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C75700 Nickel Silver vs. R31233 Cobalt

C75700 nickel silver belongs to the copper alloys classification, while R31233 cobalt belongs to the cobalt alloys. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C75700 nickel silver and the bottom bar is R31233 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
220
Elongation at Break, % 3.2 to 22
17
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 45
85
Tensile Strength: Ultimate (UTS), MPa 590 to 610
1020
Tensile Strength: Yield (Proof), MPa 470 to 580
420

Thermal Properties

Latent Heat of Fusion, J/g 200
320
Melting Completion (Liquidus), °C 1040
1350
Melting Onset (Solidus), °C 990
1330
Specific Heat Capacity, J/kg-K 390
440
Thermal Conductivity, W/m-K 40
12
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.1

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.6
Embodied Carbon, kg CO2/kg material 3.6
8.4
Embodied Energy, MJ/kg 56
110
Embodied Water, L/kg 310
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 120
140
Resilience: Unit (Modulus of Resilience), kJ/m3 930 to 1410
410
Stiffness to Weight: Axial, points 7.8
14
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 19 to 20
33
Strength to Weight: Bending, points 19
26
Thermal Diffusivity, mm2/s 12
3.2
Thermal Shock Resistance, points 22 to 23
25

Alloy Composition

Boron (B), % 0
0 to 0.015
Carbon (C), % 0
0.020 to 0.1
Chromium (Cr), % 0
23.5 to 27.5
Cobalt (Co), % 0
44.7 to 63.3
Copper (Cu), % 63.5 to 66.5
0
Iron (Fe), % 0 to 0.25
1.0 to 5.0
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.5
0.1 to 1.5
Molybdenum (Mo), % 0
4.0 to 6.0
Nickel (Ni), % 11 to 13
7.0 to 11
Nitrogen (N), % 0
0.030 to 0.12
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.050 to 1.0
Sulfur (S), % 0
0 to 0.020
Tungsten (W), % 0
1.0 to 3.0
Zinc (Zn), % 19.2 to 25.5
0
Residuals, % 0 to 0.5
0