JAPANESE LPG TANKER CONSTRUCTED USING A NEW WELDING PROCESS AND IMPROVED AL-KILLED STEELS

The Authors describe a high-productivity MIG welding technique developed to increase the safety of ship structures. This process, first reported in 1975, was applied to one-sided welding of butt joints in Al-killed steels for low-temperature service and resulted in nearly the same productivity as that for the multi-wire submerged-arc process. Satisfactory high levels of notch toughness were obtained, not only in the centre of the weld metal but also in the HAZ, resulting from a significant reduction in welding heat input. Based on these results, a technical survey was conducted to cope with the toughness requirements for LPG ships proposed by IMCO and a new Al-killed steel with excellent HAZ toughness has been developed for the construction of a 76,000-cu m LPG carrier.

  • Corporate Authors:

    Welding Institute

    Abingdon Hall
    Cambridge CB1 6AL,   England 
  • Authors:
    • Onoe, H
    • TANAKA, J
    • WATANABE, E
  • Publication Date: 1979-1

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00310773
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: May 7 1980 12:00AM