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R30605 Cobalt vs. C64200 Bronze

R30605 cobalt belongs to the cobalt alloys classification, while C64200 bronze belongs to the copper alloys. There are 24 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 R30605 cobalt and the bottom bar is C64200 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Elongation at Break, % 34
14 to 35
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 81
42
Tensile Strength: Ultimate (UTS), MPa 1130 to 1900
540 to 640
Tensile Strength: Yield (Proof), MPa 470 to 1600
230 to 320

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Melting Completion (Liquidus), °C 1410
1000
Melting Onset (Solidus), °C 1330
980
Specific Heat Capacity, J/kg-K 410
430
Thermal Conductivity, W/m-K 9.6
45
Thermal Expansion, µm/m-K 12
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
8.6

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.3
Embodied Carbon, kg CO2/kg material 9.8
3.0
Embodied Energy, MJ/kg 140
50
Embodied Water, L/kg 450
370

Common Calculations

Stiffness to Weight: Axial, points 12
7.5
Stiffness to Weight: Bending, points 21
19
Strength to Weight: Axial, points 33 to 55
18 to 21
Strength to Weight: Bending, points 25 to 36
18 to 20
Thermal Diffusivity, mm2/s 2.5
13
Thermal Shock Resistance, points 31 to 52
20 to 23

Alloy Composition


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Aluminum (Al), % 0
6.3 to 7.6
Arsenic (As), % 0
0 to 0.15
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 57
0
Copper (Cu), % 0
88.2 to 92.2
Iron (Fe), % 0 to 3.0
0 to 0.3
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 1.0 to 2.0
0 to 0.1
Nickel (Ni), % 9.0 to 11
0 to 0.25
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.4
1.5 to 2.2
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.2
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.5