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R30012 Cobalt vs. C82200 Copper

R30012 cobalt belongs to the cobalt alloys classification, while C82200 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 R30012 cobalt and the bottom bar is C82200 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
120
Elongation at Break, % 1.0
8.0 to 20
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 86
44
Tensile Strength: Ultimate (UTS), MPa 830
390 to 660
Tensile Strength: Yield (Proof), MPa 650
210 to 520

Thermal Properties

Latent Heat of Fusion, J/g 320
220
Melting Completion (Liquidus), °C 1470
1080
Melting Onset (Solidus), °C 1280
1040
Specific Heat Capacity, J/kg-K 440
390
Thermal Conductivity, W/m-K 15
180
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
45
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
46

Otherwise Unclassified Properties

Density, g/cm3 8.8
8.9
Embodied Carbon, kg CO2/kg material 8.3
4.8
Embodied Energy, MJ/kg 120
74
Embodied Water, L/kg 480
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.7
49 to 66
Resilience: Unit (Modulus of Resilience), kJ/m3 960
180 to 1130
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 23
18
Strength to Weight: Axial, points 26
12 to 20
Strength to Weight: Bending, points 22
13 to 19
Thermal Diffusivity, mm2/s 3.8
53
Thermal Shock Resistance, points 23
14 to 23

Alloy Composition

Beryllium (Be), % 0
0.35 to 0.8
Carbon (C), % 1.4 to 2.0
0
Chromium (Cr), % 27 to 32
0
Cobalt (Co), % 47.5 to 64.1
0 to 0.3
Copper (Cu), % 0
97.4 to 98.7
Iron (Fe), % 0 to 3.0
0
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
1.0 to 2.0
Silicon (Si), % 0 to 2.0
0
Tungsten (W), % 7.5 to 9.5
0
Residuals, % 0
0 to 0.5