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Stub Ends, Lap Joint Stub End’s

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Stub Ends, Lap Joint Stub End’s


Stub End Manufacturers, Lap Joint Stub End with Flanges

Metline is a trusted manufacturer and supplier of lap joint stub end fittings in compliance with ASME/ANSI B16.9, ANSI B16.28, MSS-SP-43. We specialize in the manufacture and export of carbon steel stub ends, alloy steel stub ends and stainless steel stub ends in both long and short pattern.

A stub end is always used with a lap joint flange, as a backing flange. Stub ends are manufactured in all standard wall thicknesses, and available in sizes ranging from 1/2″ to 48″. The dimensions for stub ends and related dimensional tolerances are defined in the ASME B16.9 standard. Light-weight corrosion resistant Stub Ends (fittings) are defined in MSS SP43. Stub ends are generally available in two lengths, MSS (Standard Length) and ANSI (Long Length).

Why Choose Metline, as Your Source for Stub Ends or Lap Joint Stub Ends with Flanges?

  1. More Than 3 Decades of Experience in Stock & Supply of Stub Ends
  2. Best Prices For Stub Ends Manufactured by Metline and Exported Worldwide
  3. Exporting Stub Ends is Our Specialty
  4. We Can Handle the Logistics for You – We can offer Exworks, FOB, CFR, CIF Delivery to Any Port
  5. Documents We Provide Include – Certificate of Origin, Invoice & PL Attested by Chamber of Commerce, Test Certificates as per EN 10204 3.1, Other Testing Reports, as may be Required by Our Customers.
  6. Complete Traceablility for Stub Ends – All Our Products will have Complete Marking, and the Details can be co-related to the Test Certificates.
SKU: TMF1477 Categories: ,


Manufacturers & Suppliers of Stub Ends – Buy Lap Joint Stub Ends with Backing Flanges!

Metline is a specialist manufacturer of stub ends as per ASTM, ASME and DIN standards for customers and buyers worldwide. Metline offers stub ends in basically three types explained as below:

  • Type A – Type “A” Stub Ends are for use with standard Lap Joint Flanges.  The Lap thickness on the Stub End is greater than, or equal to, the nominal thickness of the pipe wall.  Also, type “A” has its outside corner radius to receive Lap Joint Flanges. The inside corner is square.  The Lap generally has a machined serrated face.
  • Type B – Type “B” Stub Ends are for use with standard Slip-On Flanges acting as Lap Joint Flanges. The Lap thickness on these Stub Ends is greater than, or equal to, the nominal thickness of the pipe wall.  Also, Type “B” has an outside corner radius small enough to receive Slip-On Flanges that are being used as the Backup Flange. The inside corner is square.  The Lap generally has a machined serrated face.
  • Type C – Type “C” Stub Ends are for use with standard Lap Joint Flanges and Slip on Flanges.  The Lap of a Type “C” is flared leaving a rounded edge at the I.D. of the Lap. If required this radius can be made nearly square.  The Lap thickness is 75% of the pipe wall.  The Type “C” has a very short outside radius small enough to receive any back up flange.  The Lap face on a Type “C” is not machined and is smooth.

Production & Supply Range for Stub Ends

Product Stub Ends
Outside Diameter Seamless Pipe Stub Ends Welded Pipe Stub Ends
1/2″~24″, DN15~DN600 6″~48″, DN150~DN1200
Wall Thickness 2mm ~ 200mm
  • Stainless Steel Stub End; ASTM A403 WP Gr. 304, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L
  • Carbon Steel Stub End: ASTM A 234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.
  • Low Temperature Carbon Steel Stub End: ASTM A420 WPL3, A420 WPL6
  • Alloy Steel Stub End: ASTM / ASME A/SA 234 Gr. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91
  • Duplex Steel Stub End: ASTM A 815, ASME SA 815 UNS NO S31803, S32205. Werkstoff No. 1.4462
  • Nickel Alloy Stub End: ASTM / ASME SB 336 UNS 2200 ( NICKEL 200 ), UNS 2201 (NICKEL 201 ), UNS 4400 (MONEL 400 ), UNS 8020 ( ALLOY 20 / 20 CB 3, UNS 8825 INCONEL (825), UNS 6600 (INCONEL 600 ), UNS 6601 ( INCONEL 601 ), UNS 6625 (INCONEL 625), UNS 10276 ( HASTELLOY C 276 )
  • ASME: ANSI B16.9, ANSI B16.28, MSS-SP-43
  • DIN: DIN2605, DIN2615, DIN2616, DIN2617, DIN28011
  • EN: EN10253-1, EN10253-2
  • ASTM A403 – ASME SA403 – Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings
  • ASME B16.9 – Factory-Made Wrought Fittings Buttwelding
  • ASME B16.25 – Buttwelding Ends ASME B16.28 – Wrought Steel Short Radius Elbows and Buttwelding Returns
  • MSS SP-43 – Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications
Production Technique Forging, Pressing, Bending, Polishing
Application Power Generation, Oil and Gas, Petrochemical, Chemical, Shipbuilding, Heating, Papermaking, Metallurgy
Packing Wooden Pallets, or Wooden Boxes
Test Certificates EN 10204 3.1
Inspection Buyer Inspection or Third Party Inspection Allowed


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