Introduction:

AWS A5.9 ER309.  The main ingredient is 22Cr-12Ni, stainless steel MIG wire, can be used for all-position welding. It has excellent welding performance, smooth and beautiful bead and fewer spatters, deposited metal contain Ferritic, has good performance on crack resistance and corrosion resistance. due to the high content of the alloy, so have good preformance of temperature resistance.

Application: 

Used for welding carbon steel and stainless steel dissimilar materials or applied to poor toughness martensite, pearlite stainless steel. Applications such as petrochemical, fire station and other industries.