An evaluation of the expected gains when choosing API 5L Grade X80 steels were done, regarding reduction of costs and pipe weight. At the design stage, a comparison between pipelines designed using API 5L-X70 and API 5L-X80 was carried out approaching the aspects of variation of thickness, pressure design and design factor. H - 2004 Dec) and the experience consolidated in pipelines construction abroad were presented. The implications in cost, productivity, inspection and integrity, with the application of these high resistance steels, complying with PETROBRAS Standard N - 464 Construcao, Montagem e Condicionamento de Dutos Terrestres (Rev. In the pipeline construction point of view, the use of line pipes API 5L Grade X80 provide some advantages, however some difficulties must be expected in several stages of the construction and assembly. The use of line pipes API 5L Grade X80, at the point of view of designer allows: reduction of wall thickness and pipe weight or increase of design pressure.
[PETROBRAS S.A., Rio de Janeiro, RJ (Brazil) X80Įnergy Technology Data Exchange (ETDEWEB)
Construction and assembly of pipelines using API 5L grade X80 tubes - considerations to be observed with high-strength steels Construcao e montagem de dutos terrestres utilizando tubos API 5L Gr.
