What is the difference between a duplex 2205 plate and the super duplex 2507 plate?
Duplex 2205 Plate and 2507 are a type of stainless steel with both austenite and ferrite phases in their microstructure. These duplex stainless steels are known for their high strength, excellent corrosion resistance, and good weldability, making them useful for a wide variety of applications, particularly in industries such as oil and gas, chemical processing, and marine environments. The main differences between the Duplex 2205 Plate and 2507 are their design and performance characteristics.
Composition:
Duplex 2205 Plate, also known as UNS S32205 or EN 1.4462, contains about 22% chromium, 5-6% nickel, 3% molybdenum, and other alloying elements such as nitrogen and manganese. Duplex 2507 Plate, or UNS S32750 or EN 1.4410, contains about 25% chromium, 7% nickel, 4% molybdenum, and other alloying elements such as nitrogen and copper.
Performance Characteristics:
Duplex 2205 Plate has good corrosion resistance in a wide range of environments, including chloride-containing environments, making it suitable for many applications. It has high strength and toughness, and its pitting and pitting corrosion resistance is better than standard austenitic stainless steel. On the other hand, the Super Duplex 2507 Plate has even higher corrosion resistance than the Duplex 2205 Plate, especially in aggressive environments such as chlorides, acids, and hydrogen sulfide. It also has high strength and improved resistance to pitting, pitting corrosion, and stress corrosion cracking.
Application:
Duplex 2205 Plate is commonly used in a wide range of applications such as chemical process equipment, oil and gas pipelines, heat exchangers, and marine applications. Duplex 2507 Plate is typically used in more demanding environments where high corrosion resistance and strength are required, such as offshore oil and gas platforms, chemical process equipment for highly corrosive media, and seawater applications.
In summary, both Duplex 2205 Plate and 2507 are duplex stainless steels with similar properties, while Duplex 2507 Plate has greater corrosion resistance, strength, and improved performance in aggressive environments than Duplex 2205 Plate, making it suitable for more demanding applications. However, specific environmental, and mechanical requirements and cost considerations must be considered when selecting the appropriate duplex stainless steel for a specific application. Consultation with a materials engineer or metallurgist is recommended to make the right choice.
We also deal in different types of sheets and plates such as Super Duplex S32760 Sheet, SMO 254 Plates & Stainless Steel 904L Plates.
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