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AISI 309S Stainless Steel vs. Grade FDSiCrV Steel

Both AISI 309S stainless steel and grade FDSiCrV steel are iron alloys. They have 64% 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 AISI 309S stainless steel and the bottom bar is grade FDSiCrV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
630
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.27
0.29
Reduction in Area, % 51
42
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 580
2100

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Mechanical, °C 1080
420
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
47
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 19
2.3
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.6
1.9
Embodied Energy, MJ/kg 51
26
Embodied Water, L/kg 170
50

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
75
Strength to Weight: Bending, points 20
47
Thermal Diffusivity, mm2/s 4.0
13
Thermal Shock Resistance, points 13
63

Alloy Composition

Carbon (C), % 0 to 0.080
0.5 to 0.7
Chromium (Cr), % 22 to 24
0.5 to 1.0
Copper (Cu), % 0
0 to 0.12
Iron (Fe), % 58.1 to 66
96 to 97.8
Manganese (Mn), % 0 to 2.0
0.4 to 0.9
Nickel (Ni), % 12 to 15
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.75
1.2 to 1.7
Sulfur (S), % 0 to 0.030
0 to 0.025
Vanadium (V), % 0
0.1 to 0.25