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R31537 Cobalt vs. C74400 Nickel Silver

R31537 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 (6, in this case) are not shown.

For each property being compared, the top bar is R31537 cobalt and the bottom bar is C74400 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 14 to 23
43
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 87
39
Tensile Strength: Ultimate (UTS), MPa 1000 to 1340
350
Tensile Strength: Yield (Proof), MPa 590 to 940
120

Thermal Properties

Latent Heat of Fusion, J/g 320
180
Melting Completion (Liquidus), °C 1360
930
Melting Onset (Solidus), °C 1290
910
Specific Heat Capacity, J/kg-K 450
390
Thermal Conductivity, W/m-K 13
120
Thermal Expansion, µm/m-K 13
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
26
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
29

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.2
Embodied Carbon, kg CO2/kg material 8.1
2.9
Embodied Energy, MJ/kg 110
48
Embodied Water, L/kg 530
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 200
120
Resilience: Unit (Modulus of Resilience), kJ/m3 780 to 1990
63
Stiffness to Weight: Axial, points 15
7.4
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 33 to 44
12
Strength to Weight: Bending, points 26 to 32
14
Thermal Diffusivity, mm2/s 3.4
37
Thermal Shock Resistance, points 24 to 32
12

Alloy Composition

Carbon (C), % 0 to 0.14
0
Chromium (Cr), % 26 to 30
0
Cobalt (Co), % 58.9 to 69
0
Copper (Cu), % 0
62 to 66
Iron (Fe), % 0 to 0.75
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
2.0 to 4.0
Nitrogen (N), % 0 to 0.25
0
Silicon (Si), % 0 to 1.0
0
Zinc (Zn), % 0
29.6 to 36
Residuals, % 0
0 to 0.3