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R30016 Cobalt vs. ASTM A369 Grade FP9

R30016 cobalt belongs to the cobalt alloys classification, while ASTM A369 grade FP9 belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is R30016 cobalt and the bottom bar is ASTM A369 grade FP9.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 8.4
20
Fatigue Strength, MPa 290
160
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 85
75
Tensile Strength: Ultimate (UTS), MPa 1010
470
Tensile Strength: Yield (Proof), MPa 580
240

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Melting Completion (Liquidus), °C 1360
1450
Melting Onset (Solidus), °C 1270
1410
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 15
26
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
10

Otherwise Unclassified Properties

Density, g/cm3 8.5
7.8
Embodied Carbon, kg CO2/kg material 7.7
2.0
Embodied Energy, MJ/kg 110
28
Embodied Water, L/kg 500
87

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 72
80
Resilience: Unit (Modulus of Resilience), kJ/m3 770
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 33
17
Strength to Weight: Bending, points 26
17
Thermal Diffusivity, mm2/s 3.9
6.9
Thermal Shock Resistance, points 24
13

Alloy Composition

Carbon (C), % 0.9 to 1.4
0 to 0.15
Chromium (Cr), % 28 to 32
8.0 to 10
Cobalt (Co), % 49.6 to 66.9
0
Iron (Fe), % 0 to 3.0
87.1 to 90.3
Manganese (Mn), % 0.5 to 2.0
0.3 to 0.6
Molybdenum (Mo), % 0 to 1.5
0.9 to 1.1
Nickel (Ni), % 0 to 3.0
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.2 to 2.0
0.5 to 1.0
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 3.5 to 5.5
0