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EN 2.4964 Cobalt vs. C74500 Nickel Silver

EN 2.4964 cobalt belongs to the cobalt alloys classification, while C74500 nickel silver belongs to the copper alloys. There are 26 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 EN 2.4964 cobalt and the bottom bar is C74500 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
120
Elongation at Break, % 40
3.0 to 24
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 86
44
Tensile Strength: Ultimate (UTS), MPa 960
390 to 700
Tensile Strength: Yield (Proof), MPa 390
380 to 600

Thermal Properties

Latent Heat of Fusion, J/g 290
190
Melting Completion (Liquidus), °C 1630
1020
Melting Onset (Solidus), °C 1550
970
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 15
45
Thermal Expansion, µm/m-K 12
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
9.7

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.3
Embodied Carbon, kg CO2/kg material 9.8
3.4
Embodied Energy, MJ/kg 140
54
Embodied Water, L/kg 450
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
12 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 340
620 to 1540
Stiffness to Weight: Axial, points 13
7.7
Stiffness to Weight: Bending, points 21
19
Strength to Weight: Axial, points 28
13 to 23
Strength to Weight: Bending, points 23
14 to 21
Thermal Diffusivity, mm2/s 3.9
14
Thermal Shock Resistance, points 25
13 to 23

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 66.5
Iron (Fe), % 0 to 3.0
0 to 0.25
Lead (Pb), % 0
0 to 0.1
Manganese (Mn), % 0 to 2.0
0 to 0.5
Nickel (Ni), % 9.0 to 11
9.0 to 11
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
21.2 to 27.5
Residuals, % 0
0 to 0.5