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R31233 Cobalt vs. C12200 Copper

R31233 cobalt belongs to the cobalt alloys classification, while C12200 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 R31233 cobalt and the bottom bar is C12200 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
120
Elongation at Break, % 17
3.2 to 50
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 85
43
Tensile Strength: Ultimate (UTS), MPa 1020
220 to 410
Tensile Strength: Yield (Proof), MPa 420
69 to 400

Thermal Properties

Latent Heat of Fusion, J/g 320
210
Melting Completion (Liquidus), °C 1350
1080
Melting Onset (Solidus), °C 1330
1030
Specific Heat Capacity, J/kg-K 440
390
Thermal Conductivity, W/m-K 12
340
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
85
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
85

Otherwise Unclassified Properties

Density, g/cm3 8.6
9.0
Embodied Carbon, kg CO2/kg material 8.4
2.6
Embodied Energy, MJ/kg 110
41
Embodied Water, L/kg 480
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
11 to 91
Resilience: Unit (Modulus of Resilience), kJ/m3 410
21 to 690
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 23
18
Strength to Weight: Axial, points 33
6.9 to 13
Strength to Weight: Bending, points 26
9.1 to 14
Thermal Diffusivity, mm2/s 3.2
98
Thermal Shock Resistance, points 25
7.9 to 15

Alloy Composition

Boron (B), % 0 to 0.015
0
Carbon (C), % 0.020 to 0.1
0
Chromium (Cr), % 23.5 to 27.5
0
Cobalt (Co), % 44.7 to 63.3
0
Copper (Cu), % 0
99.9 to 99.985
Iron (Fe), % 1.0 to 5.0
0
Manganese (Mn), % 0.1 to 1.5
0
Molybdenum (Mo), % 4.0 to 6.0
0
Nickel (Ni), % 7.0 to 11
0
Nitrogen (N), % 0.030 to 0.12
0
Phosphorus (P), % 0 to 0.030
0.015 to 0.040
Silicon (Si), % 0.050 to 1.0
0
Sulfur (S), % 0 to 0.020
0
Tungsten (W), % 1.0 to 3.0
0