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ASTM F15 Fe-Ni-Co vs. R31537 Cobalt

ASTM F15 Fe-Ni-Co belongs to the iron alloys classification, while R31537 cobalt belongs to the cobalt alloys. There are 22 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 ASTM F15 Fe-Ni-Co and the bottom bar is R31537 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 73
87
Tensile Strength: Ultimate (UTS), MPa 520 to 880
1000 to 1340

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Melting Completion (Liquidus), °C 1410
1360
Melting Onset (Solidus), °C 1450
1290
Specific Heat Capacity, J/kg-K 460
450
Thermal Conductivity, W/m-K 17
13
Thermal Expansion, µm/m-K 6.0
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0
2.1

Otherwise Unclassified Properties

Density, g/cm3 8.3
8.4
Embodied Carbon, kg CO2/kg material 5.2
8.1
Embodied Energy, MJ/kg 71
110
Embodied Water, L/kg 190
530

Common Calculations

Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 17 to 29
33 to 44
Strength to Weight: Bending, points 17 to 24
26 to 32
Thermal Diffusivity, mm2/s 4.5
3.4
Thermal Shock Resistance, points 32 to 55
24 to 32

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Carbon (C), % 0 to 0.040
0 to 0.14
Chromium (Cr), % 0 to 0.2
26 to 30
Cobalt (Co), % 16 to 18
58.9 to 69
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 50.3 to 56
0 to 0.75
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.2
5.0 to 7.0
Nickel (Ni), % 28 to 30
0 to 1.0
Nitrogen (N), % 0
0 to 0.25
Silicon (Si), % 0 to 0.2
0 to 1.0
Titanium (Ti), % 0 to 0.1
0
Zirconium (Zr), % 0 to 0.1
0

Comparable Variants