WELDING OF X100 PIPELINE STEEL

Abril 2007

The need to transport natural gas from remote locations is posing increasing demands on transmission infrastructures, based on off and onshore pipelines, which can transport high quantities of fluids in a safe and economic way; it is this criteria that creates greater demands for high integrity materials. Welding of pipelines has been an important topic of research at least since the 70?s, when GMAW was implemented for mainline production. Mechanized, high productivity welding processes present the combined advantages of being economic and possible to use in difficult environments where human life is not possible. The need for higher productivity mechanized welding has put stringent requirements for the researchers and examples of results achieved, are the narrow gap welding processes , with dual torch and tandem wire and wire recently the laser/MIG hybrid techniques discussed in this paper. The challenge is to produce pipelines in an economic way with the strength levels desired coupled with the highest possible toughness and weldability. This paper presents an analysis of the possibility of X100 steel for pipeline construction. Welding parameters and mechanical properties are evaluated.

Autores da comunidade :

• 

  M

  Maria Luisa Coutinho Gomes de Almeida

  ist11722

  Afiliações e fontes

  IST > LAETA

  Laboratório Associado de Energia, Transportes e Aeronáutica

  IST > IDMEC

  Instituto de Engenharia Mecânica

  IST > DEM

  Departamento de Engenharia Mecânica

This information is not available. Please contact the author for more information.

Cuzco, Peru

eng - Inglês