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Patent Searching and Data


Title:
FLUX CORED WIRE FOR ELECTRO-GAS ARC WELDING
Document Type and Number:
Japanese Patent JP2020157315
Kind Code:
A
Abstract:
To provide a flux cored wire for electro-gas arc welding capable of obtaining a weld metal that is good in welding working performance and superior in low-temperature toughness such as arc stabilization in the large heat input 1-pass welding of a steel plate.MEANS: In a flux cored wire for electro-gas arc welding formed by filling flux in a steel sheath, in mass% to the wire total mass, the total of the steel sheath and the flux of C: 0.02-0.10%, Si: 0.3-1.1%, Mn: 1.8-3.3%, Mo: 0.2-0.8%, Ti: 0.05-0.25%, B: 0.004-0.020%, and the total of 1-kind or 2-kinds of Al and Mg: 0.1-0.3% are contained. Further, in mass % to the wire total mass, CaF2: 0.2-0.8%, NaF: 0.1-0.6%, and the total for Fe in the iron powder and for Fe in the iron alloy: 15-25% are contained in the flux. The total of the metal oxide is 0.08% or less.SELECTED DRAWING: None

Inventors:
SASAKI MASAHITO
IWAGAMI TOMOKATSU
NAKAO NORIFUMI
Application Number:
JP2019056575A
Publication Date:
October 01, 2020
Filing Date:
March 25, 2019
Export Citation:
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Assignee:
NIPPON STEEL WELDING & ENG COLTD
International Classes:
B23K35/368; B23K35/30
Attorney, Agent or Firm:
Yasuhiko