What is stub end buttweld fitting?

stub end buttweld fittings

Stub End Butt Weld Fittings play a pivotal role in seamlessly connecting pipes within piping systems and their components, adhering to specific Stub End Specifications and SS Stub End Dimensions in mm. As a renowned Stub End Buttweld Fitting Manufacturer, Supplier, Stockist, and Exporter based in India, Hilton Forge India takes great pride in delivering a diverse range of these fittings. Our expertise lies in crafting stub-end buttweld Fittings that are precisely tailored to meet the unique requirements of various projects, establishing us as a trusted stub end buttweld fitting supplier in the industry.

In this blog post, we’ll delve into the intricacies of Stub End Butt Weld Fittings, exploring their definition, types, applications, and advantages.

What is Stub End Buttweld Fitting?

Stub End Buttweld Fittings are essential components used in piping systems to connect pipes with different diameters. They consist of two main parts: the stub end and the lap joint flange. The stub end fittings are welded to the pipe, while the lap joint flange is freely moved over the stub end. This unique design allows for easy alignment and adjustment, making them ideal for applications where frequent dismantling is required.

Types of Stub End Butt Weld Fittings:

  • Short Pattern Stub End: This type has a shorter length and is typically used in low-pressure, non-critical applications.
  • Long Pattern Stub End: Featuring a longer length, this type is suitable for high-pressure and critical applications where additional reinforcement is necessary.

Specifications & Standards of Stub End Buttweld Fittings

ParticularsDetails
StandardsANSI B16.11
DimensionANSI B16.11 Stub End Buttweld FittingsBS 3799MSS SP
MaterialsASTM A105 Stub End Buttweld Fittings, ASME SA105 Stub End Buttweld Fittings, ASTM A182 Stub End Buttweld Fittings, ASME SA182 Stub End Buttweld Fittings, ASTM A350 LF1 Stub End Buttweld Fittings, LF2 CL1/CL2 Stub End Buttweld Fittings, LF3 CL1/CL2 Stub End Buttweld Fittings, ASTM A694 F42 Stub End Buttweld Fittings, F46 Stub End Buttweld Fittings, F48 Stub End Buttweld Fittings, F50 Stub End Buttweld Fittings, F52 Stub End Buttweld Fittings, F56 Stub End Buttweld Fittings, F60 Stub End Buttweld Fittings, F65 Stub End Buttweld Fittings, F70 Stub End Buttweld Fittings. ASTM B564 Stub End Buttweld Fittings, ASME SB564 Stub End Buttweld Fittings
ClassStub End Buttweld Fittings 3000#, Stub End Buttweld Fittings 6000#, and Stub End Buttweld Fittings 9000#
Size1/2” NB TO 4” NB
FormsSeamless / ERW / Welded / Fabricated
Types Short Pattern Stub EndLong Pattern Stub End
ThicknessSchedule 5S, 10S, the 20S, S10, S20, S30, STD, 40S, S40, S60, XS, 80S, S80, S100, S120, S140, S160, XXS and etc.
Stainless SteelASTM A182  F316/316L Stub End Buttweld Fittings,  ASTM A182  F316H Stub End Buttweld Fittings, ASTM A182  F316L Stub End Buttweld Fittings, ASTM A182  F316 Stub End Buttweld Fittings, ASTM A182  F316Ti Stub End Buttweld Fittings, ASTM A182  F317 Stub End Buttweld Fittings Fittings,  ASTM A182  F317L Stub End Buttweld Fittings,ASTM A182  F321 Stub End Buttweld Fittings, ASTM A182  F321H Stub End Buttweld Fittings. ASTM A182  F347 Stub End Buttweld Fittings, ASTM A182  F347H Stub End Buttweld Fittings, ASTM A182  F904L Stub End Buttweld Fittings, ASTM A182  F44 Stub End Buttweld Fittings,  ASTM A182  F51 Stub End Buttweld Fittings,  ASTM A182  F53 Stub End Buttweld Fittings, ASTM A182  F55 Stub End Buttweld Fittings, ASTM A182  F60 Stub End Buttweld Fittings
Alloy SteelASTM A182 F1, A182 F5, A182 F9, A182 F11, A182 F12, A182 F22, A182 F91 
Export ToIreland, Singapore, Indonesia, Ukraine, Saudi Arabia, Spain, Canada, USA, Brazil, Thailand, Korea, Iran, India, Egypt, Oman, Dubai, Peru, etc
Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175

Advantages of Stub End Butt Weld Fittings:

  • Easy Installation: The design of Stub End Butt Weld Fittings allows for quick and straightforward installation, reducing downtime during piping system modifications.
  • Versatility: These fittings can be used in a variety of applications across different industries, showcasing their versatility and adaptability.
  • Leak Resistance: The welded connection between the Stub End and the pipe ensures a secure and leak-resistant joint, minimizing the risk of fluid or gas escape.
  • Corrosion Resistance: Typically made from corrosion-resistant materials such as Stainless Steel, Carbon Steel, Alloy 20 Steel, Duplex & Super Duplex Stainless Steel, Titanium & Nickel Alloys, Inconel and Hastelloy, Stub End Butt Weld Fittings offer durability and longevity even in corrosive environments.

Applications of Stub End Buttweld Fittings

Stub End Butt Weld Fittings find applications across various industries, including:

  • Petrochemical Industry
  • Oil and gas industry
  • Water Treatment Facilities
  • Power Generation Plants
  • Food and Beverage Industry
  • Pharmaceutical Industry
  • HVAC (Heating, Ventilation, Air Conditioning) System
  • Construction Project
  • Shipbuilding Industry
  • Mining Industry and so on.

Final Words!

Selecting the optimal Stub End Buttweld Fittings is paramount for ensuring the efficiency and durability of your piping systems. Partnering with Hilton Forge India, a distinguished stub end buttweld fittings manufacturer in India and trusted supplier, guarantees access to top-quality fittings that adhere to the highest industry standards. Explore our extensive range and experience the reliability and precision that sets us apart as!