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C15900 Copper vs. R30605 Cobalt

C15900 copper belongs to the copper alloys classification, while R30605 cobalt belongs to the cobalt alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C15900 copper and the bottom bar is R30605 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 6.5
34
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
81
Tensile Strength: Ultimate (UTS), MPa 720
1130 to 1900
Tensile Strength: Yield (Proof), MPa 240
470 to 1600

Thermal Properties

Latent Heat of Fusion, J/g 210
290
Melting Completion (Liquidus), °C 1080
1410
Melting Onset (Solidus), °C 1030
1330
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 280
9.6
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 48
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 49
1.8

Otherwise Unclassified Properties

Density, g/cm3 8.8
9.6
Embodied Carbon, kg CO2/kg material 2.8
9.8
Embodied Energy, MJ/kg 45
140
Embodied Water, L/kg 310
450

Common Calculations

Stiffness to Weight: Axial, points 7.2
12
Stiffness to Weight: Bending, points 18
21
Strength to Weight: Axial, points 23
33 to 55
Strength to Weight: Bending, points 20
25 to 36
Thermal Diffusivity, mm2/s 80
2.5
Thermal Shock Resistance, points 26
31 to 52

Alloy Composition

Aluminum (Al), % 0.76 to 0.84
0
Carbon (C), % 0.27 to 0.33
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
46.4 to 57
Copper (Cu), % 97.5 to 97.9
0
Iron (Fe), % 0 to 0.040
0 to 3.0
Manganese (Mn), % 0
1.0 to 2.0
Nickel (Ni), % 0
9.0 to 11
Oxygen (O), % 0.4 to 0.54
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0.66 to 0.74
0
Tungsten (W), % 0
14 to 16