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R30605 Cobalt vs. R30001 Cobalt

Both R30605 cobalt and R30001 cobalt are cobalt alloys. They have 86% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is R30605 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, % 34
1.0
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 81
86
Tensile Strength: Ultimate (UTS), MPa 1130 to 1900
620

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Melting Completion (Liquidus), °C 1410
1530
Melting Onset (Solidus), °C 1330
1260
Specific Heat Capacity, J/kg-K 410
430
Thermal Conductivity, W/m-K 9.6
15
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
1.8

Otherwise Unclassified Properties

Density, g/cm3 9.6
9.0
Embodied Carbon, kg CO2/kg material 9.8
8.9
Embodied Energy, MJ/kg 140
130
Embodied Water, L/kg 450
460

Common Calculations

Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
22
Strength to Weight: Axial, points 33 to 55
19
Strength to Weight: Bending, points 25 to 36
18
Thermal Diffusivity, mm2/s 2.5
3.7
Thermal Shock Resistance, points 31 to 52
19

Alloy Composition

Carbon (C), % 0.050 to 0.15
2.0 to 3.0
Chromium (Cr), % 19 to 21
28 to 32
Cobalt (Co), % 46.4 to 57
43 to 59
Iron (Fe), % 0 to 3.0
0 to 3.0
Manganese (Mn), % 1.0 to 2.0
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 9.0 to 11
0 to 3.0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.4
0 to 2.0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 14 to 16
11 to 13