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R30816 Cobalt vs. R30001 Cobalt

Both R30816 cobalt and R30001 cobalt are cobalt alloys. They have 73% of their average alloy composition in common. There are 21 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 R30816 cobalt and the bottom bar is R30001 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
220
Elongation at Break, % 23
1.0
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 81
86
Tensile Strength: Ultimate (UTS), MPa 1020
620

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Melting Completion (Liquidus), °C 1540
1530
Melting Onset (Solidus), °C 1460
1260
Specific Heat Capacity, J/kg-K 420
430
Thermal Conductivity, W/m-K 13
15
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Density, g/cm3 9.1
9.0
Embodied Carbon, kg CO2/kg material 20
8.9
Embodied Energy, MJ/kg 320
130
Embodied Water, L/kg 440
460

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
22
Strength to Weight: Axial, points 31
19
Strength to Weight: Bending, points 25
18
Thermal Diffusivity, mm2/s 3.3
3.7
Thermal Shock Resistance, points 28
19

Alloy Composition

Carbon (C), % 0.32 to 0.42
2.0 to 3.0
Chromium (Cr), % 19 to 21
28 to 32
Cobalt (Co), % 40 to 49.8
43 to 59
Iron (Fe), % 0 to 5.0
0 to 3.0
Manganese (Mn), % 1.0 to 2.0
0
Molybdenum (Mo), % 3.5 to 4.5
0 to 1.0
Nickel (Ni), % 19 to 21
0 to 3.0
Niobium (Nb), % 3.5 to 4.5
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.030
0
Tantalum (Ta), % 3.5 to 4.5
0
Tungsten (W), % 3.5 to 4.5
11 to 13