Alloy 20 is super austenitic stainless steel widely used in many industrial applications. The high nickel, chromium, and molybdenum content of Alloy 20 provides excellent corrosion resistance and makes it one of the best options for use in highly corrosive environments. One of the most common forms of Alloy 20 is plate, and in this blog post, we’ll take a closer look at everything you need to know about Alloy 20 plate.
What is Alloy 20 Plate?
Alloy 20 Plate is a nickel-iron-chromium alloy designed to have excellent corrosion resistance in both acid and alkaline environments. It also has excellent stress corrosion cracking resistance, especially when stressed with hot sulfurous acid. The alloy’s high chromium content allows it to withstand the corrosive effects of acids, while its molybdenum and nitrogen contents provide improved pitting resistances. Moreover, Alloy 20 Plate has outstanding mechanical properties at temperatures up to 1000°F, making it an ideal choice for applications requiring this type of temperature and pressure capability.
Properties of Alloy 20 Plate
Alloy 20 plate is a highly versatile material used in various applications. The high level of nickel, chromium, and molybdenum in the alloy provides excellent resistance to pitting, crevice corrosion, and the effects of sulfuric acid. In addition, Alloy 20 can also withstand chloride-induced stress corrosion cracking, making it a popular choice for use in the chemical processing industry.
Uses of Alloy 20 Plate
Alloy 20 plate is commonly used in a wide range of applications. It is often used in the chemical processing industry, where it provides exceptional resistance to corrosion and is especially useful in applications involving sulfuric acid. It is also commonly used in manufacturing equipment for the pharmaceutical, food processing, and pulp and paper industries.
Fabrication of Alloy 20 Plate
Alloy 20 plate can be easily fabricated to meet the specific needs of a particular application. It can be welded using standard welding techniques such as TIG and MIG. Alloy 20 plate can also be easily formed, hot or cold worked, and machined. However, due to its high strength and toughness, special care must be taken when machining Alloy 20 to prevent tooling damage and work hardening.
Maintenance of Alloy 20 Plate
Maintaining the Alloy 20 plate is relatively easy. Routine cleanings should be performed using mild detergents and warm water. The affected area should be immediately cleaned and treated with the appropriate chemicals if corrosion occurs. Routine inspections should be conducted to detect any signs of corrosion, deformation, or wear.
Tips for purchasing Alloy 20 Plate
When purchasing an Alloy 20 plate, several important factors must be considered. First, ensuring that the alloy meets the required specifications for the intended application is important. Second, you should consider the size and thickness of the plate needed. Finally, selecting a trusted supplier who can provide high-quality material that meets all necessary standards and certifications is important.
Conclusion
Alloy 20 plate is an excellent choice for applications requiring exceptional corrosion resistance. Due to its high level of nickel, chromium, and molybdenum provides excellent protection against pitting, crevice corrosion, and the effects of sulfuric acid. The alloy is highly versatile, making it popular in various industries such as chemical processing, pharmaceuticals, pulp, and paper. When purchasing an Alloy 20 plate, it is important to consider the size, required specifications, and a trusted supplier to ensure the material meets all necessary standards and certifications. With proper care and maintenance, Alloy 20 plate can provide many years of reliable service.
