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C77400 Nickel Silver vs. G-CoCr28 Cobalt

C77400 nickel silver belongs to the copper alloys classification, while G-CoCr28 cobalt belongs to the cobalt alloys. There are 24 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 C77400 nickel silver and the bottom bar is G-CoCr28 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 25
6.7
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 42
83
Tensile Strength: Ultimate (UTS), MPa 570
560
Tensile Strength: Yield (Proof), MPa 250
260

Thermal Properties

Latent Heat of Fusion, J/g 170
320
Maximum Temperature: Mechanical, °C 130
1200
Melting Completion (Liquidus), °C 810
1330
Melting Onset (Solidus), °C 770
1270
Specific Heat Capacity, J/kg-K 390
470
Thermal Expansion, µm/m-K 21
14

Otherwise Unclassified Properties

Base Metal Price, % relative 25
100
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 3.5
6.2
Embodied Energy, MJ/kg 57
84
Embodied Water, L/kg 320
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
31
Resilience: Unit (Modulus of Resilience), kJ/m3 290
160
Stiffness to Weight: Axial, points 7.7
15
Stiffness to Weight: Bending, points 20
24
Strength to Weight: Axial, points 20
19
Strength to Weight: Bending, points 19
19
Thermal Shock Resistance, points 18
14

Alloy Composition

Carbon (C), % 0
0.050 to 0.25
Chromium (Cr), % 0
27 to 30
Cobalt (Co), % 0
48 to 52
Copper (Cu), % 43 to 47
0
Iron (Fe), % 0
9.7 to 24.5
Lead (Pb), % 0 to 0.2
0
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 9.0 to 11
0 to 4.0
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0.5 to 1.5
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 41.3 to 48
0
Residuals, % 0 to 0.5
0