Intercoastal Sales has a large inventory of flanges in carbon steel, stainless steel 316 and 304, galvanized, and other special alloys including nickel and monel. A flange is used to support or close off a pipeline, or provide the capability to attach other items such as valves , buttweld or forged fittings to the process. The flange faces are also made to standardized dimensions and are typically "flat face", "raised face", "tongue and groove", or "ring joint" RTJ styles, although other obscure styles are possible.Flanges can be welded or screwed to the pipe and are joined with another flange connection using stud bolts and gaskets for a proper seal. Insco also carries a full line of studs and gaskets to accompany your flange order.

Sizes: 1/2″ - 60″
Flange Dimension Chart

Carbon Steel - ASTM A105, ASME SA105 and ASME/ANSI B16.5 and B16.47 specifications

Low Temp Carbon Steel – A350 LF2

Stainless Steel – A182 304/L and 316/L

Alloys 200/201, 400, 600, 625, 800H/HP, 825, A20, Monel, C276, F22 Chrome

Standard Pipe Flanges up to and including 24 inches nominal. Pressure Classes include 150, 300, 600, 900, 1500 and 2500.

Standard Pipe Flanges above 24 inches. Pressure Classes include 75, 150, 300, 400, 600 and 900

Manufacturers Include: Ameriforge, Bebitz, Boltex, Coffer, D L, Federal Flange, Galperti, KOFCO, Maass Flange Corp., Metalfar, National Flange, Texas Metal Works, Tube-Line, Tri-Lad, ULMA Forging, Weldbend, Wilhelm Geldbach

Slip-On Flanges

Slip-on pipe flanges do in fact what they say… they slip right on to the pipe. Slip-on flanges are typically machined with an inside diameter of the pipe flange slightly larger than the outside diameter of the pipe. This allows the flange to slide over the pipe but to still have a somewhat snug fit. Slip-on flanges are secured to the pipe by a welding procedure. Slip-ons can also be referred to as a Ring Flange or a Hub Flange. Intercoastal Sales can supply you with Slip-On Flanges ranging from ½” through 144″.