Super duplex UNS S32750 Plates is a popular alloy used in the oil and gas industry. It is a high-performance material known for its excellent corrosion resistance, superior strength, and high-quality performance in harsh environments. It is a perfect alternative to traditional stainless steel and standard duplex grades. This blog will discuss everything you need to know about Super duplex UNS S32750 Plates, from its chemical composition to its applications.
What is Super duplex UNS S32750 Plates
Super duplex UNS S32750 Plates, or 2507 or Alloy 2507, is a stainless steel alloy with excellent resistance to chlorine-related stress corrosion cracking (SRCC) and pitting. It has an estimated yield strength of over 900 MPa, making it significantly stronger than its super austenitic counterpart 316L. Furthermore, its ferritic-austenitic dual-phase nature makes it much more resistant to chloride ion corrosion than standard austenitic such as 304. Its higher chromium content also improves weldability compared to duplex steels like 2205. Despite its excellent properties and resistance against corrosion, UNS S32750 should be used with caution due to its high carbon levels, which can give rise to sensitization in certain environments. Overall, Super duplex UNS S32750 Plates is a highly useful material for applications requiring superior mechanical strength and exceptional corrosion resistance.
All You Need to Know About Super duplex UNS S32750 Plates
Chemical Composition of Super duplex UNS S32750 Plates:
Super duplex UNS S32750 Plates is duplex stainless steel, which comprises approximately equal parts of austenite and ferrite. It contains around 25% chromium, 7% nickel, 3.6% molybdenum, and 1.5% copper, making it highly resistant to chlorides, acids, and other corrosive agents. Additionally, this alloy offers excellent toughness, making it suitable for various applications.
Mechanical Properties of Super duplex UNS S32750 Plates:
Super duplex UNS S32750 Plates exhibits superior mechanical properties to other duplex grades, including standard duplex UNS S31803. It has a high tensile strength, yield strength and good impact strength. The high chromium, molybdenum, and nitrogen content enhance the material’s mechanical properties, making it ideal for harsh environments.
Applications of Super duplex UNS S32750 Plates:
Super duplex UNS S32750 Plates is often used in the marine industry due to its exceptional resistance to seawater. It is also suitable for use in the oil and gas industry, including offshore and onshore applications. The alloy is used in piping systems, pumps, heat exchangers, and other critical components in chemical processing, desalination plants, and pulp and paper industries. Additionally, the alloy is used in the construction sector, including bridges and buildings, due to its excellent corrosion resistance.
Weldability of Super duplex UNS S32750 Plates:
Super duplex UNS S32750 Plates is weldable, and the welding process must be conducted with utmost care to ensure the material’s integrity. Low heat input welding techniques such as gas tungsten arc or gas metal arc welding are essential to prevent the heat-affected zone’s formation. Heat treatment following welding is necessary to prevent the formation of carbides and sigma phases, which could reduce the material’s corrosion resistance.
Conclusion:
Super duplex UNS S32750 Plates is an alloy with superior mechanical properties and excellent resistance to corrosion and harsh environments. Its high-quality performance in several applications, including offshore, onshore, marine, and chemical processing, makes it a material of choice for various industries. Careful handling during welding and heat treatment ensures the material’s integrity and enhances its long-term performance. With all its unique properties, the Super duplex UNS S32750 Plates is a material to consider when looking for high-performance solutions.
