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R30006 Cobalt vs. C61400 Bronze

R30006 cobalt belongs to the cobalt alloys classification, while C61400 bronze belongs to the copper alloys. There are 26 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 R30006 cobalt and the bottom bar is C61400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 1.0
34 to 40
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 85
43
Tensile Strength: Ultimate (UTS), MPa 900
540 to 570
Tensile Strength: Yield (Proof), MPa 540
220 to 270

Thermal Properties

Latent Heat of Fusion, J/g 320
220
Melting Completion (Liquidus), °C 1400
1050
Melting Onset (Solidus), °C 1290
1040
Specific Heat Capacity, J/kg-K 450
420
Thermal Conductivity, W/m-K 15
67
Thermal Expansion, µm/m-K 11
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
14
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
15

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.5
Embodied Carbon, kg CO2/kg material 7.8
3.0
Embodied Energy, MJ/kg 110
48
Embodied Water, L/kg 500
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8
160 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 670
210 to 310
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 29
18 to 19
Strength to Weight: Bending, points 24
17 to 18
Thermal Diffusivity, mm2/s 3.9
19
Thermal Shock Resistance, points 26
18 to 20

Alloy Composition


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Aluminum (Al), % 0
6.0 to 8.0
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
86 to 92.5
Iron (Fe), % 0 to 3.0
1.5 to 3.5
Lead (Pb), % 0
0 to 0.010
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 2.0
0
Tungsten (W), % 4.0 to 6.0
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5