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R30605 Cobalt vs. C96300 Copper-nickel

R30605 cobalt belongs to the cobalt alloys classification, while C96300 copper-nickel 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 C96300 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
130
Elongation at Break, % 34
11
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 81
49
Tensile Strength: Ultimate (UTS), MPa 1130 to 1900
580
Tensile Strength: Yield (Proof), MPa 470 to 1600
430

Thermal Properties

Latent Heat of Fusion, J/g 290
230
Melting Completion (Liquidus), °C 1410
1200
Melting Onset (Solidus), °C 1330
1150
Specific Heat Capacity, J/kg-K 410
400
Thermal Conductivity, W/m-K 9.6
37
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
6.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
6.1

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.9
Embodied Carbon, kg CO2/kg material 9.8
5.1
Embodied Energy, MJ/kg 140
76
Embodied Water, L/kg 450
290

Common Calculations

Stiffness to Weight: Axial, points 12
8.2
Stiffness to Weight: Bending, points 21
19
Strength to Weight: Axial, points 33 to 55
18
Strength to Weight: Bending, points 25 to 36
17
Thermal Diffusivity, mm2/s 2.5
10
Thermal Shock Resistance, points 31 to 52
20

Alloy Composition


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Carbon (C), % 0.050 to 0.15
0 to 0.15
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 57
0
Copper (Cu), % 0
72.3 to 80.8
Iron (Fe), % 0 to 3.0
0.5 to 1.5
Lead (Pb), % 0
0 to 0.010
Manganese (Mn), % 1.0 to 2.0
0.25 to 1.5
Nickel (Ni), % 9.0 to 11
18 to 22
Niobium (Nb), % 0
0.5 to 1.5
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 14 to 16
0
Residuals, % 0
0 to 0.5