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EN 2.4964 Cobalt vs. C71500 Copper-nickel

EN 2.4964 cobalt belongs to the cobalt alloys classification, while C71500 copper-nickel belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 2.4964 cobalt and the bottom bar is C71500 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
140
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 86
52
Tensile Strength: Ultimate (UTS), MPa 960
380 to 620

Thermal Properties

Latent Heat of Fusion, J/g 290
230
Melting Completion (Liquidus), °C 1630
1240
Melting Onset (Solidus), °C 1550
1170
Specific Heat Capacity, J/kg-K 400
400
Thermal Conductivity, W/m-K 15
28
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
4.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
4.7

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
74
Embodied Water, L/kg 450
280

Common Calculations

Stiffness to Weight: Axial, points 13
8.6
Stiffness to Weight: Bending, points 21
19
Strength to Weight: Axial, points 28
12 to 19
Strength to Weight: Bending, points 23
13 to 18
Thermal Diffusivity, mm2/s 3.9
7.7
Thermal Shock Resistance, points 25
12 to 20

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 58
0
Copper (Cu), % 0
63.5 to 70.6
Iron (Fe), % 0 to 3.0
0.4 to 1.0
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 2.0
0 to 1.0
Nickel (Ni), % 9.0 to 11
29 to 33
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.015
0
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5