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R30605 Cobalt vs. C15000 Copper

R30605 cobalt belongs to the cobalt alloys classification, while C15000 copper belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is R30605 cobalt and the bottom bar is C15000 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
120
Elongation at Break, % 34
13 to 54
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 81
43
Tensile Strength: Ultimate (UTS), MPa 1130 to 1900
200 to 460
Tensile Strength: Yield (Proof), MPa 470 to 1600
45 to 460

Thermal Properties

Latent Heat of Fusion, J/g 290
210
Melting Completion (Liquidus), °C 1410
1080
Melting Onset (Solidus), °C 1330
980
Specific Heat Capacity, J/kg-K 410
390
Thermal Conductivity, W/m-K 9.6
370
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
93
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
93

Otherwise Unclassified Properties

Density, g/cm3 9.6
9.0
Embodied Carbon, kg CO2/kg material 9.8
2.7
Embodied Energy, MJ/kg 140
43
Embodied Water, L/kg 450
310

Common Calculations

Stiffness to Weight: Axial, points 12
7.2
Stiffness to Weight: Bending, points 21
18
Strength to Weight: Axial, points 33 to 55
6.2 to 14
Strength to Weight: Bending, points 25 to 36
8.5 to 15
Thermal Diffusivity, mm2/s 2.5
110
Thermal Shock Resistance, points 31 to 52
7.3 to 17

Alloy Composition

Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 57
0
Copper (Cu), % 0
99.8 to 99.9
Iron (Fe), % 0 to 3.0
0
Manganese (Mn), % 1.0 to 2.0
0
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 14 to 16
0
Zirconium (Zr), % 0
0.1 to 0.2