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R30816 Cobalt vs. C19100 Copper

R30816 cobalt belongs to the cobalt alloys classification, while C19100 copper belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is R30816 cobalt and the bottom bar is C19100 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
120
Elongation at Break, % 23
17 to 37
Poisson's Ratio 0.3
0.34
Shear Modulus, GPa 81
43
Tensile Strength: Ultimate (UTS), MPa 1020
250 to 630
Tensile Strength: Yield (Proof), MPa 460
75 to 550

Thermal Properties

Latent Heat of Fusion, J/g 300
210
Melting Completion (Liquidus), °C 1540
1080
Melting Onset (Solidus), °C 1460
1040
Specific Heat Capacity, J/kg-K 420
390
Thermal Conductivity, W/m-K 13
250
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Density, g/cm3 9.1
8.9
Embodied Carbon, kg CO2/kg material 20
2.7
Embodied Energy, MJ/kg 320
43
Embodied Water, L/kg 440
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
60 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 510
24 to 1310
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 22
18
Strength to Weight: Axial, points 31
7.7 to 20
Strength to Weight: Bending, points 25
9.9 to 18
Thermal Diffusivity, mm2/s 3.3
73
Thermal Shock Resistance, points 28
8.9 to 22

Alloy Composition

Carbon (C), % 0.32 to 0.42
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 40 to 49.8
0
Copper (Cu), % 0
96.5 to 98.6
Iron (Fe), % 0 to 5.0
0 to 0.2
Lead (Pb), % 0
0 to 0.1
Manganese (Mn), % 1.0 to 2.0
0
Molybdenum (Mo), % 3.5 to 4.5
0
Nickel (Ni), % 19 to 21
0.9 to 1.3
Niobium (Nb), % 3.5 to 4.5
0
Phosphorus (P), % 0 to 0.040
0.15 to 0.35
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Tantalum (Ta), % 3.5 to 4.5
0
Tellurium (Te), % 0
0.35 to 0.6
Tungsten (W), % 3.5 to 4.5
0
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.5