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C73500 Nickel Silver vs. R30003 Cobalt

C73500 nickel silver belongs to the copper alloys classification, while R30003 cobalt belongs to the cobalt alloys. There are 23 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 C73500 nickel silver and the bottom bar is R30003 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
210
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 47
83
Tensile Strength: Ultimate (UTS), MPa 380 to 580
970 to 1720

Thermal Properties

Latent Heat of Fusion, J/g 210
310
Melting Completion (Liquidus), °C 1140
1400
Melting Onset (Solidus), °C 1090
1440
Specific Heat Capacity, J/kg-K 400
450
Thermal Conductivity, W/m-K 36
13
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.5
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 35
95
Density, g/cm3 8.7
8.4
Embodied Carbon, kg CO2/kg material 4.0
8.0
Embodied Energy, MJ/kg 61
110
Embodied Water, L/kg 300
400

Common Calculations

Stiffness to Weight: Axial, points 8.0
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 12 to 19
32 to 57
Strength to Weight: Bending, points 13 to 18
26 to 38
Thermal Diffusivity, mm2/s 10
3.3
Thermal Shock Resistance, points 13 to 19
26 to 45

Alloy Composition


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Boron (B), % 0
0 to 0.1
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
39 to 41
Copper (Cu), % 70.5 to 73.5
0
Iron (Fe), % 0 to 0.25
10 to 20.5
Lead (Pb), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
1.5 to 2.5
Molybdenum (Mo), % 0
6.0 to 8.0
Nickel (Ni), % 16.5 to 19.5
14 to 16
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 1.2
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 5.7 to 13
0
Residuals, % 0 to 0.5
0