ASTM A815 UNS S32750 Super Duplex Stainless Steel Fittings 90 Degree LR Elbow

ASTM A815 Super Duplex Steel UNS S32750 Pipe Fitting 90 Degree LR Elbow

The ASTM A815 Super Duplex Steel UNS S32750 Pipe Fitting 90 Degree Long Radius (LR) Elbow is a critical component used in piping systems for redirecting flow while maintaining pressure and preventing turbulence. Here are some key features of this specific fitting:

1. Material Composition: Made from UNS S32750, it includes high levels of chromium and molybdenum, providing excellent corrosion resistance and strength. 

2. Design: The 90-degree angle allows for a change in flow direction, crucial in piping systems where space constraints exist. The long radius design helps to minimize turbulence and pressure drop compared to short radius elbows. 

3. Standards Compliance: Manufactured according to ASTM A815, which covers the requirements for various grades of duplex and super duplex stainless steel fittings, ensuring quality and reliability in service. 

4. Pressure Ratings: Suitable for high-pressure applications, making it an ideal choice for industries like oil and gas, chemical processing, and marine environments. 

5. Temperature Tolerance: Super duplex steel exhibits good performance at elevated temperatures, making it versatile for a wide range of operational conditions. 

ASTM A815 UNS S32750 Pipe Fittings Equivalent Grades

ASTM A815 UNS S32750 Pipe Fittings Chemical Compositions

ASTM A815 UNS S32750 Pipe Fittings Mechanical Properties

ASTM A815 UNS S32750 Pipe Fittings Mechanical Properties

Grade UNS S32750, also known as Super Duplex Stainless Steel, is known for its excellent properties. Here are some advantages compared to other materials:

1. Corrosion Resistance: It offers superior corrosion resistance in aggressive environments, such as those containing chlorides, making it ideal for chemical processing and marine applications. 

2. Strength and Toughness: UNS S32750 has higher strength compared to regular duplex and austenitic stainless steels. This allows for thinner walls and reduced weight while maintaining structural integrity. 

3. Pitting Resistance: Its high chromium and molybdenum content enhances its resistance to pitting and crevice corrosion, which is crucial in certain industrial conditions. 

4. Impact Strength: It maintains good impact strength at both room and sub-zero temperatures, outperforming many other stainless steel grades. 

5. Cost Efficiency: Although the initial cost may be higher, its durability and reduced maintenance needs can lead to overall cost savings in the long run. 

6. Weldability: UNS S32750 can be welded using standard techniques, although proper procedures should be followed to prevent issues like sensitization.

Applications

• Chemical processing, transport and storage
• Oil and gas exploration and offshore rigs
• Oil and gas refining
• Marine environments
• Pollution control equipment
• Pulp & paper manufacturing
• Chemical process plant