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R30605 Cobalt vs. C67600 Bronze

R30605 cobalt belongs to the cobalt alloys classification, while C67600 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 C67600 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
100
Elongation at Break, % 34
13 to 33
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 81
40
Tensile Strength: Ultimate (UTS), MPa 1130 to 1900
430 to 570
Tensile Strength: Yield (Proof), MPa 470 to 1600
170 to 380

Thermal Properties

Latent Heat of Fusion, J/g 290
170
Melting Completion (Liquidus), °C 1410
890
Melting Onset (Solidus), °C 1330
870
Specific Heat Capacity, J/kg-K 410
380
Thermal Conductivity, W/m-K 9.6
110
Thermal Expansion, µm/m-K 12
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
24
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
27

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.0
Embodied Carbon, kg CO2/kg material 9.8
2.8
Embodied Energy, MJ/kg 140
47
Embodied Water, L/kg 450
330

Common Calculations

Stiffness to Weight: Axial, points 12
7.2
Stiffness to Weight: Bending, points 21
20
Strength to Weight: Axial, points 33 to 55
15 to 20
Strength to Weight: Bending, points 25 to 36
16 to 19
Thermal Diffusivity, mm2/s 2.5
35
Thermal Shock Resistance, points 31 to 52
14 to 19

Alloy Composition


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Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 57
0
Copper (Cu), % 0
57 to 60
Iron (Fe), % 0 to 3.0
0.4 to 1.3
Lead (Pb), % 0
0.5 to 1.0
Manganese (Mn), % 1.0 to 2.0
0.050 to 0.5
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0.5 to 1.5
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
35.2 to 41.6
Residuals, % 0
0 to 0.5