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C79600 Nickel Silver vs. R31538 Cobalt

C79600 nickel silver belongs to the copper alloys classification, while R31538 cobalt belongs to the cobalt alloys. There are 26 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 C79600 nickel silver and the bottom bar is R31538 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Elongation at Break, % 15
13 to 23
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 43
86
Tensile Strength: Ultimate (UTS), MPa 480
1020 to 1360
Tensile Strength: Yield (Proof), MPa 300
580 to 930

Thermal Properties

Latent Heat of Fusion, J/g 180
320
Melting Completion (Liquidus), °C 930
1360
Melting Onset (Solidus), °C 880
1290
Specific Heat Capacity, J/kg-K 390
450
Thermal Conductivity, W/m-K 36
13
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
2.1

Otherwise Unclassified Properties

Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 3.5
8.1
Embodied Energy, MJ/kg 57
110
Embodied Water, L/kg 310
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 63
140 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 400
750 to 1920
Stiffness to Weight: Axial, points 7.8
15
Stiffness to Weight: Bending, points 20
24
Strength to Weight: Axial, points 17
34 to 45
Strength to Weight: Bending, points 17
27 to 32
Thermal Diffusivity, mm2/s 12
3.5
Thermal Shock Resistance, points 15
25 to 33

Alloy Composition

Carbon (C), % 0
0.15 to 0.35
Chromium (Cr), % 0
26 to 30
Cobalt (Co), % 0
58.7 to 68.9
Copper (Cu), % 43.5 to 46.5
0
Iron (Fe), % 0
0 to 0.75
Lead (Pb), % 0.8 to 1.2
0
Manganese (Mn), % 1.5 to 2.5
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 9.0 to 11
0 to 1.0
Nitrogen (N), % 0
0 to 0.25
Silicon (Si), % 0
0 to 1.0
Zinc (Zn), % 38.3 to 45.2
0
Residuals, % 0 to 0.5
0