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R30003 Cobalt vs. C16200 Copper

R30003 cobalt belongs to the cobalt alloys classification, while C16200 copper belongs to the copper alloys. There are 27 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is R30003 cobalt and the bottom bar is C16200 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
120
Elongation at Break, % 10 to 73
2.0 to 56
Fatigue Strength, MPa 320 to 560
100 to 210
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 83
43
Tensile Strength: Ultimate (UTS), MPa 970 to 1720
240 to 550
Tensile Strength: Yield (Proof), MPa 510 to 1090
48 to 470

Thermal Properties

Latent Heat of Fusion, J/g 310
210
Melting Completion (Liquidus), °C 1400
1080
Melting Onset (Solidus), °C 1440
1030
Specific Heat Capacity, J/kg-K 450
380
Thermal Conductivity, W/m-K 13
360
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
90
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
90

Otherwise Unclassified Properties

Base Metal Price, % relative 95
30
Density, g/cm3 8.4
9.0
Embodied Carbon, kg CO2/kg material 8.0
2.6
Embodied Energy, MJ/kg 110
41
Embodied Water, L/kg 400
310

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 600 to 2790
10 to 970
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 32 to 57
7.4 to 17
Strength to Weight: Bending, points 26 to 38
9.6 to 17
Thermal Diffusivity, mm2/s 3.3
100
Thermal Shock Resistance, points 26 to 45
8.7 to 20

Alloy Composition

Boron (B), % 0 to 0.1
0
Cadmium (Cd), % 0
0.7 to 1.2
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 39 to 41
0
Copper (Cu), % 0
98.6 to 99.3
Iron (Fe), % 10 to 20.5
0 to 0.2
Manganese (Mn), % 1.5 to 2.5
0
Molybdenum (Mo), % 6.0 to 8.0
0
Nickel (Ni), % 14 to 16
0
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 1.2
0
Sulfur (S), % 0 to 0.015
0