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Application Limits of Flux Cored Arc Welding to Chemical Processing Plants Sumitomo Chemical Co., Ltd. Process & Production Technology Center Takahisa HOSHIKA Hisakazu MORI High efficiency of Flux Cored Arc Welding (FCAW) extends its application to the every joint of the steel facilities and constructions due to economical benefit. Recently, some inconveniences such as low charpy impact energy, cracking in bending test of FCAW joints were experienced and a distinguished creep ductility loss for Type 304H was reported. Metallurgical examination revealed that high density of oxide inclusion in weld metal of FCAW resulted in a relatively inferior mechanical properties compared with other welding process. Welding test results are reviewed and the characteristics with application limits depended on welding conditions of FCAW are discussed. 2002-

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