Different Types of Flanges

What is a Flange | SS Flange?

A flange is a rim (lip) or an external or interior ridge used for strength. Stainless Steel Flanges can also be used to join two objects together, such as Stainless Steel Screwed Flanges on the end of a pipe, a steam cylinder, and so on. Pipes with Stainless Steel Slip-On Pipe Flanges are simple to put together and take apart. Metalica Forging Inc. is a leading Flanges Manufacturers in Mumbai, India. Our qualitative range of Flanges is exclusively designed for several piping applications of various industries Such as steel factories, chemical industries, petrochemical industry, fire protection systems, etc.

Types of Flanges

A Stainless Steel Pipe Flanges can be used as a plate to cover or shut a pipe’s end. This is referred to as a blind flange. As a result, SS Flanges are regarded as essential internal components that may be employed to support mechanical elements or systems.

Types of Flanges

Flanges are not a one-size-fits-all solution. Aside from sizing, choosing the right flange design for your pipe system and intended use will ensure dependable operation, a long service life, and the best price.

Here is a list of the most popular flange types.

Slip-on Flanges

Slip-on flanges are widely used and come in a variety of sizes to support systems with increased flow rates and throughput. Simply fit the flange to the outside diameter of the pipe to be connected. Installation is a little more complicated since you’ll need to fillet weld both sides of the flange to fasten it to the pipe. Metalica Forging Inc is the world’s best Slip-on flange Manufacturer.

Threaded Flanges

Threaded Flanges, also known as screwed flanges, have a thread within the flange bore that matches the male thread on the pipe or fitting. Because of the threaded connection, you may avoid welding in many applications. Simply align the threading with the pipes you want to connect.

Blind Flanges

Blind flanges are essentially boltable blank discs that are used to terminate or isolate pipe systems. When correctly placed and paired with the appropriate gaskets, they may provide an excellent seal that is simple to remove when necessary. Metalica Forging Inc is the world’s best Blind Flanges Manufacturer.

To see all other types of flanges visit: Flanges Manufacturer

Flanges Applications and Uses:

  • Flanges used in Homes and buildings
  • Flanges used in Transporting materials
  • Stainless Steel Flanges used in the Automotive industry
  • Flanges used in Sewerage systems, industrial water lines, and water mains.
  • Flanges used in heating, ventilating, and air-conditioning equipment.
  • Stainless Steel Flanges used in Plumbing
  • Flanges used in Food Processing Industry
  • SS Flanges used in Paper & Pulp Industry

Most Famous Flanges Grades

Stainless Steel Flanges Specification, Grades, and Material

Flanges TypesSlip-On, Weld Neck, Long Weld Neck, Threaded, Blind, Companion, Lap Joint
Class150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS ASA 150, ASA 300, PN 6,10,16,25, 40,64,100,160 ETC. available with NACE MR 01-75
Size1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000
TypeRaised Face (RF), Flat Face (FF), Ring Type Joint (RTJ), Lap-Joint Face (LJF), Large Male-Female (LMF), Small Male-Female (SMF), Large Tongue & Groove, Small Tongue, Groove


Stainless SteelASTM /ASME A/SA 213 / 249 / 269 / 312 / 358 CL. I to V – 304 , 304L , 304H, 309S ,309H , 310S, 310H , 316 , 316TI , 316H , 316 LN , 317 , 317L , 321 , 321H , 347 , 347 H , 904L .
Duplex SteelASTM/ASME A/SA 789, 790
– UNS NO S 31803, S 32205, S 32550, S 32750, S 32760.
Carbon SteelASTM A106 Gr. A, B & C API 5L Gr. A / B, X42 ,X52 ,X60 ASTM A 53 Gr. A/B
Alloys SteelASTM /ASME A/SA 213 / 335 / 691 – P5,P9,P11,P12,P22,P91
Nickel AlloysNickel Alloys 200, Nickel Alloys 201
Hastelloy C-22, Hastelloy C-276, Hastelloy C-2000, Hastelloy C-4, Hastelloy X, Hastelloy B, Hastelloy N, Hastelloy G
InconelInconel 600, Inconel 601, Inconel 625, Inconel 625LCF, Inconel 686, Inconel 718, Inconel 800, Inconel 825, Inconel X-750 , Inconel 690, Inconel 602, Inconel 617, Inconel 925, Inconel A-289, Inconel AL-6XN, AL-904L

Flanges | SS Flange Dimension and Sizes

Bolt Circle (BC)Raised Face (R)Raised Face (RF)Raised Face
Thickness (T)
Flat Face
Thickness (T2)
Bolt Hole (B)No. of
Bolt Holes

Most Selling Pipe Fittings