Steel structure API 5L GR. 65 soldier with electric arc and coated electrode

Authors

  • António Quizila-Ricardo Universidad de Moa, Moa
  • Tomás Fernández-Columbié Universidad de Moa, Moa

Keywords:

structure, API 5L, pipe, cord zones, encapsulated.

Abstract

The structures generated in the area of the strand of an API 5L Gr. 65 pipe steel of 100 mm in diameter and 7 mm in thickness, welded with an E 7018 electrode of 4 mm in diameter, were determined. For the deposit of the cords, the preparation was carried out at the top with a 60o bevel, samples were cut for hardness tests, chemical composition and observation with light microscopy, all of them were encapsulated with ROYAPOX-5050 resin. In the first cord the structures obtained are made of ferrite + pearlite with fine grain in the molten zone and the one affected by heat, not being the case at the interface where the grains are coarser, in the second the same structures are obtained, but from smaller grains due to multipass welding. It is determined that the hardness in the first cord is 238 HV, which decreases in the 2nd to 217 HV, this property being affected by the effect of heat.

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References

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Published

2021-11-02

How to Cite

Quizila-Ricardo, A., & Fernández-Columbié, T. (2021). Steel structure API 5L GR. 65 soldier with electric arc and coated electrode. Ciencia & Futuro Is a Peer-Reviewed Electronic Journal Published Quarterly by the University of Moa. Its Objective Is to Disseminate Scientific Research in Various Fields of Technical Sciences. It Is Aimed at Researchers, Professionals, Academics and Students. It Has an International Reach and Maintains an Ongoing Call for Papers., 11(3), 48–60. Retrieved from https://revista.ismm.edu.cu/index.php/revistacyf/article/view/2093

Issue

Section

Ciencia Universitaria

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