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G-CoCr28 Cobalt vs. C74400 Nickel Silver

G-CoCr28 cobalt belongs to the cobalt alloys classification, while C74400 nickel silver belongs to the copper 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 G-CoCr28 cobalt and the bottom bar is C74400 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Elongation at Break, % 6.7
43
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 83
39
Tensile Strength: Ultimate (UTS), MPa 560
350
Tensile Strength: Yield (Proof), MPa 260
120

Thermal Properties

Latent Heat of Fusion, J/g 320
180
Maximum Temperature: Mechanical, °C 1200
140
Melting Completion (Liquidus), °C 1330
930
Melting Onset (Solidus), °C 1270
910
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 8.5
120
Thermal Expansion, µm/m-K 14
20

Otherwise Unclassified Properties

Base Metal Price, % relative 100
25
Density, g/cm3 8.1
8.2
Embodied Carbon, kg CO2/kg material 6.2
2.9
Embodied Energy, MJ/kg 84
48
Embodied Water, L/kg 440
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
120
Resilience: Unit (Modulus of Resilience), kJ/m3 160
63
Stiffness to Weight: Axial, points 15
7.4
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 19
12
Strength to Weight: Bending, points 19
14
Thermal Diffusivity, mm2/s 2.2
37
Thermal Shock Resistance, points 14
12

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
62 to 66
Iron (Fe), % 9.7 to 24.5
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 4.0
2.0 to 4.0
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
29.6 to 36
Residuals, % 0
0 to 0.3