F316L Standard Steel Slip On RF Flanges ASTM A182/ASME SA182

What is F316L SO RF Flange

F316L refers to the grade of stainless steel used in the manufacturing of the flange. It is a low carbon version of F316 stainless steel, which contains a higher amount of chromium and nickel, making it more resistant to corrosion and suitable for use in corrosive environments.

SO RF (Socket Weld Raised Face) is a type of flange connection. The socket weld refers to the welding method used to connect the flange to the pipe. It involves inserting the pipe into the socket of the flange and applying fillet weld around the socket. The raised face refers to the raised surface on the flange face that provides a sealing surface when compressed against a gasket.

Overall, F316L SO RF flange is a stainless steel flange made from grade F316L steel, featuring a socket weld connection and a raised face for sealing purposes.

The Advantage of F316L SO RF Flange

• Corrosion resistance: F316L stainless steel, the material used for the flange, has excellent corrosion resistance, making it suitable for use in corrosive environments, such as the petrochemical industry, offshore platforms, and chemical processing plants.
• Leak-free connection: The socket weld connection of the F316L SO RF flange provides a secure and leak-free connection between piping systems. The fillet weld around the socket ensures a strong and reliable joint.
• High temperature and pressure resistance: F316L stainless steel has good high-temperature strength and can withstand elevated temperatures and high-pressure conditions without compromising its performance.
• Easy installation: The socket weld design of the flange makes it relatively easy to install and weld compared to other types of flanges, reducing installation time and effort.
• Compatibility: F316L SO RF flanges are compatible with a wide range of piping systems and can be used with various types of pipes, such as carbon steel, stainless steel, and alloy steel.
• Versatility: F316L SO RF flanges are suitable for diverse applications, including petrochemical, oil and gas, pharmaceutical, food and beverage, and other industries that require secure and leak-free connections between piping systems.

Designs of flanges:
A wide variety of flange designs are available. They are available in various shapes and sizes. Some of the popular designs are as follows:

• Butt weld
• Socket weld
• Captive
• Split
• Square
• Round
• Rectangle etc.

Custom shapes and sizes are also manufactured by numerous manufacturers. Various pipe flanges include machining details such as gasket surfaces, facing details, non-standard drilling, bevel and radius edges, o-ring grooves and raised or recessed faces. Some typical designs on flanges faces are shown below.

Raised Fase	Chamfer
Counter Bore	O-Ring Groove
Radius	Gasket Surface

Applications of pipe flanges

F316L SO RF flanges are commonly used in applications that require a secure and leak-free connection between piping systems. Some of the typical applications of F316L SO RF flanges include:

• 1. Petrochemical industry
• 2. Oil
• 3. Pharmaceutical industry
• 4. Food and beverage​