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C77600 Nickel Silver vs. R30012 Cobalt

C77600 nickel silver belongs to the copper alloys classification, while R30012 cobalt belongs to the cobalt alloys. There are 24 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 C77600 nickel silver and the bottom bar is R30012 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Elongation at Break, % 30
1.0
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 43
86
Tensile Strength: Ultimate (UTS), MPa 630
830
Tensile Strength: Yield (Proof), MPa 320
650

Thermal Properties

Latent Heat of Fusion, J/g 180
320
Melting Completion (Liquidus), °C 830
1470
Melting Onset (Solidus), °C 790
1280
Specific Heat Capacity, J/kg-K 390
440
Thermal Expansion, µm/m-K 20
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 31
1.8

Otherwise Unclassified Properties

Density, g/cm3 7.9
8.8
Embodied Carbon, kg CO2/kg material 3.7
8.3
Embodied Energy, MJ/kg 60
120
Embodied Water, L/kg 310
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
7.7
Resilience: Unit (Modulus of Resilience), kJ/m3 470
960
Stiffness to Weight: Axial, points 7.9
14
Stiffness to Weight: Bending, points 20
23
Strength to Weight: Axial, points 22
26
Strength to Weight: Bending, points 21
22
Thermal Shock Resistance, points 20
23

Alloy Composition

Carbon (C), % 0
1.4 to 2.0
Chromium (Cr), % 0
27 to 32
Cobalt (Co), % 0
47.5 to 64.1
Copper (Cu), % 42 to 45
0
Iron (Fe), % 0 to 0.2
0 to 3.0
Lead (Pb), % 0 to 0.25
0
Manganese (Mn), % 0 to 0.25
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 12 to 14
0 to 3.0
Silicon (Si), % 0
0 to 2.0
Tin (Sn), % 0 to 0.15
0
Tungsten (W), % 0
7.5 to 9.5
Zinc (Zn), % 39.7 to 46
0
Residuals, % 0 to 0.5
0