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R30006 Cobalt vs. C19025 Copper

R30006 cobalt belongs to the cobalt alloys classification, while C19025 copper belongs to the copper alloys. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is R30006 cobalt and the bottom bar is C19025 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
120
Elongation at Break, % 1.0
8.0 to 17
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 85
43
Tensile Strength: Ultimate (UTS), MPa 900
480 to 620

Thermal Properties

Latent Heat of Fusion, J/g 320
210
Melting Completion (Liquidus), °C 1400
1080
Melting Onset (Solidus), °C 1290
1020
Specific Heat Capacity, J/kg-K 450
380
Thermal Conductivity, W/m-K 15
160
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
40
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
40

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.9
Embodied Carbon, kg CO2/kg material 7.8
2.8
Embodied Energy, MJ/kg 110
44
Embodied Water, L/kg 500
320

Common Calculations

Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 23
18
Strength to Weight: Axial, points 29
15 to 19
Strength to Weight: Bending, points 24
15 to 18
Thermal Diffusivity, mm2/s 3.9
47
Thermal Shock Resistance, points 26
17 to 22

Alloy Composition


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Carbon (C), % 0.9 to 1.4
0
Chromium (Cr), % 27 to 32
0
Cobalt (Co), % 48.6 to 68.1
0
Copper (Cu), % 0
97.1 to 98.5
Iron (Fe), % 0 to 3.0
0
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0.8 to 1.2
Phosphorus (P), % 0
0.030 to 0.070
Silicon (Si), % 0 to 2.0
0
Tin (Sn), % 0
0.7 to 1.1
Tungsten (W), % 4.0 to 6.0
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.3