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C19010 Copper vs. R30012 Cobalt

C19010 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 (6, in this case) are not shown.

For each property being compared, the top bar is C19010 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, % 2.4 to 22
1.0
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
86
Tensile Strength: Ultimate (UTS), MPa 330 to 640
830
Tensile Strength: Yield (Proof), MPa 260 to 620
650

Thermal Properties

Latent Heat of Fusion, J/g 210
320
Melting Completion (Liquidus), °C 1060
1470
Melting Onset (Solidus), °C 1010
1280
Specific Heat Capacity, J/kg-K 390
440
Thermal Conductivity, W/m-K 260
15
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 48 to 63
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 48 to 63
1.8

Otherwise Unclassified Properties

Density, g/cm3 8.9
8.8
Embodied Carbon, kg CO2/kg material 2.7
8.3
Embodied Energy, MJ/kg 42
120
Embodied Water, L/kg 310
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.3 to 140
7.7
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 1680
960
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
23
Strength to Weight: Axial, points 10 to 20
26
Strength to Weight: Bending, points 12 to 18
22
Thermal Diffusivity, mm2/s 75
3.8
Thermal Shock Resistance, points 12 to 23
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), % 97.3 to 99.04
0
Iron (Fe), % 0
0 to 3.0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0.8 to 1.8
0 to 3.0
Phosphorus (P), % 0.010 to 0.050
0
Silicon (Si), % 0.15 to 0.35
0 to 2.0
Tungsten (W), % 0
7.5 to 9.5
Residuals, % 0 to 0.5
0