Summary
The discovery of oil and natural gas in severe climate conditions such as arctic regions has resulted in more-demanding mechanical property requirements for high-strength linepipe steels. These steels should have higher strength and toughness as well as excellent weldability. New high-strength, low-alloy (HSLA) steels for linepipe have been developed from the laboratory to full-scale production with astonishing speed in the last decade. These steels can be divided into three categories based on the microstructure, namely, ferrite-pearlite steels, acicular ferrite or bainitic steels, and multiphase steels. The physical metallurgy of these steels is reviewed and discussed, with emphasis on processing, structure-property relationship, and response to the U-O-E pipe forming process.
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Kim, N.J. The Physical Metallurgy of HSLA Linepipe Steels—A Review. JOM 35, 21–27 (1983). https://doi.org/10.1007/BF03338239
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DOI: https://doi.org/10.1007/BF03338239