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ASME B16.25

2012 Edition, January 1, 2012

Complete Document

Buttwelding Ends

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Referenced Items:

ANSI B16.28
ANSI B16.5
ASME B16.9
ASME B36.10M

Product Details:

  • Revision: 2012 Edition, January 1, 2012
  • Published Date: December 20, 2012
  • Status: Active, Most Current
  • Document Language: English
  • Published By: ASME International (ASME)
  • Page Count: 32
  • ANSI Approved: Yes
  • DoD Adopted: Yes

Description / Abstract:


This Standard covers the preparation of buttwelding ends of piping components to be joined into a piping system by welding. It includes requirements forwelding bevels, for external and internal shaping of heavy-wall components, and for preparation of internal ends (including dimensions and tolerances). Coverage includes preparation for joints with the following:

(a) no backing rings

(b) split or noncontinuous backing rings

(c) solid or continuous backing rings

(d) consumable insert rings

(e) gas tungsten arc welding (GTAW) of the root pass

Details of preparation for any backing ring must be specified when ordering the component.