Microstructure, mechanical properties, and corrosion resistance of supermartensitic steel UNS S41426: comparison between forged and hot-rolled seamless pipe

Baptista, Ilson Palmieri; Pimenta, Alexandre Dias; Heringer, Magno de Assis Verly; Pérez, Gerónimo; Tavares, Sérgio Souto Maior

doi:10.1007/s00170-022-10290-4

Cited by 5 publications

(1 citation statement)

References 36 publications

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“…The defects arise from the production of pipes, and the characteristics of the defects are different at different stages of manufacture. Therefore, it is of great significance to analyze the characteristics of defects, find out the causes of defects and take necessary quality assurance measures to improve the quality of pipes and ensure the safety of pipeline operation [1][2][3][4][5][6][7]. Ф325 mm × 10 mm 20 steel seamless steel pipe was produced by a factory in 2013.…”

Section: Introductionmentioning

confidence: 99%

Cause Analysis of Leakage Failure of Seamless Steel Pipe during Pipeline Pressure Test

Xu,

Nie,

Feng

et al. 2023

J. Phys.: Conf. Ser.

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By means of chemical analysis, tensile test, metallographic analysis, and energy spectrum analysis, the leakage causes of seamless steel pipe in the process of pipeline pressure test were analyzed. The analysis shows that the crack of steel pipe appears before rolling, and the non-metallic inclusions near the crack are the crack source or preferred path of steel pipe cracking. The leakage of steel pipe defects in the subsequent eddy current and ultrasonic inspection is one of the main reasons the unqualified steel pipe flows into the construction site and leads to the leakage of the pressure test.

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