MCAA
Who We Are / News / NCPWB Technical Bulletin Focuses on Failures in Seamless Carbon Steel Pipe, Fittings, Flanges

NCPWB Technical Bulletin Focuses on Failures in Seamless Carbon Steel Pipe, Fittings, Flanges

May 16, 2016

A Technical Bulletin just issued by the National Certified Pipe Welding Bureau (NCPWB) concerns failures in seamless carbon steel pipe, fittings and flanges during hydrostatic testing due to changes in steelmaking practices by certain mills over the last five years. The Bulletin recommends that, except when the piping system hydrostatic test pressure is less than 20% of the code maximum allowable pressure, contractors should include a requirement in their purchase orders that seamless carbon steel pipe, fittings and flanges have a manganese-to-carbon ratio of 5:1 or greater and a grain size of 7 or finer to avoid such failures. Find out more by clicking on the link below.

NCPWB Technical Bulletin

Related Articles
NCPWB Technical Bulletin Summarizes Changes to ASME Section IX, 2021 Edition
A Technical Bulletin just issued by the National Certified Pipe Welding Bureau (NCPWB) addresses significant changes made in ASME Section IX, 2021 edition, that are of interest to mechanical contractors and piping fabricators. Opinions expressed in this article are Mr. Sperko’s, not the official opinion of ASME BPV Standards Committee IX. These changes become mandatory for new qualifications January 1, 2022. …
Resource Highlight: NCPWB’s Tools to Reduce the Cost and Risk Associated with Welding and Brazing
Each week, MCAA will highlight one or more of the educational resources that are free to MCAA members as a benefit of membership. This week, we focus on Tools to Reduce the Cost and Risk Associated with Welding and Brazing. This resource highlights the many ways that the National Certified Pipe Welding Bureau (NCPWB) keeps contractors informed about welding and brazing technology, and simplifies welding and brazing qualification practices.…
Three NEW NCPWB Webinar Resources on Piping Codes, ASME Code Welding Requirements & Internal Oxidation with Walter Sperko
Visit the Resource Center to view our three new NCPWB webinar resources on piping codes, ASME code welding requirements and internal oxidation with Walter Sperko. Walter J. Sperko is president of Sperko Engineering Services, Inc., who provides engineering consulting services to customers in the metal fabrication industries in welding, metallurgy, manufacturing processes, piping and pressure vessel design, inspection and quality assurance.…
Report Shows MCAA Members Don't Invest Enough in Tech Budget and Manpower
The newly released MCAA-Focused Construction Technology Report produced by JBKnowledge reveals that MCAA members are advanced in BIM and other technology solutions but are underspending on research and development compared to the rest of the construction industry.…

MCAA News Follow 2,406 1,291

MCAA is a national trade association representing the industry’s most innovative and forward-thinking mechanical construction, plumbing and service firms.

MCAANews
Load More...
×