SS 304L Lap Joint Flanges - Easy Alignment & Disassembly

The SS 304L Lap Joint Flange is a specialized pipe component characterized by its ability to slide over the pipe and swivel, offering considerable advantages in systems requiring frequent disassembly or where alignment of bolt holes is difficult. This flange is always used in conjunction with a Stub End (a short piece of pipe that is butt-welded to the pipe and has a flared end). The flange merely serves as a backing ring to compress the gasket against the back of the stub end. The low-carbon 'L' grade stainless steel is used to ensure the weld between the pipe and the stub end maintains optimal corrosion resistance. Zeron Fasteners is a specialized manufacturer and supplier of SS 304L Lap Joint Flanges, adhering to ASME B16.5 standards. They are particularly popular in systems where non-corrosive materials (like stainless steel) are needed only for the wetted parts, or in services requiring quick dismantling for inspection.

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SS 304L Lap Joint Flanges Manufacturer in India

SS 304L Lap Joint Flanges Chemical Composition

Element Composition (Weight %)
Carbon (C) 0.030 Max
Manganese (Mn) 2.00 Max
Phosphorus (P) 0.045 Max
Sulphur (S) 0.030 Max
Silicon (Si) 1.00 Max
Chromium (Cr) 18.00 to 20.00
Nickel (Ni) 8.00 to 12.00

SS 304L Lap Joint Flanges Mechanical Properties

Property Minimum Requirements (ASTM A182 or A403)
Tensile Strength 485 MPa min
Yield Strength (0.2% Offset) 170 MPa min
Elongation 35% min
Design Standard ASME B16.5 and ASME B16.9 (for Stub End)
Facing Type Flat Face (FF) required for Stub End

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