Which filler to be use for SS410 to SS 304 stainless steel plates?

When welding SS410 to SS304 stainless steel plates, a suitable filler metal is typically an ER308 or ER308L stainless steel wire. This filler provides good corrosion resistance and compatibility with the austenitic structure of SS304 while allowing for the martensitic nature of SS410. It's important to consider preheating and post-weld heat treatment to prevent cracking and ensure the integrity of the weld.