Common Applications of Alloy 20 Pipe

Common Applications of Alloy 20 Pipe

Are you looking for an efficient way to transfer corrosive elements through piping? What type of alloy is best suited for your application? Alloy 20 pipe may be the solution for you. This specialty alloy is resistant to many substances, making it highly versatile and suitable for many industrial applications. In this blog post, we’ll explore some of the most common uses for alloy 20 pipes so that you can assess whether this solution fits your needs. Read on to learn more about these specialized pipes and how they could revolutionize your project.

Applications of Alloy 20 Pipe

Chemical Processing Plants

Alloy 20 is a highly corrosion-resistant nickel, chromium, iron, and molybdenum alloy. This combination makes it ideal for use in chemical processing plants where highly corrosive chemicals are present. The most common applications of Alloy 20 pipes include those used to transport ultra-pure liquids or gases through heat exchangers, distillation columns, and evaporators and those used to transport pollutants from one location to another. In addition, Alloy 20 pipe can be used with stronger acids such as hydrochloric and phosphoric acid due to its superior resistance to pitting corrosion and stress-corrosion cracking. Furthermore, it offers good weldability, simplifying the fabrication process when joining straight pipe sections.

Oil & Gas Industry

Alloy 20 pipe is an austenitic stainless steel alloy with copper, nickel, and molybdenum, which are ideal for use in the oil and gas industry due to its excellent corrosion resistance. This material provides superior chemical resistance to nitric acid with great mechanical properties making it a popular choice for many applications in this sector. It is also highly resistant to pitting and crevice corrosion, stress-corrosion cracking, and organic acids, making it safe for conventional and subsea operations. The low carbon content of Alloy 20 reduces sensitization while still providing maximum localized strength, ensuring optimal performance even in extreme temperatures and pressures. These qualities have enabled its widespread use, such as Instrumentation tubing systems, heat exchangers, tanks used for storage & treatment of chemicals & gases, offshore piping systems, etc.

Food and Beverage Industry

Alloy 20 pipe is increasingly used in the food and beverage industry, as its unique properties make it ideal for hygienic production. It resists stress corrosion cracking due to its high nickel content and component such as molybdenum, silicon, manganese, etc. Its inherent strength makes it suitable for higher temperatures than other alloys, making it perfect for piping carrying hot liquids or steam. Its good resistance to acids makes it suitable for hoppers and conveyors in both sweet and sour production systems. It can also endure settings where alkalinity levels are high, making Alloy 20 pipes ideal for production settings dealing with dairy products like cheese processing. All of these features make Alloy 20 an excellent choice when constructing equipment or facilities that regularly handle various food products.

Pharmaceuticals and Cosmetics

Finally, Alloy 20 is often used in the pharmaceutical and cosmetics industries, where it can withstand the harsh chemicals used in these manufacturing processes. It also has excellent formability, allowing it to be easily shaped and welded into various configurations. This makes it an excellent choice for process piping, where customized shapes and designs are often necessary.

Marine Engineering

Marine engineering is another industry where Alloy 20 pipe is commonly used due to its high resistance to corrosion and cracking. Marine applications can often be especially harsh due to exposure to seawater and other corrosive substances. In these applications, Alloy 20 can resist the highly corrosive conditions found in marine environments and remains strong even when exposed to high-stress levels.


Undoubtedly, Alloy 20 pipe is a versatile and highly valuable material in various applications. Whether used for chemical processing, oil and gas, food and beverage, pharmaceuticals or marine engineering, this super-austenitic alloy has become a go-to solution for many industries due to its resistance to corrosion and cracking. So, if you need corrosion-resistant piping material, Alloy 20 is worth considering!