Buttweld Fittings

Buttweld Fittings

Pipes and tubes have to be fitted in different systems of various sizes. This implies that they require components, which can be utilized to facilitate this issue. Fittings help in making this possible. This allows them to influence the characteristics of the flow ranging from direction to pressure. These items are available in a wide range of sizes and shapes to be suitable for all types of applications.

What is Buttweld connection?

A butt-weld connection is one of the simple and versatile processes involved in joining several items. Generally produced from the hot and cold rolling process the items, are molded in the correct shape. The heat treatment process helps remove any residual stress to achieve good mechanical properties. This connection is formed by placing two pieces of metal facing them end-to-end and then welding them together. These ends are prepared by bevelling to make them similar to the pipe end. The modules are then butted and joined to the pipeline. They can be shaped in the form of elbows, tees, reducers, etc.

What is welded fitting?

A welded fitting is a component, which helps join different pieces of sheet metal together. A weld allows different components to be easily formed in a wide variety of shapes. They compliment and allow pipes and tubes to be welded within the system with ease. In some cases, the item has to be beveled so that a strong weld is attained and the entire system is leak-proof. The weld is very durable and reliable across various stress-induced systems. If they are processed further the product can attain excellent corrosion and oxidation resistance properties. These welded structures are less expensive compared to seamless items.

How are Buttweld fittings made?

These items are available in seamless and welded sections. The seamless components are produced without the requirement of welds or seams. The fittings are produced via cutting, heating, and shaping them in desired shapes. Welded structures consist of one or more welds depending on the pressure and dimension of the module. These components can be subjected to a cold-rolling process to give them extra protection against corrosion.

Are butt weld fittings seamless?

Yes, these fittings can be seamless. The components in this range are heat treated with billets and then shaped in different dimensions and shapes, as per the requirement. These items are generally more reliable and are less prone to failures and leakages. They are generally available in sizes lower than 12mm. The range of products in this range are slightly expensive due to the material used while producing them.

What is bw and its types?

BW is a common aberration for butt-weld. The different types of fittings in this range include

  • Elbow- It facilitates the change of flow in the system.
  • Tees- They are made with three openings designated to distribute the flow across 3 channels. These items can be availed as equal or reducing tees.
  • Cap- It is generally mounted at the end of the system to close the line and protect it from corrosion.
  • Coupling- Helps in joins two separate shafts together to transmit power.
  • Nipple-These components are a short piece of pipe that has threads on both ends enabling it connects two other fittings.
  • Stub ends- Comprising of two components these items are used to replace welded ans act as a backup.
  • Reducers- These items help join pipes of different sizes together. They can be availed either as concentric and eccentric reducers.

What is ASME B16.25?

ASME B16.25 covers the preparation of ends of butt weld piping modules, which are designated to be joined via welding. The standards contain information about the welding and general scope, welded designs, and preparation of the internal diameter, along with related tolerances.


Specifications of Hastelloy Buttweld Fittings

Standards : ASTM, ASME
Designation : B 366, SB 366
Grade : Hastelloy  Buttweld Fittings
Hastelloy Buttweld Fittings:  ASTM B 366, ASME SB 366

Specification : ASTM B366, ASTM SB 366, ASTM B564, ASME SB564
Dimensions : ANSI/ASME B16.9, B16.28, MSS-SP-43.
Size : 1/2"NB TO 12"NB IN
Thickness : Sch Sch 10, 20, 40, STD, 60, 80, XS, 100, 120, 140, 160 Sch XXS
Types : Seamless / ERW / Welded / Fabricated
Grades : Hastelloy C22 (UNS No. N06022), Hastelloy B2 (UNS No. N10665), Hastelloy C-4 (UNS No. N06455)

Specifications of Inconel Buttweld Fittings

Range : 1/2"NB TO 12"NB IN
Standard : ASTM B366, ASTM SB 366, ASTM B564, ASME SB564
Designation : ANSI B 16.5, BS 1560. BS 10, IS 6392, B-2.1 NPT, API, DIN, JIS. MSS SP 44
Types : SEAMLESS / WELDED/ FABRICATED
SCH : 10, 20, 40, STD, 60, 80, XS
Grades : Inconel 600 – UNS N06600, Inconel 601 – UNS N06601, Inconel 625 – UNS N06625, Incoloy 800 – UNS N08800, Incoloy 800H / HT – UNS N08810, Incoloy 825 – UNS N08825
 

STANDARD WERKSTOFF NR. UNS JIS AFNOR BS GOST EN OR
Inconel / Incoloy 2.4816 N06600 NCF 600 NC15FE11M NA 13 МНЖМц 28-2,5-1,5 NiCr15Fe ЭИ868

Carbon Steel Butt Weld Fittings

Standards & Grades

ASTM A234 WPB / A420
WPL3/ A420 WPL6/ MSS-SP-75 WPHY 42 / 46 / 52 / 56 / 60 / 65 / 70

Butt Weld Fitting Size(s) available:

1/4” NB TO 32” NB. (Seamless & Welded)Wall Thickness Sch. 5S To Sch. XXS


Carbon Steel Pipe Fittings Production Range :

Grade Specification Carbon Steel: ASTM/ASME A234 WPB / A860 – MSS-SP-75 WPHY 42 / 46 / 52 / 56 / 60 / 65 / 70Low temperature Steel: A420 WPL3 / A420 WPL6
Type Seamless / Welded / Fabricated
Bending Radius R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Range ½”NB to 48″NB in Sch 10s, 40s, 80s, 160s, XXS.
Dimensions ANSI/ASME B16.9, B16.28, MSS-SP-43.

Specifications :

Carbon Steel : ASTM A234 WPB / A420 WPL3/ A420 WPL6/ MSS-SP-75 WPHY 42/46/52/56/60/65/70 etc.
Alloy Steel : ASTM A234 WP1/ WP5/ WP9/ WP11/ WP22/ WP91/ etc.
Finish : Bright, Zinc plated, Yellow zinc plated etc.
Certification : EN 10204 3.1/ EN 10204 3.2/ NACE MR 0175
Packaging Details : Bundles, seaworthy wooden cases.With or without edge protector, steel hoop and seals, or as per customer specification
Size : 1/8" NB TO 24" NB. (Seamless & Welded)
Wall Thickness : Sch. 5S To Sch. XXS
Also as per National & International Standard &Specification

Buttweld Carbon Steel Pipe Fittings

Seamless/ Welded 100% Radiography Tested

Products Size
Carbon Steel Elbows – Long Radius Carbon Steel Stub Ends

Sizes 1/2″ – 48″

Carbon Steel Elbows – Short Radius Carbon Steel Crosses
Carbon Steel Reducing Elbows Carbon Steel Reducing Crosses
Carbon Steel 45° Elbows Carbon Steel 180° LR Return Bends
Carbon Steel Tees Carbon Steel 180° SR Return Bends
Carbon Steel Tees Carbon Steel Pipe Bends / Piggable Bends
Carbon Steel Reducers Carbon Steel Couplings
Carbon Steel Concentric Reducers Carbon Steel Pipe Nipples
Carbon Steel Eccentric Reducers Carbon Steel Forged/Plate Cut Rings
Carbon Steel 3D Elbow Carbon Steel End Caps
Carbon Steel 5D Elbow Carbon Steel Forged / Plate Circles

High Pressure Forged Carbon Steel Pipe Fittings

Threaded and Socket Weld Pipe Fittings

Products Size
Carbon Steel 90° Elbows Carbon Steel Couplings

Sizes 1/8″ – 4″

Pressure Ratings –

2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS

Carbon Steel 45° Elbows Carbon Steel Reducers
Carbon Steel Street Elbows Carbon Steel Inserts
Carbon Steel Tees Carbon Steel Caps
Carbon Steel Crosses Carbon Steel Unions

Butt Weld Fitting Types

Elbows Equal Tee Nipple
Long Radius Elbow Reducing Tee Swage Nipple
Short Radius Elbow Reducer Barrel Nipple
90 Deg Elbow Concentric Reducer Reducing Nipple
45 Deg Elbows Eccentric Reducer Bend
180 Deg Elbow End Cap Long Radius Bend
1D Elbow Cap Piggable Bend
3D Elbow Stubend Cross
5D Elbow Long Stubend    
Tee Short Stubend    

ASTM A234 Alloy Steel Buttweld Pipe Fittings Specification

Steel Grade Pipe Tube Fittings Plate Forgings
1/2Mo A335 P1 A213 T1 A234 WP1 A182 F1
5Cr-1/2Mo A335 P5 A213 T5 A234 WP5 A387 GRADE 5 A182 F5
9Cr-1Mo A335 P9 A213 T9 A234 WP9 A387 GRADE 9 A182 F9
1 1/4 Cr-1/2Mo A335 P11 A213 T11 A234 WP11 A387 GRADE 11 A182 F11
2 1/4Cr-1Mo A335 P22 A213 T22 A234 WP22 A387 GRADE 22 A182 F22
9Cr-1Mo-V-Nb A335 P91 A213 T91 A234 WP91 A387 GRADE 91 A182 F91

Butt Weld Fitting Types

Elbows Equal Tee Nipple
Long Radius Elbow Reducing Tee Swage Nipple
Short Radius Elbow Reducer Barrel Nipple
90 Deg Elbow Concentric Reducer Reducing Nipple
45 Deg Elbows Eccentric Reducer Bend
180 Deg Elbow End Cap Long Radius Bend
1D Elbow Cap Piggable Bend
3D Elbow Stubend Cross
5D Elbow Long Stubend    
Tee Short Stubend    

Standard Specification

ASME B16.9
Sizes 1/2" to 56"
ASTM Specification ASTM A403, A234 WPB, A420, A860, A234 WP5 to WP92

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