.5
2.6
Embodied Energy, MJ/kg 20
37
Embodied Water, L/kg 48
130

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 69
27
Strength to Weight: Bending, points 44
24
Thermal Diffusivity, mm2/s 13
5.6
Thermal Shock Resistance, points 58
26

Alloy Composition

Carbon (C), % 0.5 to 0.6
0.85 to 1.0
Chromium (Cr), % 0.5 to 0.8
17 to 19
Copper (Cu), % 0 to 0.12
0
Iron (Fe), % 96.5 to 97.8
77.5 to 82
Manganese (Mn), % 0.5 to 0.9
0 to 1.0
Molybdenum (Mo), % 0
0.9 to 1.3
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 1.2 to 1.6
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030
Vanadium (V), % 0
0.070 to 0.12