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G-CoCr28 Cobalt vs. C75200 Nickel Silver

G-CoCr28 cobalt belongs to the cobalt alloys classification, while C75200 nickel silver belongs to the copper alloys. There are 22 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 G-CoCr28 cobalt and the bottom bar is C75200 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
120
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 83
47
Tensile Strength: Ultimate (UTS), MPa 560
400 to 660

Thermal Properties

Latent Heat of Fusion, J/g 320
210
Maximum Temperature: Mechanical, °C 1200
200
Melting Completion (Liquidus), °C 1330
1110
Melting Onset (Solidus), °C 1270
1070
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 8.5
33
Thermal Expansion, µm/m-K 14
18

Otherwise Unclassified Properties

Base Metal Price, % relative 100
33
Density, g/cm3 8.1
8.5
Embodied Carbon, kg CO2/kg material 6.2
4.1
Embodied Energy, MJ/kg 84
62
Embodied Water, L/kg 440
300

Common Calculations

Stiffness to Weight: Axial, points 15
8.0
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 19
13 to 21
Strength to Weight: Bending, points 19
14 to 20
Thermal Diffusivity, mm2/s 2.2
9.8
Thermal Shock Resistance, points 14
13 to 22

Alloy Composition

Carbon (C), % 0.050 to 0.25
0
Chromium (Cr), % 27 to 30
0
Cobalt (Co), % 48 to 52
0
Copper (Cu), % 0
63.5 to 66.5
Iron (Fe), % 9.7 to 24.5
0 to 0.25
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.5
0 to 0.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 4.0
16.5 to 19.5
Niobium (Nb), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0.5 to 1.5
0
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
12.7 to 20
Residuals, % 0
0 to 0.5