Forging is the process by which metal is heated and is shaped by plastic deformation by suitably applying compressive force. Usually, the compressive force is in the form of hammer blows using a power hammer or a press. The forgings and consequently, the forged flanges are inherent corrosion resistant. Forging refines the grain structure and improves physical properties of the metal. With proper design, the grain flow can be oriented in the direction of principal stresses encountered in actual use. Physical properties (such as strength, ductility and toughness) are much better in forging than in the base metal which has, crystals randomly oriented. Forgings are fully dense and homogeneous and not subjected to discontinuities, like porosity. Flanges, made in such way, are stronger, offer better response to heat treatment, yields lower scrap and greater productivity.


 
Slip-On Flange Welding Neck Flange BLIND FLANGE Socket Welding Flange LAP JOINTING FLANGE Screwed Flange

Slip-On Flange

Forged Slip-On Pipe Flange actually slips over the pipe. These pipe 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 butt to have a somewhat snug fit. Slip-on pipe flanges are secured to the pipe with a fillet weld at the top and the bottom of the slip-on pipe flanges. Slip on Pipe flanges with a hub can have better welding strength, mainly because of the hub. Forged Slip-on flange are available in wide variety of sizes and applications.

 

They are conforming to the following national and international standards :

 

  • Type : Slip-On Flange 
  • Material : Forged Carbon Steel : ASTM A105-ASME SA105 & Forged Stainless Steel : ASTM A182-ASME SA182 304,304L,316,316L
  • Dimension : ASME-ANSI B16.5, ASME-ANSI B16.47, AWWA C207, BIS 13159, BS EN 4504, BS EN 3293, DIN 2527, DIN 2576
  • Size Range : 15 NB TO 1200 NB

Welding Neck Flange

Forged Welding Neck Pipe Flange is attached to the pipe by welding the pipe to the neck of the pipe flange. This allows for the transfer of stress from the weld neck pipe flanges to the pipe itself. This also reduces high stress concentration at the base of the hub of the weld neck pipe flanges. Weld neck pipe flanges are often used for high pressure applications. The inside diameter of a weld neck pipe flange is machined to match the inside diameter of the pipe. Forged Welding neck pipe flange is available in wide variety of sizes and applications.

They are conforming to the following National and International Standards :

  • Type : Welding Neck Flange
  • Material : Forged Carbon Steel : ASTM A105-ASME SA105 & Forged Stainless Steel : ASTM A182-ASME SA182 F304, 304L, 316, 316L
  • Dimension : ASME-ANSI B16.5, ASME-ANSI B16.47, BIS 13159, BS EN 4504 , BS EN 3293, DIN 2632, DIN 2633, DIN 2634, DIN 2635
  • Size Range : 15 NB TO 600 NB

BLIND FLANGE

Forged Steel Blind Pipe Flange is round plates which have all of the relevant bolt holes but no center hole. They are used to seal the end of piping systems or pressure vessel openings. They are commonly used for testing the pressure of gas or liquid through a pipe or vessel.

  • Type : Blind Flange 
  • Material : Forged Carbon Steel : ASTM A105-ASME SA105 & Forged Stainless Steel : ASTM A182-ASME SA182 F304, 304L, 316, 316L
  • Dimension : ASME-ANSI B16.5, ASME-ANSI B16.47, AWWA C207, BIS 13159, BSI 3293, BSI 4504, DIN 2527, DIN 2576
  • Size Range : 15 NB TO 1200 NB

Socket Welding Flange

Forged Socket Welding Pipe Flange is typically used on smaller sizes of high pressure pipes. These pipe flanges are attached by inserting the pipe into the socket end and applying fillet weld around the top. This allows for a smooth bore and better flow of the fluid or gas inside of the pipe. Forged Socket welding flange are available in wide variety of sizes and applications.

They are conforming to the following national and international standards :

  • Type : Socket Welding Flange
  • Material : Forged Carbon Steel : ASTM A105-ASME SA105 & Forged Stainless Steel : ASTM A182-ASME SA182 F304, 304L, 316, 316L
  • Dimension : ASME-ANSI B16.5, BIS 13159, BIS 6392, BSI 4504
  • Size Range : 15 NB TO 100 NB

LAP JOINTING FLANGE

Forged Lap Jointing Pipe Flange slides directly over the pipe and are most commonly used with stub end fittings. A pipe is usually welded to the Stub End and the Lap Jointing pipe flange is free to rotate around the stub end.  They are normally used in piping systems which require regular dismantling for inspection and cleaning.

They are conforming to the following National and International Standards : 

  • Type : Lap Jointing Flange 
  • Material : Forged Carbon Steel : ASTM A105-ASME SA105 & Forged Stainless Steel : ASTM A182-ASME SA182 F304, 304L, 316, 316L
  • Dimension : ASME-ANSI B16.5, ASME-ANSI B16.47, AWWA C207, BIS 13159, BSI 3293, BSI 4504, DIN 2642
  • Size Range : 15 NB TO 1200 NB

Screwed Flange

Forged Threaded Pipe Flange is similar to slip-on pipe flange except the bore of threaded pipe flange has tapered threads. Threaded pipe flanges are used with pipes that have external threads. The benefit of these pipe flanges is that it can be attached without welding. Threaded pipe flanges are often used for small diameter, high pressure requirements. Forged Screwed flange are available in wide variety of sizes and applications.

They are conforming to the following national and international standards :

  • Type : Screwed Flange
  • Material : Forged Carbon Steel : ASTM A105-ASME SA105 & Forged Stainless Steel : ASTM A182-ASME SA182 F304, 304L, 316, 316L
  • Dimension : ASME-ANSI B16.5, BIS 13159, BIS 6392,  BSI 4504
  • Size Range : 15 NB TO 100 NB