Stub Ends

Industrial Pipe Stub Ends for the Nuclear Power and High-Pressure Piping Industries

Colonial Machine supplies carbon steel stub ends to a large portion of the industrial piping industry. We offer a large ready-to-ship inventory at competitive prices.


Quality Standards

Carbon steel stub ends manufactured to ANSI Standard B16.9 and certified to A234 and SA234 WPB and WPBW-UT.

SA420 WPL6 stub ends are also of our manufacture.

Stub ends over 18” are welded. All welded stub ends are U.T. tested by our audited and approved strategic partners.

Stub ends 18” or under XH can be welded or seamless.

Mill test reports on request.

All stub ends are manufactured in our facilities in Pleasantville, Pennsylvania.

Product Specifications

Dimensions & Capabilities

  • MSS and ASA lengths from 1/2” to 38” pipe size in Schedule 40 (Standard) and Schedule 80 (Extra Heavy) wall thicknesses.

  • Larger sizes are available in MSS length.

  • We are able to supply all wall thicknesses and non-standard lengths.
  • We carry a wide inventory of Type A butt weld stub ends and are able to meet many of our customer’s needs within 2-3 days of receipt of order.

  • Non-stock items can be manufactured at the customer’s request.

  • Type B Stub Ends, taper-bored stub ends, and threaded stub ends are available to be quoted.

Materials Available

Standard / in stock:

  • A/SA105 round bar

  • A/SA106 pipe

  • A/SA 519 1026 tube

  • Stub ends can be manufactured from other materials, are not carried in stock and can be quoted at a customer’s request.