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The EPRG Recommendations for Crack Arrest Toughness for Line Pipe Steel (Third Edition)

[+] Author Affiliations
Andrew Cosham

Ninth Planet Engineering, Newcastle upon Tyne, UK

Robert Andrews

ROSEN UK, Newcastle upon Tyne, UK

Tanja Schmidt

Vallourec, Düsseldorf, Germany

Paper No. IPC2018-78043, pp. V003T05A001; 11 pages
  • 2018 12th International Pipeline Conference
  • Volume 3: Operations, Monitoring, and Maintenance; Materials and Joining
  • Calgary, Alberta, Canada, September 24–28, 2018
  • Conference Sponsors: Pipeline Division
  • ISBN: 978-0-7918-5188-3
  • Copyright © 2018 by ASME


The third edition of the EPRG recommendations for crack arrest toughness for line pipe steels is presented. The third edition extends the applicability of the recommendations to pipelines transporting lean natural gas at pressures up to 100 barg (1450 psig), in diameters up to 1422.4 mm (56 inch), in grades up to Grade L555 (API 5L X80), and design factors up to 0.8.

A quantitative definition of a lean gas is included in the third edition.

The recommendations are intended to be applied to new pipelines. The recommendations are not intended to be applied retrospectively to existing pipelines.

Copyright © 2018 by ASME



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