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C77400 Nickel Silver vs. R30016 Cobalt

C77400 nickel silver belongs to the copper alloys classification, while R30016 cobalt belongs to the cobalt alloys. There are 24 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is C77400 nickel silver and the bottom bar is R30016 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Elongation at Break, % 25
8.4
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 42
85
Tensile Strength: Ultimate (UTS), MPa 570
1010
Tensile Strength: Yield (Proof), MPa 250
580

Thermal Properties

Latent Heat of Fusion, J/g 170
320
Melting Completion (Liquidus), °C 810
1360
Melting Onset (Solidus), °C 770
1270
Specific Heat Capacity, J/kg-K 390
450
Thermal Expansion, µm/m-K 21
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 31
2.0

Otherwise Unclassified Properties

Density, g/cm3 7.9
8.5
Embodied Carbon, kg CO2/kg material 3.5
7.7
Embodied Energy, MJ/kg 57
110
Embodied Water, L/kg 320
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
72
Resilience: Unit (Modulus of Resilience), kJ/m3 290
770
Stiffness to Weight: Axial, points 7.7
14
Stiffness to Weight: Bending, points 20
24
Strength to Weight: Axial, points 20
33
Strength to Weight: Bending, points 19
26
Thermal Shock Resistance, points 18
24

Alloy Composition

Carbon (C), % 0
0.9 to 1.4
Chromium (Cr), % 0
28 to 32
Cobalt (Co), % 0
49.6 to 66.9
Copper (Cu), % 43 to 47
0
Iron (Fe), % 0
0 to 3.0
Lead (Pb), % 0 to 0.2
0
Manganese (Mn), % 0
0.5 to 2.0
Molybdenum (Mo), % 0
0 to 1.5
Nickel (Ni), % 9.0 to 11
0 to 3.0
Silicon (Si), % 0
0.2 to 2.0
Tungsten (W), % 0
3.5 to 5.5
Zinc (Zn), % 41.3 to 48
0
Residuals, % 0 to 0.5
0