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ramesh@brighttubes.in · +91 98200 74585

45 grades 5 material families

Fittings

Pipe fittings change the direction, size or branch of a piping system: elbows, tees, reducers, caps, stub ends, crosses and couplings. Butt-weld fittings follow ASME B16.9 (and MSS SP-43 for light-wall stainless). Forged socket-weld and threaded fittings follow ASME B16.11.

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Fittings Butt-weld ½" – 48" (larger fab
On this page 6 sections
  1. Types
  2. By material
  3. Manufacturing
  4. Sizes & testing
  5. Marking & packing
  6. FAQs

Types of fittings

Pipe ElbowsElbows change the direction of a pipe run, most commonly 90° and 45°, and 180° returns.Pipe TeesTees create a 90° branch from a main run.Pipe ReducersReducers join pipes of different sizes.Pipe End CapsEnd caps close the end of a pipe permanently.Stub EndsStub ends are short pipe pieces with a flared lap that pair with lap-joint flanges.Pipe CrossesCrosses have four outlets at 90°, for splitting or combining flows.CouplingsCouplings join two small-bore pipes, or connect a branch to a vessel or pipe.

Fittings by material

Stainless Steel Fittings

Nickel Alloys Fittings

Carbon Steel Fittings

Alloy Steel Fittings

Non-Ferrous Metals Fittings

How they are made

Butt-weld fittings are formed from seamless or welded pipe or plate by hot or cold forming (mandrel bending, hydraulic bulging, pressing), then heat treated, bevelled and finished. Socket-weld and threaded fittings are machined from forgings or bar.

Fittings: how they are made, sized and tested

Fittings Butt-weld ½" – 48" (larger fab

How it's madeButt-weld fittings are formed from seamless or welded pipe or plate by hot or cold forming (mandrel bending, hydraulic bulging, pressing), then heat treated, bevelled and finished. Socket-weld and threaded fittings are machined from forgings or bar.

Size range
Butt-weld ½" – 48" (larger fabricated to order) in schedules matching the pipe; socket-weld and threaded ⅛" – 4" in Class 2000, 3000, 6000 and 9000
Finish
Annealed & pickled, shot-blasted, black painted or galvanised (by material)
Ends
Bevelled (butt-weld), socket-weld, threaded NPT/BSP

Testing & documents

  1. Chemical and mechanical tests of the starting material
  2. Dimensional inspection to B16.9 / B16.11
  3. Radiography of welded fittings (seamed WPW/WX)
  4. Hardness, IGC and impact tests as specified
  5. EN 10204 3.1 certificate; 3.2 with third-party inspection

Marking and packing

Marking: Manufacturer, specification, grade (e.g. WP316L), size, schedule/class and heat code.

Packing: Wooden boxes or cartons, with end protection for bevels.

Frequently asked questions

What is the difference between WP and F designations?

WP (wrought pipe fitting) grades such as A403 WP316L cover butt-weld fittings. F grades such as A182 F316L cover forged fittings and flanges.

What is a long-radius elbow?

An elbow whose centreline radius is 1.5 × NPS. Short-radius elbows have a radius equal to NPS.

Which materials are fittings available in?

Stainless Steel, Nickel Alloys, Carbon Steel, Alloy Steel, Non-Ferrous Metals: 45 grades in total, from stock or mill-sourced.

What sizes of fittings do you supply?

Butt-weld ½" – 48" (larger fabricated to order) in schedules matching the pipe; socket-weld and threaded ⅛" – 4" in Class 2000, 3000, 6000 and 9000.

How are fittings tested?

Chemical and mechanical tests of the starting material; Dimensional inspection to B16.9 / B16.11; Radiography of welded fittings (seamed WPW/WX).

Need fittings?

Send grade, specification, size and quantity. We reply with availability and documentation.

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