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R30001 Cobalt vs. ASTM F15 Fe-Ni-Co

R30001 cobalt belongs to the cobalt alloys classification, while ASTM F15 Fe-Ni-Co belongs to the iron alloys. They have a modest 20% of their average alloy composition in common, which, by itself, doesn't mean much. There are 22 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is R30001 cobalt and the bottom bar is ASTM F15 Fe-Ni-Co.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 86
73
Tensile Strength: Ultimate (UTS), MPa 620
520 to 880

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Melting Completion (Liquidus), °C 1530
1410
Melting Onset (Solidus), °C 1260
1450
Specific Heat Capacity, J/kg-K 430
460
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 11
6.0

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
3.7
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
4.0

Otherwise Unclassified Properties

Density, g/cm3 9.0
8.3
Embodied Carbon, kg CO2/kg material 8.9
5.2
Embodied Energy, MJ/kg 130
71
Embodied Water, L/kg 460
190

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 19
17 to 29
Strength to Weight: Bending, points 18
17 to 24
Thermal Diffusivity, mm2/s 3.7
4.5
Thermal Shock Resistance, points 19
32 to 55

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 2.0 to 3.0
0 to 0.040
Chromium (Cr), % 28 to 32
0 to 0.2
Cobalt (Co), % 43 to 59
16 to 18
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 0 to 3.0
50.3 to 56
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 0 to 1.0
0 to 0.2
Nickel (Ni), % 0 to 3.0
28 to 30
Silicon (Si), % 0 to 2.0
0 to 0.2
Titanium (Ti), % 0
0 to 0.1
Tungsten (W), % 11 to 13
0
Zirconium (Zr), % 0
0 to 0.1