FLUX CORED ARC WELD WIRE HAVING EXCELLENT WORKABILITY AND LOW-TEMPERATURE TOUGHNESS IN WELD METAL JOINT AND WELD METAL JOINT USING THE SAME

摘要

the present invention is a low-temperature toughness of welded joints can be improved flux cored arc welding wire and as to the welding using the same provide the vagina , by weight %, C: 0.01 ~ 0.1%, Si: 0.3 ~ 1.4%, Mn: 1.0 ~ 3.0%, Ti + TiO: 4.0 ~ 7.5%, Ni : 0.01 ~ 3.0%, B: 0.01% to 0.2% , and include , Y: 0.02 ~ 0.42% or REM:. 0.02 ~ 0.56% , and the remainder including Fe and inevitable provides the welding using a flux cored arc welding wire and it containing impurities vagina ;