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Grade FDSiCr Steel vs. AISI 317L Stainless Steel

Both grade FDSiCr steel and AISI 317L stainless steel are iron alloys. They have 65% 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 317L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 580
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Reduction in Area, % 42
56
Shear Modulus, GPa 80
82
Tensile Strength: Ultimate (UTS), MPa 1930
550

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Mechanical, °C 410
1010
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 48
14
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
21
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 1.5
4.3
Embodied Energy, MJ/kg 20
59
Embodied Water, L/kg 48
160

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 69
19
Strength to Weight: Bending, points 44
19
Thermal Diffusivity, mm2/s 13
3.8
Thermal Shock Resistance, points 58
12

Alloy Composition

Carbon (C), % 0.5 to 0.6
0 to 0.030
Chromium (Cr), % 0.5 to 0.8
18 to 20
Copper (Cu), % 0 to 0.12
0
Iron (Fe), % 96.5 to 97.8
58 to 68
Manganese (Mn), % 0.5 to 0.9
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0
11 to 15
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 1.2 to 1.6
0 to 0.75
Sulfur (S), % 0 to 0.025
0 to 0.030