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Grade FDSiCr Steel vs. EN 1.4865 Stainless Steel

Both grade FDSiCr steel and EN 1.4865 stainless steel are iron alloys. They have 43% of their average alloy composition in common. There are 25 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 FDSiCr steel and the bottom bar is EN 1.4865 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 580
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 1930
470

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Maximum Temperature: Mechanical, °C 410
1020
Melting Completion (Liquidus), °C 1440
1380
Melting Onset (Solidus), °C 1400
1330
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 48
12
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
33
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 1.5
5.8
Embodied Energy, MJ/kg 20
81
Embodied Water, L/kg 48
200

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 69
16
Strength to Weight: Bending, points 44
17
Thermal Diffusivity, mm2/s 13
3.1
Thermal Shock Resistance, points 58
11

Alloy Composition

Carbon (C), % 0.5 to 0.6
0.3 to 0.5
Chromium (Cr), % 0.5 to 0.8
18 to 21
Copper (Cu), % 0 to 0.12
0
Iron (Fe), % 96.5 to 97.8
34.4 to 44.7
Manganese (Mn), % 0.5 to 0.9
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
36 to 39
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 1.2 to 1.6
1.0 to 2.5
Sulfur (S), % 0 to 0.025
0 to 0.030