Stainless steel flux cored wire is widely adopted at many fields such as petrochemical, pressure vessel, ship building, and machinery industries. This is mainly because of its superior weldability, stable mechanical performance, and high productivities.There are cracks discovered after weld at the high working temp. 700℃ or higher on conventional austenite stainless steel joints.It is because of conventional stainless steel flux cored wire contains a minute of Bismuth oxide, so Sorex develops Bi-free type wire to improve it.