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R31538 Cobalt vs. C11600 Copper

R31538 cobalt belongs to the cobalt alloys classification, while C11600 copper belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is R31538 cobalt and the bottom bar is C11600 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
120
Elongation at Break, % 13 to 23
2.7 to 50
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 86
43
Tensile Strength: Ultimate (UTS), MPa 1020 to 1360
230 to 410
Tensile Strength: Yield (Proof), MPa 580 to 930
77 to 410

Thermal Properties

Latent Heat of Fusion, J/g 320
210
Melting Completion (Liquidus), °C 1360
1080
Melting Onset (Solidus), °C 1290
1030
Specific Heat Capacity, J/kg-K 450
390
Thermal Conductivity, W/m-K 13
390
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
100
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
100

Otherwise Unclassified Properties

Density, g/cm3 8.4
9.0
Embodied Carbon, kg CO2/kg material 8.1
2.7
Embodied Energy, MJ/kg 110
42
Embodied Water, L/kg 530
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 200
9.7 to 91
Resilience: Unit (Modulus of Resilience), kJ/m3 750 to 1920
25 to 710
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 34 to 45
7.2 to 13
Strength to Weight: Bending, points 27 to 32
9.4 to 14
Thermal Diffusivity, mm2/s 3.5
110
Thermal Shock Resistance, points 25 to 33
8.2 to 15

Alloy Composition


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Carbon (C), % 0.15 to 0.35
0
Chromium (Cr), % 26 to 30
0
Cobalt (Co), % 58.7 to 68.9
0
Copper (Cu), % 0
99.78 to 99.915
Iron (Fe), % 0 to 0.75
0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
0
Nitrogen (N), % 0 to 0.25
0
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
0.085 to 0.12
Residuals, % 0
0 to 0.1