Stainless Steel ER347Si Filler Wire is a columbium-stabilized stainless steel welding wire used to weld Types 321 and 347. Addition of columbium reduces the possibility of chromium carbide precipitation and consequent intergranular corrosion. The higher silicon content improves the welding properties giving better weld flow & smoother weld beads. SS 347Si Wire has excellent general corrosion resistance. Typical service temperatures are in the range -100 degrees C up to 400 degrees C, although higher carbon batches (>0.04%C) are suitable for use above 400 degrees C.
ER347Si Welding Wire is recommended if the weld metal is to be subjected to high temperatures above 750 degrees F. Stainless Steel ER347Si Filler Wire is used for welding Nb, and Ti stabilised 18% Cr-8% Ni austenitic stainless steel base materials. SS ER347Si Welding Wire has superior resistance to general corrosion and is used in many applications in the chemical, petrochemical, food, brewery and nuclear indus