Introduction
Resistant alloys are increasingly sought after in the industrial furnace industry due to their ability to withstand extreme temperatures, corrosion, oxidation and other environmental elements. This makes them ideal for a range of applications, including combustion chambers, heat exchangers and high temperature process equipment, as well as for heat recovery steam generators and other boiler components. In this article, we will discuss the different types of resistant alloys and explain how they are used in industrial furnaces.
Types of Resistant Alloys
The main types of resistant alloys used in industrial furnaces are cobalt, nickel, chromium and iron based alloys. Each of these alloys has unique properties which make them suitable for different applications, such as providing high temperature strength, oxidation and corrosion resistance and tremendous thermal shock resistance.
Cobalt-based alloy is an extremely heat resistant alloy that can withstand temperatures up to 1450°C (2642°F). It is generally more expensive than other resistant alloys and is typically used in turbines, power plants, and other high-temperature applications. These alloys are also often used in aircraft engines, heat exchangers and furnaces.
Nickel-based alloys have good strength, corrosion and oxidation resistance, and are often used in boilers, furnace components and other equipment in chemical and petrochemical plants. It can withstand temperatures up to 1250°C (2282°F) and is particularly suitable for applications that require frequent heating and cooling cycles.
Chromium-based alloys combine good tensile strength, high hardness and excellent oxidation resistance - making them suitable for use in high-temperature applications such as boilers, reformers, heaters and turbine blades. These alloys can resist temperatures up to 1150°C (2102°F).
Iron-based alloys have excellent strength, toughness and weldability and are often used in applications that involve high heat cycles and thermal shock. They are commonly used in combustion chambers, heat exchangers and furnaces, and can stand temperatures up to 1050°C (1922°F).
Uses of Resistant Alloys in Industrial Furnaces
Resistant alloys are used in a wide range of industrial furnaces to provide protection against extreme temperatures and other environmental elements. The most common application of resistant alloys in industrial furnaces is for combustion chambers, which are often lined with cobalt- or nickel-based alloys to provide corrosion, oxidation and wear resistance.
Heat exchangers and boilers also often require resistant alloys, as these components encounter temperatures that can exceed the limit of regular materials. In these applications, both cobalt- and nickel-based alloys are often used due to their excellent high temperature strength and corrosion resistance. Chromium- and iron-based alloys are also used, although the properties of the alloys determine which is suitable for the particular application.
Conclusion
Resistant alloys are increasingly used in industrial furnaces due to their ability to withstand extreme temperatures, corrosion and oxidation. The main types of resistant alloys used in these applications are cobalt, nickel, chromium and iron-based alloys, each of which has unique properties that make them suitable for different applications. These alloys are used in combustion chambers, heat exchangers, boilers and other equipment, and provide protection and durability in high temperature environments.
