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R30006 Cobalt vs. C86300 Bronze

R30006 cobalt belongs to the cobalt alloys classification, while C86300 bronze belongs to the copper alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is R30006 cobalt and the bottom bar is C86300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 1520
430
Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 1.0
14
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 85
42
Tensile Strength: Ultimate (UTS), MPa 900
850
Tensile Strength: Yield (Proof), MPa 540
480

Thermal Properties

Latent Heat of Fusion, J/g 320
200
Melting Completion (Liquidus), °C 1400
920
Melting Onset (Solidus), °C 1290
890
Specific Heat Capacity, J/kg-K 450
420
Thermal Conductivity, W/m-K 15
35
Thermal Expansion, µm/m-K 11
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
9.2

Otherwise Unclassified Properties

Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 7.8
3.0
Embodied Energy, MJ/kg 110
51
Embodied Water, L/kg 500
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8
100
Resilience: Unit (Modulus of Resilience), kJ/m3 670
1030
Stiffness to Weight: Axial, points 14
7.8
Stiffness to Weight: Bending, points 23
20
Strength to Weight: Axial, points 29
30
Strength to Weight: Bending, points 24
25
Thermal Diffusivity, mm2/s 3.9
11
Thermal Shock Resistance, points 26
28

Alloy Composition


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Aluminum (Al), % 0
5.0 to 7.5
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
60 to 66
Iron (Fe), % 0 to 3.0
2.0 to 4.0
Lead (Pb), % 0
0 to 0.2
Manganese (Mn), % 0
2.5 to 5.0
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0 to 1.0
Silicon (Si), % 0 to 2.0
0
Tin (Sn), % 0
0 to 0.2
Tungsten (W), % 4.0 to 6.0
0
Zinc (Zn), % 0
22 to 28
Residuals, % 0
0 to 1.0