Nihonweld NSF-SS/NSW-309 description:
AWS Specification: ER-309
JIS Specification: NONE
Other Specification: FOR STAINLESS STEEL
FLUX USED: NSF-SS
WIRE USED: NSW-309
APPLICATION:
Agglomerated bonded type flux. For 22%Cr-12%Ni stainless steel and dissimilar steels welding.