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C14520 Copper vs. R30816 Cobalt

C14520 copper belongs to the copper alloys classification, while R30816 cobalt belongs to the cobalt alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C14520 copper and the bottom bar is R30816 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
210
Elongation at Break, % 9.0 to 9.6
23
Poisson's Ratio 0.34
0.3
Shear Modulus, GPa 43
81
Tensile Strength: Ultimate (UTS), MPa 290 to 330
1020
Tensile Strength: Yield (Proof), MPa 230 to 250
460

Thermal Properties

Latent Heat of Fusion, J/g 210
300
Melting Completion (Liquidus), °C 1080
1540
Melting Onset (Solidus), °C 1050
1460
Specific Heat Capacity, J/kg-K 390
420
Thermal Conductivity, W/m-K 320
13
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Density, g/cm3 8.9
9.1
Embodied Carbon, kg CO2/kg material 2.6
20
Embodied Energy, MJ/kg 42
320
Embodied Water, L/kg 310
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
190
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
510
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 18
22
Strength to Weight: Axial, points 9.0 to 10
31
Strength to Weight: Bending, points 11 to 12
25
Thermal Diffusivity, mm2/s 94
3.3
Thermal Shock Resistance, points 10 to 12
28

Alloy Composition

Carbon (C), % 0
0.32 to 0.42
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
40 to 49.8
Copper (Cu), % 99.2 to 99.596
0
Iron (Fe), % 0
0 to 5.0
Manganese (Mn), % 0
1.0 to 2.0
Molybdenum (Mo), % 0
3.5 to 4.5
Nickel (Ni), % 0
19 to 21
Niobium (Nb), % 0
3.5 to 4.5
Phosphorus (P), % 0.0040 to 0.020
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 0
3.5 to 4.5
Tellurium (Te), % 0.4 to 0.7
0
Tungsten (W), % 0
3.5 to 4.5