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ASTM F15 Fe-Ni-Co vs. S20161 Stainless Steel

Both ASTM F15 Fe-Ni-Co and S20161 stainless steel are iron alloys. They have 59% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (13, 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 S20161 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
76
Tensile Strength: Ultimate (UTS), MPa 520 to 880
980

Thermal Properties

Latent Heat of Fusion, J/g 270
330
Melting Completion (Liquidus), °C 1410
1380
Melting Onset (Solidus), °C 1450
1330
Specific Heat Capacity, J/kg-K 460
490
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 6.0
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 49
12
Density, g/cm3 8.3
7.5
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
26
Strength to Weight: Axial, points 17 to 29
36
Strength to Weight: Bending, points 17 to 24
29
Thermal Diffusivity, mm2/s 4.5
4.0
Thermal Shock Resistance, points 32 to 55
22

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Carbon (C), % 0 to 0.040
0 to 0.15
Chromium (Cr), % 0 to 0.2
15 to 18
Cobalt (Co), % 16 to 18
0
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 50.3 to 56
65.6 to 73.9
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
4.0 to 6.0
Molybdenum (Mo), % 0 to 0.2
0
Nickel (Ni), % 28 to 30
4.0 to 6.0
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
3.0 to 4.0
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.1
0
Zirconium (Zr), % 0 to 0.1
0