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C15900 Copper vs. R30006 Cobalt

C15900 copper belongs to the copper alloys classification, while R30006 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 C15900 copper and the bottom bar is R30006 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Elongation at Break, % 6.5
1.0
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
85
Tensile Strength: Ultimate (UTS), MPa 720
900
Tensile Strength: Yield (Proof), MPa 240
540

Thermal Properties

Latent Heat of Fusion, J/g 210
320
Melting Completion (Liquidus), °C 1080
1400
Melting Onset (Solidus), °C 1030
1290
Specific Heat Capacity, J/kg-K 390
450
Thermal Conductivity, W/m-K 280
15
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 48
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 49
1.7

Otherwise Unclassified Properties

Density, g/cm3 8.8
8.6
Embodied Carbon, kg CO2/kg material 2.8
7.8
Embodied Energy, MJ/kg 45
110
Embodied Water, L/kg 310
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37
7.8
Resilience: Unit (Modulus of Resilience), kJ/m3 260
670
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
23
Strength to Weight: Axial, points 23
29
Strength to Weight: Bending, points 20
24
Thermal Diffusivity, mm2/s 80
3.9
Thermal Shock Resistance, points 26
26

Alloy Composition

Aluminum (Al), % 0.76 to 0.84
0
Carbon (C), % 0.27 to 0.33
0.9 to 1.4
Chromium (Cr), % 0
27 to 32
Cobalt (Co), % 0
48.6 to 68.1
Copper (Cu), % 97.5 to 97.9
0
Iron (Fe), % 0 to 0.040
0 to 3.0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0
0 to 3.0
Oxygen (O), % 0.4 to 0.54
0
Silicon (Si), % 0
0 to 2.0
Titanium (Ti), % 0.66 to 0.74
0
Tungsten (W), % 0
4.0 to 6.0