What is Alloy 28 Tubing? Properties, Uses and Composition

What is Alloy 28 Tubing? Properties, Uses and Composition

Alloy 28 is a corrosion-resistant material used in various industries, including chemical processing, petrochemicals, and pharmaceuticals. This alloy is highly corrosion-resistant, even in harsh environments that contain acids and caustic materials. Alloy 28 tubing is essential in these industries as it offers superior protection against pollutants and corrosion while maintaining high quality and long-lasting durability. In this blog post, we will explore the properties, uses, and composition of Alloy 28 tubing.

What is Alloy 28 Tubing?

Alloy 28 Tubing is a special alloy of nickel, chromium, and molybdenum. It is extremely resistant to corrosion in many different environments and has high ductility, making it an excellent choice for applications involving pressurized gas-transport systems. Its high resistance to chloride-ion-related stress corrosion cracking makes it ideal for seawater cooling systems. Its resistance to various other corrosive elements also makes it useful in food processing equipment and chemical reactions.

In addition, its excellent mechanical strength allows it to be used for structural components such as bolted flanges and valves in industrial machinery. Lastly, its thermal properties allow Alloy 28 Tubing to maintain its shape over long-term periods at elevated temperatures, which makes it ideal for petrochemical pipelines where temperature fluctuations are common.


Alloy 28 combines nickel, molybdenum, and chromium with trace amounts of iron, copper, and tungsten. This composition creates excellent corrosion resistance, especially in acidic environments. The high nickel content also gives Alloy 28 tubing a higher resistance to stress corrosion cracking and pitting.


Alloy 28 tubing has several properties that make it ideal for harsh environments. One of the most notable properties of Alloy 28 tube is its excellent corrosion resistance. This tubing can withstand exposure to acids, bases, and other aggressive chemicals, making it an ideal choice for chemical processing and other industries that handle corrosive materials. Additionally, Alloy 28 tubing has high strength and durability, which allows it to withstand high temperatures and pressures.


Heat Exchangers

Industries often use Alloy 28 tubing in heat exchangers due to its high temperature and corrosion resistance. The tubing can withstand temperatures up to 1,000°F, making it an ideal choice for applications that require a reliable heat transfer medium. The tubing’s corrosion resistance makes it suitable for use in systems with acidic or alkaline solutions.

Pressure Vessels

Alloy 28 tubing is also commonly used in pressure vessels due to its strength and durability. The material has a tensile strength of over 80,000 psi, making it capable of withstanding high-pressure levels without deforming or becoming brittle. This makes it an ideal choice for applications such as boilers and tanks that must be able to contain large amounts of pressure without failing.

Chemical Processing

Alloy 28 tubes are also often used in chemical processing due to its excellent corrosion resistance and ability to withstand high temperatures. The material can resist corrosion from various chemicals, including acids and alkalis, making it an ideal choice for applications where exposure to corrosive substances is a concern. The material’s high-temperature resistance makes it suitable for use in systems involving heated liquids or gases.

Marine Applications

Because of its excellent corrosion resistance and strength, industries often use Alloy 28 tubing in marine applications such as shipbuilding and offshore drilling operations. The material’s ability to resist corrosion from saltwater makes it an ideal choice for components that will face exposure to the harsh environment of the ocean. The material’s strength also enables its use in structural components such as frames and supports without the fear of failure due to fatigue or stress fractures caused by vibrations or impacts from waves or other sources.

Medical Devices

Due to its non-toxic properties and ability to resist corrosion from bodily fluids such as blood and urine, medical devices often use Alloy 28 tubing. The material’s ability to resist corrosion means that medical devices made from Alloy 28 will not corrode when exposed to these fluids, allowing them to remain safe and effective throughout their lifetime without needing frequent maintenance or replacement parts.


While this products possesses durability, it is essential to undertake proper maintenance to increase its longevity. Regular cleaning and routine inspections can help identify problems early before they result in significant failure or damage. Proper storage and transportation of Alloy 28 tubing are also vital to avoid contamination or exposure to harmful chemicals that can corrode it.


In conclusion, Alloy 28 tubing is an excellent choice for harsh environments requiring high corrosion and stress resistance. Its unique composition, properties, and applications make it an indispensable material in various industries. However, it is essential to maintain proper care and maintenance of Alloy 28 tube to ensure its long-lasting performance. The right storage, handling, and cleaning techniques can help maintain the tubing’s quality, which ensures effective long-term operation while maximizing its durability and performance.