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G-CoCr28 Cobalt vs. C79200 Nickel Silver

G-CoCr28 cobalt belongs to the cobalt alloys classification, while C79200 nickel silver belongs to the copper alloys. There are 22 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 G-CoCr28 cobalt and the bottom bar is C79200 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
44
Tensile Strength: Ultimate (UTS), MPa 560
480 to 540

Thermal Properties

Latent Heat of Fusion, J/g 320
190
Maximum Temperature: Mechanical, °C 1200
170
Melting Completion (Liquidus), °C 1330
950
Melting Onset (Solidus), °C 1270
910
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 8.5
42
Thermal Expansion, µm/m-K 14
19

Otherwise Unclassified Properties

Base Metal Price, % relative 100
30
Density, g/cm3 8.1
8.4
Embodied Carbon, kg CO2/kg material 6.2
3.6
Embodied Energy, MJ/kg 84
56
Embodied Water, L/kg 440
310

Common Calculations

Stiffness to Weight: Axial, points 15
7.7
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 19
16 to 18
Strength to Weight: Bending, points 19
16 to 18
Thermal Diffusivity, mm2/s 2.2
13
Thermal Shock Resistance, points 14
16 to 18

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
59 to 66.5
Iron (Fe), % 9.7 to 24.5
0 to 0.25
Lead (Pb), % 0
0.8 to 1.4
Manganese (Mn), % 0 to 1.5
0 to 0.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 4.0
11 to 13
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
17.9 to 29.2
Residuals, % 0
0 to 0.5