Inconel 686 is a highly corrosion-resistant alloy used primarily for corrosion resistance and high temperature applications. Here are some more details about Inconel 686:
Specific Grades:
Common grades of Inconel 686 include UNS N06686, W.Nr. 2.4606 .
Specific Composition:
Inconel 686 is mainly composed of the following elements:
- Nickel (Ni): 58-63%.
- Chromium (Cr): 19.0-23.0 %.
- Molybdenum (Mo): 15.0-17.0 %
- Iron (Fe): 5.0% Max.
- Tungsten (W): 3.0-4.4 %
- Niobium (Nb): 1.0-3.0% contained
- Carbon (C): 0.010% Max
- Manganese (Mn), silicon (Si), phosphorus (P), sulphur (S) and titanium (Ti) are present in lower amounts.
Specific Gravity:
Inconel 686 has a specific gravity of approximately 8.9 g/cm³.
Production Standards:
Common production standards include ASTM B564, ASTM B166, ASTM B462 and ASTM B446.
Forging:
Inconel 686 can be processed into a variety of shapes and sizes by hot forging.
Heat Treating:
Inconel 686 can be subjected to Solution Annealing and Age Hardening at elevated temperatures to improve its material properties.
Cold Working:
Less specific information is available on Inconel 686 with respect to cold working, but conventional cold working methods such as cold rolling and cold drawing are usually applicable.
Corrosion Resistance:
Inconel 686 has excellent corrosion resistance and is particularly suited to the need for corrosion resistance to strong acids, bases, brines and high temperature corrosive media.
Mechanical properties:
Inconel 686 has good mechanical properties, including high strength and excellent fatigue resistance.
Properties:
Inconel 686 is characterised by excellent corrosion resistance, stress corrosion cracking resistance, oxidation resistance and wear resistance.
Weld Material Grades:
Commonly used welding material grades include ERNiCrMo-10, ENiCrMo-10 and AWS A5.14.
Uses:
Inconel 686 is widely used in chemical, petroleum, petrochemical, marine engineering, flue gas desulphurisation, sewage treatment and other fields. Specific uses include but are not limited to:
1. Chemical industry: Inconel 686 is commonly used in the manufacture of chemical equipment and vessels, such as reactors, evaporators, separators, storage tanks, etc., to cope with the treatment of various corrosive media.
2. Petroleum and petrochemical industry: Due to its excellent corrosion resistance, Inconel 686 is widely used in petroleum extraction, refining and storage equipment, such as oil well casing, petroleum pipelines, petrochemical equipment and so on.
3. Marine engineering: Inconel 686 shows good corrosion resistance in seawater environment and is commonly used in marine engineering fields, such as desalination equipment, seawater pumps, seawater coolers, offshore platforms, etc.
4. Flue gas desulphurisation (FGD) plant: Due to its acid resistance and high temperature stability, Inconel 686 can be used in various equipment in FGD plant, such as chimneys, absorption towers, nozzles, etc.
5. Sewage treatment: Inconel 686 is suitable for sewage treatment equipment, such as sewage treatment tanks, sewage pumps, etc., and is able to resist the erosion of corrosive wastewater and chemicals.
In short, Inconel 686 with its excellent corrosion resistance and mechanical properties, in a variety of requirements for high corrosion resistance and high-temperature stability of the industrial field is widely used.
Post time: Jul-29-2023
