SS 316L Lap Joint Flanges

The SS 316L Lap Joint Flange (LJ) is a forging that is designed to be paired exclusively with a Stub End (a short section of pipe with one flanged end). The flange itself is a flat ring with a bore large enough to slip over the pipe, allowing it to swivel freely. The Lap Joint Flange presses against the back face of the Stub End, which is butt-welded to the pipe, making the Stub End the sole point of contact with the fluid. The key advantage of this design is the ability to easily align the bolt holes of the free-swiveling flange before tightening the joint. The 316L designation ensures a low carbon content, which is crucial for preventing intergranular corrosion in the welded Stub End. The inclusion of Molybdenum provides superior corrosion resistance against pitting and crevice corrosion in harsh media. Zeron Fasteners manufactures and supplies reliable SS 316L Lap Joint Flanges that conform to standards like ASME B16.5 and ASTM A182 F316L, ideal for systems requiring frequent dismantling or simple bolt alignment.

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