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C77100 Nickel Silver vs. R30075 Cobalt

C77100 nickel silver belongs to the copper alloys classification, while R30075 cobalt belongs to the cobalt alloys. There are 24 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 C77100 nickel silver and the bottom bar is R30075 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210 to 250
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 45
82 to 98
Tensile Strength: Ultimate (UTS), MPa 600
780 to 1280
Tensile Strength: Yield (Proof), MPa 540
480 to 840

Thermal Properties

Latent Heat of Fusion, J/g 180
320
Melting Completion (Liquidus), °C 990
1360
Melting Onset (Solidus), °C 950
1290
Specific Heat Capacity, J/kg-K 390
450
Thermal Conductivity, W/m-K 40
13
Thermal Expansion, µm/m-K 20
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.1

Otherwise Unclassified Properties

Density, g/cm3 8.1
8.4
Embodied Carbon, kg CO2/kg material 3.5
8.1
Embodied Energy, MJ/kg 56
110
Embodied Water, L/kg 310
530

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 1280
560 to 1410
Stiffness to Weight: Axial, points 7.8
14 to 17
Stiffness to Weight: Bending, points 20
24 to 25
Strength to Weight: Axial, points 21
26 to 42
Strength to Weight: Bending, points 20
22 to 31
Thermal Diffusivity, mm2/s 13
3.5
Thermal Shock Resistance, points 19
21 to 29

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Boron (B), % 0
0 to 0.010
Carbon (C), % 0
0 to 0.35
Chromium (Cr), % 0
27 to 30
Cobalt (Co), % 0
58.7 to 68
Copper (Cu), % 52 to 56
0
Iron (Fe), % 0
0 to 0.75
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0 to 0.9
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 9.0 to 12
0 to 0.5
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
0 to 0.1
Tungsten (W), % 0
0 to 0.2
Zinc (Zn), % 30.6 to 39
0
Residuals, % 0 to 0.5
0