ASTM A182 F316/F316L Stainless Steel Flanges SWRF/SOFF/WNRF Type B16.5

Overview

ASTM A182 F316L SWRF (Socket Weld Raised Face) Flanges are flanges made from ASTM A182 F316L stainless steel, which is a low-carbon version of F316 stainless steel. These flanges are specifically designed for socket weld connections, where the pipe is inserted into a socket and then welded.SWRF flanges are popular in various industries due to their easy installation and tight seal. The raised face design helps create a better sealing surface, enhancing the performance of the joint.

Slip-on Flanges

Slip-on Flanges have a lower initial cost than welding neck flanges because they require less accuracy in cutting pipe to length, and they provide a greater ease of alignment in assembly. However, their calculated strength under internal pressure is approximately 2/3's the strength of welding neck flanges, and their life under fatigue is 1/3 shorter. Slip-on Flanges are limited to 1/2" to 2½" sizes in 1500lbs standard.

Weld Neck Flanges

Weld Neck Flanges have a long tapered hub and gradual transition of thickness in the region of the butt weld joining them to the pipe. The tapered hub provides important reinforcement to the flange and resistance to dishing. This type of flange is preferred for severe service conditions resulting from high pressure, sub-zero or high temperatures.

Socket Weld Flanges

Socket Weld Flanges were developed for use on small size high pressure piping. With an internal weld, socket weld flanges are stronger and have greater fatigue strength than double welding a slip-on flange. Smooth bore conditions can be easily attained by grinding the internal weld. This flange is commonly used in chemical process piping.

Chemical Composition of ASTM A182 F316L

Mechanical Properies of ASTM A182 F316L