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ASTM F15 Fe-Ni-Co vs. S17400 Stainless Steel

Both ASTM F15 Fe-Ni-Co and S17400 stainless steel are iron alloys. They have 58% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is ASTM F15 Fe-Ni-Co and the bottom bar is S17400 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 73
75
Tensile Strength: Ultimate (UTS), MPa 520 to 880
910 to 1390

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1450
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 17
17
Thermal Expansion, µm/m-K 6.0
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 49
14
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 5.2
2.7
Embodied Energy, MJ/kg 71
39
Embodied Water, L/kg 190
130

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 17 to 29
32 to 49
Strength to Weight: Bending, points 17 to 24
27 to 35
Thermal Diffusivity, mm2/s 4.5
4.5
Thermal Shock Resistance, points 32 to 55
30 to 46

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Carbon (C), % 0 to 0.040
0 to 0.070
Chromium (Cr), % 0 to 0.2
15 to 17
Cobalt (Co), % 16 to 18
0
Copper (Cu), % 0 to 0.2
3.0 to 5.0
Iron (Fe), % 50.3 to 56
70.4 to 78.9
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.2
0
Nickel (Ni), % 28 to 30
3.0 to 5.0
Niobium (Nb), % 0
0.15 to 0.45
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.1
0
Zirconium (Zr), % 0 to 0.1
0