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C19800 Copper vs. R30075 Cobalt

C19800 copper belongs to the copper alloys classification, while R30075 cobalt belongs to the cobalt alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C19800 copper and the bottom bar is R30075 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210 to 250
Elongation at Break, % 9.0 to 12
12
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
82 to 98
Tensile Strength: Ultimate (UTS), MPa 430 to 550
780 to 1280
Tensile Strength: Yield (Proof), MPa 420 to 550
480 to 840

Thermal Properties

Latent Heat of Fusion, J/g 210
320
Melting Completion (Liquidus), °C 1070
1360
Melting Onset (Solidus), °C 1050
1290
Specific Heat Capacity, J/kg-K 390
450
Thermal Conductivity, W/m-K 260
13
Thermal Expansion, µm/m-K 18
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 62
2.1

Otherwise Unclassified Properties

Density, g/cm3 8.9
8.4
Embodied Carbon, kg CO2/kg material 2.8
8.1
Embodied Energy, MJ/kg 43
110
Embodied Water, L/kg 320
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 49 to 52
84 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 770 to 1320
560 to 1410
Stiffness to Weight: Axial, points 7.2
14 to 17
Stiffness to Weight: Bending, points 18
24 to 25
Strength to Weight: Axial, points 14 to 17
26 to 42
Strength to Weight: Bending, points 14 to 17
22 to 31
Thermal Diffusivity, mm2/s 75
3.5
Thermal Shock Resistance, points 15 to 20
21 to 29

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Boron (B), % 0
0 to 0.010
Carbon (C), % 0
0 to 0.35
Chromium (Cr), % 0
27 to 30
Cobalt (Co), % 0
58.7 to 68
Copper (Cu), % 95.7 to 99.47
0
Iron (Fe), % 0.020 to 0.5
0 to 0.75
Magnesium (Mg), % 0.1 to 1.0
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 0
0 to 0.5
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0.010 to 0.1
0 to 0.020
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 0.1 to 1.0
0
Titanium (Ti), % 0
0 to 0.1
Tungsten (W), % 0
0 to 0.2
Zinc (Zn), % 0.3 to 1.5
0
Residuals, % 0 to 0.2
0