Low temperature tensile properties of line pipe steels

Given the expected increase in Arctic oil and gas exploitation, there is a demand for high-strength line pipe steels able to cope with the Arctic climate. The state-of-the-art of the tensile properties of API 5L steels at low temperatures is reviewed and discussed. Well-known characteristics such as...

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Bibliographic Details
Main Authors: Tubex, Harold, Van Minnebruggen, Koen, De Waele, Wim
Other Authors: Hertelé, Stijn, van wittenberghe, jeroen
Format: Article in Journal/Newspaper
Language:English
Published: Ghent University, Laboratory Soete 2015
Subjects:
Technology and Engineering
Arctic temperatures
line pipe steel
strength
ductility
Arctic
The ''Y''
Online Access:https://biblio.ugent.be/publication/6868809
http://hdl.handle.net/1854/LU-6868809
https://biblio.ugent.be/publication/6868809/file/6868831
Description
Summary:Given the expected increase in Arctic oil and gas exploitation, there is a demand for high-strength line pipe steels able to cope with the Arctic climate. The state-of-the-art of the tensile properties of API 5L steels at low temperatures is reviewed and discussed. Well-known characteristics such as an increase in strength and Young’s modulus with decreasing temperatures are confirmed. The Y/T ratio is fairly unaffected by changes in temperature. Lüders elongation manifests itself at low temperatures where the Lüders plateau tends to increase. Conflicting statements about the relation between ductility and temperature were found. Altogether, quantifiable test results are scarce, especially for the high strength grades from API 5L X90 grade onwards. The urgent need for more tensile strength and ductility data of these steels at low temperatures is stated and defended.

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