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R31538 Cobalt vs. C82600 Copper

R31538 cobalt belongs to the cobalt alloys classification, while C82600 copper belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is R31538 cobalt and the bottom bar is C82600 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
120
Elongation at Break, % 13 to 23
1.0 to 20
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 86
46
Tensile Strength: Ultimate (UTS), MPa 1020 to 1360
570 to 1140
Tensile Strength: Yield (Proof), MPa 580 to 930
320 to 1070

Thermal Properties

Latent Heat of Fusion, J/g 320
240
Melting Completion (Liquidus), °C 1360
950
Melting Onset (Solidus), °C 1290
860
Specific Heat Capacity, J/kg-K 450
390
Thermal Conductivity, W/m-K 13
130
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
19
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
20

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.7
Embodied Carbon, kg CO2/kg material 8.1
11
Embodied Energy, MJ/kg 110
180
Embodied Water, L/kg 530
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 200
11 to 97
Resilience: Unit (Modulus of Resilience), kJ/m3 750 to 1920
430 to 4690
Stiffness to Weight: Axial, points 15
7.8
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 34 to 45
18 to 36
Strength to Weight: Bending, points 27 to 32
17 to 28
Thermal Diffusivity, mm2/s 3.5
37
Thermal Shock Resistance, points 25 to 33
19 to 39

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Beryllium (Be), % 0
2.3 to 2.6
Carbon (C), % 0.15 to 0.35
0
Chromium (Cr), % 26 to 30
0 to 0.1
Cobalt (Co), % 58.7 to 68.9
0.35 to 0.65
Copper (Cu), % 0
94.9 to 97.2
Iron (Fe), % 0 to 0.75
0 to 0.25
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
0 to 0.2
Nitrogen (N), % 0 to 0.25
0
Silicon (Si), % 0 to 1.0
0.2 to 0.35
Tin (Sn), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.12
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.5