1. I want to join 304 stainless steel to copper, can I utilize vacuum brazing for this? Yes. 304 stainless steel may be effectively vacuum brazed to copper using various braze filler metal (BFM) types and chemistries. Filler metals based on gold, silver, and nickel can work. Careful attention must be given to the joint … Continue reading Ask the Expert: Solar Atmospheres Director of Sales Answers Questions About Vacuum Brazing