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High Nickel Alloy Buttweld Stub Ends, Hastelloy Buttweld Stub End Manufacturer in India, Buttweld Stub End at Best Price, Copper Nickel Buttweld Stub End, Monel Alloy Butt Weld Stub End, Industrial Buttweld Stub Ends Manufacturer & Supplier in India

Valour Alloys Inc., we carry a full inventory and Supply Stub End products in a variety of sizes widely used for marine applications due to their excellent resistance to seawater corrosion, low macrofouling rates, and good fabricability.

a short length of pipe with one flared end and one square-cut end, which is welded to a pipe of the same NPS, material grade and schedule. The combination of a Stub End and a backing flange is

A stub end is a type of buttweld fitting used in piping systems, primarily in conjunction with lap joint flanges. It is designed to facilitate the connection between two pipes or components with different outside diameters, and it plays a unique role in certain pipeline applications.


Stub End Manufacturer

Stub End Manufacturer

Stub End Exporter

Stub End Exporter

Purpose: Stub ends are used to create a non-permanent, loose connection in a piping system. They are typically used in applications where the flange needs to be easily rotated, adjusted, or removed, making them particularly useful in systems where frequent maintenance or changes are necessary.

Lap Joint Flanges: Stub ends are commonly used with lap joint flanges. Unlike other types of flanges, lap joint flanges do not have a raised face, and they are designed to slide over the pipe and are then rotated to align with the pipe's end. The stub end acts as a backing flange that holds the joint together.

Types: Stub ends come in two primary types: long pattern and short pattern. Long pattern stub ends have a length equal to the standard pipe length, while short pattern stub ends are shorter and lighter. The choice of type depends on the specific requirements of the application.

Materials: Stub ends are made from various materials to suit the specific needs of the piping system. Common materials include carbon steel, stainless steel, alloy steel, and other specialized materials, depending on factors such as the fluid being transported and environmental conditions.

Installation: When using stub ends with lap joint flanges, the joint is not as tight as those made with other types of flanges like slip-on or welded neck flanges. Instead, it offers flexibility and ease of disassembly. The assembly consists of the stub end, lap joint flange, and a gasket, and it is secured using nuts and bolts.

stub end buttweld fittings play a critical role in certain piping systems, allowing for easy assembly and disassembly of components, especially when used with lap joint flanges. They provide a practical solution for applications where flexibility and accessibility are essential for maintenance and alterations.

Stub End Range

Butt Weld Fitting Specification ASTM A403/ ASTM SA403, ASTM A815 / ASME SA815, ASTM A420 / ASME SA420, ASTM A234 / ASME SA234, ASTM A860 / ASME SA860, ASTM B366 / ASME SB366, DIN 2605 Part 1 / DIN 2605 Part 2, EN10253-2 / EN10253-4 TC1 and TC2
Butt Weld Fittings Manufacturing Process Hot / Cold / Fabricate / Seamless / Welded / Induction
Butt Weld Fittings Other Grades Stainless Steel - 304, 304L, 304H, 310s, 316, 316L, 317L, 321, 347, 904L, 410, 446 etc.
Carbon Steel - WPB, WPC, WPL6, WPHY42, WPHY46, WPHY52, WPHY56, WPHY60, WPHY65 etc.
Alloy Steel - WP5, WP9, WP11, WP22, WP91, 4140, Class 1, 2, 3 etc.
Duplex and Super Duplex - UNS N031803, UNS N032750, UNS N032760 etc.
Inconel - 600, 601, 625, 718, UNS N06600, UNS N06601, UNS N06625, UNS N07718 etc.
Incoloy - 800, 800H, 800HT, 825, UNS N08800, UNS N08810, UNS N08811, UNS N08825 etc.
Monel - 400, UNS N04400 etc.
Hastelloy - C276, C22, UNS N010276, UNS N06022 etc.
Titanium - Grade 2, Grade 3, UNS R50400, UNS R56200 etc.
Copper Nickel - 90/10, 70/30, UNS C71500, UNS C70600 etc.
Other - Alloy 20, SMO 254, UNS N08020, UNS N031254 etc.

EN / DIN
P235GHTC1/2 (St 35.8 I/ III), P265GH, S355J2H
16Mo3 (15Mo3), 10CrMo9-10 (10CrMo910), 13CrMo4-5 (13CrMo44)
X11CrMo5, X11CrMo9-1, X20CrMOV11-1, X10CrMoVNb9-1, X10CrWMoVNb9-2, 7CrMoVTiB10-10
P215NL (TTST35N/V), 12Ni14 (10Ni14)
P355N (StE355), P355NH (WStE355), P355NL1 (TStE355), P355NL2, L290NB (STE 290.7), L360NB (STE 360.7)
1.4301, 1.4306, 1.4362(Lean Duplex), 1.4401, 1.4404, 1.4435, 1.4436, 1.4439, 1.4462(Duplex), 1.4466(Super Duplex), 1.4501, 1.4539, 1.4541, 1.4550, 1.4571 1.4841, 1.4878,, 1.4876, 1.4952, 1.4835, 1.4877, 1.4910
Butt Weld Fittings Outer Diameter 1/2" NB TO 48" NB
Butt Weld Fittings Wall Thickness or Schedule Sch 10s to Sch XXS or As Per Custom Requirement
Butt Weld Fittings Types 45 Degree Elbow, 90 Degree Elbow, 180 Degree Elbow, LR Elbow (Long Radius Elbow), SR Elbow (Short Radius Elbow), Equal Tee, Reducing / Unequal Tee, Concentric Reducer, Eccentric Reducer, End Cap, Long Stub End, Short Stub End, Lap Joint Stub End, Equal Cross, Reducing / Unequal Cross, Seamless Fittings, Welded Fittings, 1.5D, 3D, 5D etc.
Butt Weld Fittings Dimension ASME 16.9 - Factory-Made Wrought Buttwelding Fittings
ASME B16.28 - Wrought Steel Buttwelding Short Radius Elbows and Returns
MSS SP-43 - Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications
Butt Weld Fittings Other Testing Tensile, Hardness Test, Chemical Analysis – Spectro Analysis, Positive Material Identification – PMI Testing, Flattening Test, Micro and Macro Test, Pitting Resistance Test, Flaring Test, Intergranular Corrosion (IGC) Test, NACE MR0175, Ultrasound Test, ASTM A262 Practice E, Charpy Impact Test, Grain Size, Dye Penetrant Test etc.
Butt Weld Fittings Packaging Carrate / Wooden Pallet / Wooden Box
Butt Weld Fittings Shipment & Transportation By Road - Truck / Train Partial Load, Full Load, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air - Freighter Civil Passenger and Cargo Planes
Butt Weld Fittings Material Test Certificate Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS, Bureau of Indian Standards BIS Approved ETC

Stub end is a mechanical joint that comprises of two components. It is essential for the short length of pipe. It’s one is flared outwards and other end prepared to be welded to the pipe of the same nominal pipe size, similar wall thickness, and material. The combination of stub ends is an alternative way to join pipes compared to the other means. These are used to facilitate bolting. Its use for the costly material pipeline helps the user to reduce the total weight of joints. These are highly used to convey fluids in a pipeline. Ideal it is preferred for high-pressure pipelines.

These have elevated workability, formability, machinability, fabricability, weldability, etc. Due to the fabricability property, these are easily modified into a complex design. Also, it can be processed from the standard machines. It has low machining cost because of good machinability. It is easily machined with adequate machining feeds and speeds. This gives high quality of surface finish.

Stub end is weldable and can be tightened with the threads.

Other Available Products of Stub End

Stainless Steel Buttweld Equal Cross Alloy Steel F5 Butt Weld Stub End High Nickel Alloy Buttweld Equal Cross
SS 304 Butt Weld Stub End Alloy Steel Buttweld Equal Cross Nickel Buttweld Equal Cross
Stainless Steel 310 Buttweld Equal Cross Alloy Steel F11 Buttweld Equal Cross Monel Butt Weld Equal Cross
Duplex Steel Butt Weld Stub End A403 Alloy Steel F22 Buttweld Stub End B366 Inconel Buttweld Stub End
Super Duplex Steel Buttweld Equal Cross ANSI B16.9 Alloy Steel Butt Weld Equal Cross Incoloy Buttweld Equal Cross
254 SMO Butt Weld Equal Cross A420 Carbon Steel Buttweld Equal Cross Copper Nickel Buttweld Degree Equal Cross
ANSI B16.9 904L Buttweld Equal Cross CS WPL6 Buttweld Equal Cross ANSI B16.9 Alloy 20 Butt Stub End

Stub End Application

  • Oil and Gas equipments
  • Offshore Technology
  • Seawater Desalination Plants
  • Chemical Industry
  • Airport, Malls, Buildings
  • Storage Tanks
  • Medical Industry
  • Civil Engineering
  • Pressure vessels, Reactor tanks, and Heat exchangers
  • Rotors, impellers and shafts
  • Power Plants
  • Petrochemical
  • Shipbuilding Industry
  • Mining Industry
  • Food Equipments Industry

Test Certificates

We Stub End with the following details Mill Test Certificate according to EN 10204 3.1, PMI Test, Test Report from NABL Approved Lab, 3.2 Certification by External Testing Authority third, ultrasonic test report, and X-ray report.

Quality Assurance

At Stub Ends all types of Such as from raw material purchase to production and product shipping. They are visually inspected for compliance with ASTM, ASME, DIN, EN and JIS codes and standards. We can also designate certified official testing agencies upon customer request so that they can witness the product's material, size and quality compliance reports.

Marking & Packing

Our Stub End is packaged to ensure no damage during transit. In the case of export, the standard export packing is in a wooden box. All Stub Endare marked with our grade, batch number, size and mark. We can also do custom branding on our products as per buyer's unique requirements

Supplying Stub End to Countries -

We Export Stub End to Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen, Syria, Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Mayanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States of America, Canada, Mexico, Panama, Costa Rica, Puerto Rica, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherland, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, Europe, Africa, Asia, North America, South America, Middle East, Far East Etc.

Distributing Stub End to Cities -

We Export Stub End to Navi Mumbai, Indore, Baroda, Muscat, Secunderabad, Gimhae-si, Kanpur, Colombo, Kuala Lumpur, Bhopal, Pimpri-Chinchwad, Rajkot, Haryana, Hanoi, Ernakulam, Chandigarh, Surat, Los Angeles, Hong Kong, Ahmedabad, Perth, Petaling Jaya, Hyderabad, Mumbai, Algiers, Edmonton, Ludhiana, Ho Chi Minh City, Karachi, Bangkok, Dallas, Bengaluru, Jakarta, Granada, Seoul, Cairo, Geoje-si, Rio de Janeiro, Abu Dhabi, Port-of-Spain, Sydney, London, Courbevoie, Vung Tau, Sharjah, Jaipur, Lahore, Chennai, Istanbul, Lagos, Thane, Dubai, Coimbatore, La Victoria, Calgary, Jeddah, Busan, Mexico City, Al Khobar, Caracas, Singapore, Atyrau, Manama, Kolkata, Riyadh, Jamshedpur, Brisbane, Toronto, Noida, Ahvaz, Vadodara, Doha, Visakhapatnam, Ulsan, New Delhi, Gurgaon, Bogota, Howrah, Moscow, Nashik, Ranchi, Nagpur, Al Jubail, Houston, Milan, Chiyoda, Aberdeen, Melbourne, New York, Dammam, Montreal, Santiago, Kuwait City, Pune, Tehran, Thiruvananthapuram, Faridabad, Madrid, Ankara Etc.

Frequently Ask Questions (FAQ)

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