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C82200 Copper vs. R31539 Cobalt

C82200 copper belongs to the copper alloys classification, while R31539 cobalt belongs to the cobalt 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 C82200 copper and the bottom bar is R31539 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
220
Elongation at Break, % 8.0 to 20
13 to 22
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
86
Tensile Strength: Ultimate (UTS), MPa 390 to 660
1000 to 1340
Tensile Strength: Yield (Proof), MPa 210 to 520
590 to 940

Thermal Properties

Latent Heat of Fusion, J/g 220
320
Melting Completion (Liquidus), °C 1080
1360
Melting Onset (Solidus), °C 1040
1290
Specific Heat Capacity, J/kg-K 390
450
Thermal Conductivity, W/m-K 180
13
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 46
2.1

Otherwise Unclassified Properties

Density, g/cm3 8.9
8.4
Embodied Carbon, kg CO2/kg material 4.8
8.2
Embodied Energy, MJ/kg 74
110
Embodied Water, L/kg 310
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 49 to 66
140 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 1130
780 to 2000
Stiffness to Weight: Axial, points 7.4
15
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 12 to 20
33 to 44
Strength to Weight: Bending, points 13 to 19
27 to 32
Thermal Diffusivity, mm2/s 53
3.5
Thermal Shock Resistance, points 14 to 23
24 to 32

Alloy Composition

Aluminum (Al), % 0
0.3 to 1.0
Beryllium (Be), % 0.35 to 0.8
0
Carbon (C), % 0
0 to 0.14
Chromium (Cr), % 0
26 to 30
Cobalt (Co), % 0 to 0.3
57.7 to 68.7
Copper (Cu), % 97.4 to 98.7
0
Iron (Fe), % 0
0 to 0.75
Lanthanum (La), % 0
0.030 to 0.2
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 1.0 to 2.0
0 to 1.0
Nitrogen (N), % 0
0 to 0.25
Silicon (Si), % 0
0 to 1.0
Residuals, % 0 to 0.5
0