Flange

Stub End

Stub Ends

Stub Ends

Lap joint stub ends are fittings used in place of welded flanges where rotating back up flanges are required or to minimize the weight of high-grade materials. The lap joint flange can be rotated on the pipe and simplify the alignment of the bolt holes of the mating flanges. Stub Ends typically come in two design categories; ASA B16.9 or MSS SP-43. These are often referred to as “long pattern” (ASA) or “short pattern” (MSS). The most requested design at Western Forge & Flange is typically the short pattern MSS style.

Stub End

Dimensions

  • B16.9 – ASA or MSS
  • ½” – 24″

24″ and larger available per customer specifications.

Primary Alloys Inventoried

  • Hastelloy – C276, B3, C22, C-2000, G-30, 230
  • Alloy 20, 200/201, 400, 600, 601, 625, 800HT, 825
  • AL6XN (N08367), 904L, 310, 317L, 321, 347
  • Duplex Stainless – 2205, 2507, 255
  • Titanium – Grades 2, 7, and 12
  • Aluminum Grades – 1100, 3003, 6061 and 5083
  • Chromes-Moly – F-5, F-9, F-11 and F-22

Other material available upon request

Compliance and Certifications

  • ISO 9001:2015, PED 2014/68/EU, Canadian Registration Numbers (CRN’s: Nuclear and Non-Nuclear), AIS, NCA3800, 10CFR50, 10CFR21, CSA N285.0, CSA B51, NQA-1, EB2678, MIL-I-45208A, DFARS, NACE, EN 10204 3.1

Discuss Your Project

Ready to move forward with your project? Take the next step by requesting a quote or talking directly to our experts about industry-specific needs.

Request a Quote