Title:
STEEL WIRE FOR GAS-SHIELDED ARC WELDING, GAS-SHIELDED ARC WELDING METHOD, AND METHOD FOR MANUFACTURING GAS-SHIELDED ARC WELDED JOINT
Document Type and Number:
WIPO Patent Application WO/2021/125280
Kind Code:
A1
Abstract:
Provided is a steel wire for gas-shielded arc welding. The present invention is a steel wire for welding comprising a steel outer sheath and a filling material contained within the steel outer sheath. The steel outer sheath has an outer sheath composition containing 0.005-0.20 mass% REM with respect to the entire mass of the steel outer sheath. The steel wire for gas-shielded arc welding has a composition containing, with respect to the total of the entire mass of the steel outer sheath and the entire mass of the filling material, 0.01-0.30 mass% of C, 0.10-5.00 mass% of Si, 0.5-5.0 mass% of Mn, 0.050 mass% or less of P, 0.050 mass% or less of S, 0.004-0.18 mass% of REM, 3.0 mass% or less of Cr, 3.0 mass% or less of Ni, 0.02-1.5 mass% of Mo, 3.0 mass% or less of Cu, 0.0001-0.005 mass% of B, 0.02-0.40 mass% of Ti, 0.001-0.20 mass% of Al, and 0.0008 mass% or less of Ca, the remainder being composed of Fe and inevitable impurities.
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Inventors:
KOZUKI SHOHEI (JP)
WATANABE KAZUFUMI (JP)
HAYAKAWA NAOYA (JP)
MURAKAMI YOSHIAKI (JP)
OI KENJI (JP)
WATANABE KAZUFUMI (JP)
HAYAKAWA NAOYA (JP)
MURAKAMI YOSHIAKI (JP)
OI KENJI (JP)
Application Number:
PCT/JP2020/047208
Publication Date:
June 24, 2021
Filing Date:
December 17, 2020
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B23K35/30; B23K9/173; B23K35/368
Domestic Patent References:
| WO2015068443A1 | 2015-05-14 |
Foreign References:
| JP2012130967A | 2012-07-12 | |||
| JP2008093715A | 2008-04-24 | |||
| JP2011152579A | 2011-08-11 | |||
| JP2004249352A | 2004-09-09 |
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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