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Lap Joint Flange

Stainless Lap Joint Flange

The lap joint flange is practically identical to a slip-on flange except it has a radius at the intersection of the bore and flange face. This radius is necessary to have the flange accommodate a lap joint stub end. Normally, a lap joint flange and a lap joint stub end are mated together is an assembly system.

The flanges we offer mainly include Welding Neck, Blind, Slip-on, Lap-Joint, Socket, Spectacle, Forged, Reducing and Threaded.

Standards, Dimensions & Weight of Lap Joint Flange:

  • ASME/ANSI B16.5 Class 150 LJ
  • ASME/ANSI B16.5 Class 300 LJ
  • ASME/ANSI B16.5 Class 600 LJ
  • ASME/ANSI B16.5 Class 900 LJ
  • ASME/ANSI B16.5 Class 1500 LJ
  • ASME/ANSI B16.5 Class 2500 LJ

Material of Lap Joint Flange:

  • Cabon steel: A105, A350 LF2
  • Stainless steel: A182 F304/F304L/F316/F316L/F321
  • Alloy steel: F11, F12

Specifications of Lap Joint Flange:

  • Standards: ANSI, MSS, API, AWWA, DIN, JIS, BS and GB.
  • Process: free forging, plate cutting.
  • Sizes range: 1/2" to 64" (and much larger size according to customers' demands).
  • Materials: Carbon steel, stainless steel and alloy steel.
  • Printing: Carbon steel and alloy steel with yellow print, black print, oil or zinc.
  • Packing: in wooden cases, wooden pallets or as per customers' special requirement, Standard Export Package.

* We can also manufacture special application flanges and forgings that customers require.

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