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Weld Neck Flanges

Weld neck flanges are easily identified by their protruding necks. Each flange neck is bored to suit the relevant wall thickness of the piping application on which it is to be used. Weld neck flanges tend to be used in higher pressure applications. Each weld neck has a weld prep at the end of the neck, so that is can be welded directly onto the piping. Once the weld neck is in situ, the pipeline can be blanked off using a blind flange or the bore reduced using a modified flange.


We also supply and stock:

  • Billets cut from round bar
  • BSP/NPT/SW Fittings
  • ASME SA269/249/270/A213 tubes

Materials include:

Stainless steels Duplex Nickel alloys Carbon steels Low alloys
316/L F51/S31803 200 A105 F5
316/H F51/S31803 400 A350 LF2 F9
316/Ti F53/S32750 K500 F11
304/L F55/S32760 600 F22
304/H 625
321 718
347 800/H
310 825
317/L Nimonic