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Alloy 20 Tubing is an alloy that contains nickel, chromium, and molybdenum. These elements comprise the majority of the chemical composition of the material; however, other metallic compounds are also found in small amounts. Nickel creates excellent strength and resistance to corrosion and oxidation, making this alloy ideal for various industrial applications. The chromium helps resist stress and crack, while the molybdenum provides excellent wear, creep, and fatigue resistance. Combining these elements creates an incredibly superior form of tubing that is a favourite choice among many engineers.

Nickel Alloy 20 Tubing has a variety of uses due to its excellent corrosion resistance and relatively lower cost than other nickel alloys. Its outstanding properties make it ideal for highly corrosive industrial applications, such as waste-processing plants, airports, and refineries. Alloy 20 tubing also provides superior resistance to pitting caused by chloride stress-corrosion cracking. In addition, the tubing's electrical resistivity is more significant than even mild steel, making it an excellent choice for thermal and electrical insulation purposes. With its high-temperature tolerance and impressive fatigue strength, many choose Alloy 20 tubing for sanitary uses. Whether used for industrial or hygienic purposes, nickel Alloy 20 tubing will provide reliable performance and excellent durability in any application.

Chemical Composition of Nickel Alloy 20 Tubing

A comprehensive analysis is presented in the table, detailing the essential elements shaping the chemical composition of Nickel Alloy 20 Tubing.

















8xC-1.0 max

.07 max

2.0 max

.045 max

.035 max

1.0 max

This data on composition enables us to make informed decisions to enhance our performance effectively and efficiently.

Physical Properties of Nickel Alloy 20 Tubing

The table provides a detailed breakdown of key elements in the Physical Properties of Nickel Alloy 20

Properties  Metric    Imperial
  Density8.05 g/cm3  0.291 lb/in3

It is evident that the Nickel Alloy 20 Tubing Physical Properties offers a balance of key elements to achieve specific mechanical and structural properties for demanding applications.

Mechanical Properties of Nickel Alloy 20 Tubing

The table offers an in-depth analysis of essential elements in the Mechanical Properties of Alloy 20 Tubing.




Tensile strength (annealed)620 MPa89900 psi
Yield strength (annealed)300 MPa43500 psi
Elongation at break (annealed)41%41%

This data on Mechanical Properties enables us to make informed decisions to enhance our performance effectively.

Benefits of Alloy 20 Tubing

Alloy 20 tubing offers several benefits, primarily due to its unique combination of alloying elements. Here are some of the key advantages of Alloy 20 tubing:

  • Corrosion Resistance: One of the primary benefits of Alloy 20 tubing is its exceptional corrosion resistance in a wide range of corrosive environments. It is resistant to various acids, including sulfuric acid, phosphoric acid, and nitric acid. This makes it suitable for applications in chemical processing, pharmaceuticals, and other industries where corrosion is a significant concern.
  • Sulfuric Acid Resistance: Alloy 20 Tubing is particularly known for its outstanding resistance to sulfuric acid. This property makes it an excellent choice for applications where exposure to sulfuric acid is common, such as in sulfuric acid production, petroleum refining, and flue gas desulfurization systems.
  • Chloride Stress Corrosion Cracking Resistance: Alloy 20 Tubing exhibits resistance to chloride stress corrosion cracking, making it suitable for applications in marine environments and other settings where exposure to chlorides is a concern.
  • Excellent Mechanical Properties: Alloy 20 Tubing maintains good mechanical properties at both elevated and room temperatures. This includes high tensile strength, yield strength, and hardness, contributing to the overall durability and performance of the material.
  • Versatility: Alloy 20 Tubing is a versatile material readily fabricated into various forms, including tubing, pipes, fittings, and flanges. This versatility makes it adaptable to various applications across different industries.
  • High Temperature Resistance: Alloy 20 Tubing retains its corrosion resistance and mechanical properties at elevated temperatures. This makes it suitable for applications with high temperatures, such as chemical processing and power generation.
  • Ease of Fabrication: Alloy 20 Tubing is relatively easy to fabricate, allowing for the creation of complex shapes and configurations. This ease of fabrication contributes to its widespread use in producing various components for different industries.
  • Longevity and Durability: The corrosion resistance and overall stability of Alloy 20 Tubing contribute to the longevity and durability of equipment made from this material. This can result in reduced maintenance requirements and longer service life.

 Applications of Alloy 20 Tubing 

Alloy 20 tubing is known for its excellent resistance to a wide range of corrosive environments, making it suitable for various applications in industries where corrosion resistance is crucial. Here are some common applications of Alloy 20 tubing:

  1. Chemical Processing Industry: Alloy 20 tubing is widely used in chemical processing plants where corrosive chemicals, acids, and solvents are handled. Its resistance to sulfuric acid is particularly notable, making it suitable for sulfuric acid production and handling applications.
  2. Pharmaceutical Industry: Alloy 20 Tubing is used in the pharmaceutical industry to manufacture drugs and other pharmaceutical products where corrosion resistance is essential. It is often used to produce acids, pharmaceutical intermediates, and other chemicals.
  3. Food Processing: Alloy 20 tubing is utilized in the food processing industry to handle and transport corrosive substances such as citric acid and other food-grade acids. Its corrosion resistance is crucial to maintaining product purity in food processing applications.
  4. Petroleum Refining: In the petroleum refining industry, Alloy 20 tubing is employed in various processes where resistance to corrosion from sulfur-containing compounds is essential. It is used in applications such as sulfuric acid alkylation units.
  5. Power Generation: Alloy 20 Tubing is used in power plants, especially in areas where flue gas desulfurization (FGD) processes are employed. The alloy's resistance to sulfuric acid and other corrosive elements makes it suitable for such applications.

Alloy 20 tubing offers corrosion resistance, mechanical strength, and versatility, making it a preferred choice for industries where exposure to corrosive environments is a significant concern.

FAQ's for Nickel Alloy 20 Tubing

Nickel Alloy Alloy 20 Tubing offers superior pressure resistance and long - term performance.

Yes, Nickel Alloy Alloy 20 Tubing provides excellent cost-effectiveness for industrial applications.

Industries such as chemical processing, food processing, and oil & gas will all benefit from using Nickel Alloy Alloy 20 tubing in their applications.

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