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C96400 Copper-nickel vs. R30001 Cobalt

C96400 copper-nickel belongs to the copper alloys classification, while R30001 cobalt belongs to the cobalt alloys. There are 23 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 C96400 copper-nickel and the bottom bar is R30001 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
220
Elongation at Break, % 25
1.0
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 51
86
Tensile Strength: Ultimate (UTS), MPa 490
620

Thermal Properties

Latent Heat of Fusion, J/g 240
310
Melting Completion (Liquidus), °C 1240
1530
Melting Onset (Solidus), °C 1170
1260
Specific Heat Capacity, J/kg-K 400
430
Thermal Conductivity, W/m-K 28
15
Thermal Expansion, µm/m-K 15
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 5.0
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 5.1
1.8

Otherwise Unclassified Properties

Density, g/cm3 8.9
9.0
Embodied Carbon, kg CO2/kg material 5.9
8.9
Embodied Energy, MJ/kg 87
130
Embodied Water, L/kg 280
460

Common Calculations

Stiffness to Weight: Axial, points 8.6
14
Stiffness to Weight: Bending, points 19
22
Strength to Weight: Axial, points 15
19
Strength to Weight: Bending, points 16
18
Thermal Diffusivity, mm2/s 7.8
3.7
Thermal Shock Resistance, points 17
19

Alloy Composition

Carbon (C), % 0 to 0.15
2.0 to 3.0
Chromium (Cr), % 0
28 to 32
Cobalt (Co), % 0
43 to 59
Copper (Cu), % 62.3 to 71.3
0
Iron (Fe), % 0.25 to 1.5
0 to 3.0
Lead (Pb), % 0 to 0.010
0
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 28 to 32
0 to 3.0
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.5
0 to 2.0
Sulfur (S), % 0 to 0.020
0
Tungsten (W), % 0
11 to 13
Residuals, % 0 to 0.5
0