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C10200 Copper vs. R30012 Cobalt

C10200 copper belongs to the copper alloys classification, while R30012 cobalt belongs to the cobalt 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 C10200 copper and the bottom bar is R30012 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
220
Elongation at Break, % 2.6 to 50
1.0
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
86
Tensile Strength: Ultimate (UTS), MPa 230 to 410
830
Tensile Strength: Yield (Proof), MPa 77 to 400
650

Thermal Properties

Latent Heat of Fusion, J/g 210
320
Melting Completion (Liquidus), °C 1080
1470
Melting Onset (Solidus), °C 1080
1280
Specific Heat Capacity, J/kg-K 390
440
Thermal Conductivity, W/m-K 390
15
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 100
1.8

Otherwise Unclassified Properties

Density, g/cm3 9.0
8.8
Embodied Carbon, kg CO2/kg material 2.6
8.3
Embodied Energy, MJ/kg 41
120
Embodied Water, L/kg 310
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.4 to 91
7.7
Resilience: Unit (Modulus of Resilience), kJ/m3 25 to 690
960
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
23
Strength to Weight: Axial, points 7.2 to 13
26
Strength to Weight: Bending, points 9.4 to 14
22
Thermal Diffusivity, mm2/s 110
3.8
Thermal Shock Resistance, points 8.2 to 15
23

Alloy Composition

Carbon (C), % 0
1.4 to 2.0
Chromium (Cr), % 0
27 to 32
Cobalt (Co), % 0
47.5 to 64.1
Copper (Cu), % 99.95 to 100
0
Iron (Fe), % 0
0 to 3.0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0
0 to 3.0
Oxygen (O), % 0 to 0.0010
0
Silicon (Si), % 0
0 to 2.0
Tungsten (W), % 0
7.5 to 9.5