Super Duplex 2507 Flanges

Super Duplex 2507 flanges are specialized components made from a high-performance stainless steel alloy known as Super Duplex 2507, which is primarily used in extremely demanding environments. Super Duplex 2507 is a combination of austenitic and ferritic stainless steels, which provides excellent mechanical strength and corrosion resistance, especially in harsh conditions such as marine or chemical industries.

Key Features of Super Duplex 2507 Flanges:

1. High Corrosion Resistance:

   • Pitting and Crevice Corrosion: The high chromium, molybdenum, and nitrogen content in 2507 makes it highly resistant to pitting and crevice corrosion, particularly in environments containing chlorides.
   • Stress Corrosion Cracking: It performs exceptionally well against chloride-induced stress corrosion cracking.

2. Strength:

   • Super Duplex 2507 flanges exhibit higher tensile and yield strength than most other stainless steels, allowing them to handle extreme pressure and temperature fluctuations.

3. Temperature Range:

   • The alloy can operate in temperatures ranging from -50°C to 300°C, making it suitable for both cryogenic and high-temperature applications.

4. Cost Efficiency:

   • Due to its superior strength, thinner sections of Super Duplex 2507 can be used in construction, reducing the overall weight and cost of materials.

Common Applications:

• Oil and Gas Industry: Used in offshore rigs, piping systems, and subsea equipment due to their ability to withstand seawater and high-pressure environments.
• Chemical Processing: Suitable for applications involving corrosive chemicals like sulfuric or hydrochloric acid.
• Desalination Plants: Ideal for brine and saltwater exposure in desalination equipment.
• Heat Exchangers: Used in heat exchanger components where corrosion resistance and strength are critical.

Types of Super Duplex 2507 Flanges:

• Weld Neck Flanges: Used for high-pressure applications where reliable joints are required.
• Slip-On Flanges: Common in low-pressure environments.
• Blind Flanges: Used to close the ends of piping systems or vessels.
• Socket Weld Flanges: Often employed in small, high-pressure pipes.
• Lap Joint Flanges: Ideal for systems that require frequent dismantling for inspection or maintenance.

These flanges are available in various sizes and pressure ratings, adhering to international standards like ASTM A182 or ASME SA182.

Conclusion:

Super Duplex 2507 flanges are a preferred choice for applications requiring superior corrosion resistance, high strength, and long-term durability, particularly in challenging environments such as oil, gas, and marine industries.