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R30006 Cobalt vs. C82800 Copper

R30006 cobalt belongs to the cobalt alloys classification, while C82800 copper belongs to the copper alloys. There are 26 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 R30006 cobalt and the bottom bar is C82800 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
120
Elongation at Break, % 1.0
1.0 to 20
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 85
46
Tensile Strength: Ultimate (UTS), MPa 900
670 to 1140
Tensile Strength: Yield (Proof), MPa 540
380 to 1000

Thermal Properties

Latent Heat of Fusion, J/g 320
240
Melting Completion (Liquidus), °C 1400
930
Melting Onset (Solidus), °C 1290
890
Specific Heat Capacity, J/kg-K 450
390
Thermal Conductivity, W/m-K 15
120
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
18
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
19

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.7
Embodied Carbon, kg CO2/kg material 7.8
12
Embodied Energy, MJ/kg 110
190
Embodied Water, L/kg 500
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8
11 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 670
590 to 4080
Stiffness to Weight: Axial, points 14
7.8
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 29
21 to 36
Strength to Weight: Bending, points 24
20 to 28
Thermal Diffusivity, mm2/s 3.9
36
Thermal Shock Resistance, points 26
23 to 39

Alloy Composition


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Aluminum (Al), % 0
0 to 0.15
Beryllium (Be), % 0
2.5 to 2.9
Carbon (C), % 0.9 to 1.4
0
Chromium (Cr), % 27 to 32
0 to 0.1
Cobalt (Co), % 48.6 to 68.1
0.15 to 0.7
Copper (Cu), % 0
94.6 to 97.2
Iron (Fe), % 0 to 3.0
0 to 0.25
Lead (Pb), % 0
0 to 0.020
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0 to 0.2
Silicon (Si), % 0 to 2.0
0.2 to 0.35
Tin (Sn), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.12
Tungsten (W), % 4.0 to 6.0
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.5