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ASTM F15 Fe-Ni-Co vs. S44535 Stainless Steel

Both ASTM F15 Fe-Ni-Co and S44535 stainless steel are iron alloys. They have 54% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (12, 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 S44535 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.3
0.27
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 520 to 880
450

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1450
1390
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 17
21
Thermal Expansion, µm/m-K 6.0
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 49
11
Density, g/cm3 8.3
7.7
Embodied Carbon, kg CO2/kg material 5.2
2.4
Embodied Energy, MJ/kg 71
34
Embodied Water, L/kg 190
140

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 17 to 29
16
Strength to Weight: Bending, points 17 to 24
17
Thermal Diffusivity, mm2/s 4.5
5.6
Thermal Shock Resistance, points 32 to 55
15

Alloy Composition

Aluminum (Al), % 0 to 0.1
0 to 0.5
Carbon (C), % 0 to 0.040
0 to 0.030
Chromium (Cr), % 0 to 0.2
20 to 24
Cobalt (Co), % 16 to 18
0
Copper (Cu), % 0 to 0.2
0 to 0.5
Iron (Fe), % 50.3 to 56
73.2 to 79.6
Lanthanum (La), % 0
0.040 to 0.2
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0.3 to 0.8
Molybdenum (Mo), % 0 to 0.2
0
Nickel (Ni), % 28 to 30
0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.2
0 to 0.5
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.1
0.030 to 0.2
Zirconium (Zr), % 0 to 0.1
0