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C19800 Copper vs. R30035 Cobalt

C19800 copper belongs to the copper alloys classification, while R30035 cobalt belongs to the cobalt alloys. There are 27 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 C19800 copper and the bottom bar is R30035 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220 to 230
Elongation at Break, % 9.0 to 12
9.0 to 46
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
84 to 89
Tensile Strength: Ultimate (UTS), MPa 430 to 550
900 to 1900
Tensile Strength: Yield (Proof), MPa 420 to 550
300 to 1650

Thermal Properties

Latent Heat of Fusion, J/g 210
320
Melting Completion (Liquidus), °C 1070
1440
Melting Onset (Solidus), °C 1050
1320
Specific Heat Capacity, J/kg-K 390
440
Thermal Conductivity, W/m-K 260
11
Thermal Expansion, µm/m-K 18
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 62
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 30
100
Density, g/cm3 8.9
8.7
Embodied Carbon, kg CO2/kg material 2.8
10
Embodied Energy, MJ/kg 43
140
Embodied Water, L/kg 320
410

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 49 to 52
160 to 320
Resilience: Unit (Modulus of Resilience), kJ/m3 770 to 1320
210 to 5920
Stiffness to Weight: Axial, points 7.2
14 to 15
Stiffness to Weight: Bending, points 18
23 to 24
Strength to Weight: Axial, points 14 to 17
29 to 61
Strength to Weight: Bending, points 14 to 17
24 to 39
Thermal Diffusivity, mm2/s 75
3.0
Thermal Shock Resistance, points 15 to 20
23 to 46

Alloy Composition

Boron (B), % 0
0 to 0.015
Carbon (C), % 0
0 to 0.025
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
29.1 to 39
Copper (Cu), % 95.7 to 99.47
0
Iron (Fe), % 0.020 to 0.5
0 to 1.0
Magnesium (Mg), % 0.1 to 1.0
0
Manganese (Mn), % 0
0 to 0.15
Molybdenum (Mo), % 0
9.0 to 10.5
Nickel (Ni), % 0
33 to 37
Phosphorus (P), % 0.010 to 0.1
0 to 0.015
Silicon (Si), % 0
0 to 0.15
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 0.1 to 1.0
0
Titanium (Ti), % 0
0 to 1.0
Zinc (Zn), % 0.3 to 1.5
0
Residuals, % 0 to 0.2
0