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G-CoCr28 Cobalt vs. C73500 Nickel Silver

G-CoCr28 cobalt belongs to the cobalt alloys classification, while C73500 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 C73500 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
130
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 83
47
Tensile Strength: Ultimate (UTS), MPa 560
380 to 580

Thermal Properties

Latent Heat of Fusion, J/g 320
210
Maximum Temperature: Mechanical, °C 1200
220
Melting Completion (Liquidus), °C 1330
1140
Melting Onset (Solidus), °C 1270
1090
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 8.5
36
Thermal Expansion, µm/m-K 14
17

Otherwise Unclassified Properties

Base Metal Price, % relative 100
35
Density, g/cm3 8.1
8.7
Embodied Carbon, kg CO2/kg material 6.2
4.0
Embodied Energy, MJ/kg 84
61
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
12 to 19
Strength to Weight: Bending, points 19
13 to 18
Thermal Diffusivity, mm2/s 2.2
10
Thermal Shock Resistance, points 14
13 to 19

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
70.5 to 73.5
Iron (Fe), % 9.7 to 24.5
0 to 0.25
Lead (Pb), % 0
0 to 0.1
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
5.7 to 13
Residuals, % 0
0 to 0.5