A question was recently received on a blog that we posted back in May of 2009. Our answer is posted here, and it is being called “part 3” because we are continuing the 2009 discussion.

Deaths from argon inhalation happen far too frequently in the metals industry, and the main reason for it is lack of awareness.

Argon is a favorite gas used in many vacuum brazing shops since it is an inert gas that will not react with any of the metals being heat treated or brazed in those vacuum furnaces.

It should never be “necessary” to refrigerate brazing pastes prior to their use.

There is a lot of interest today in joining engineered-ceramic materials (such as alumina) to themselves or to metals.

It is sometimes surprising to hear people use the term "defect" when referring to simple, non-critical imperfections in a brazed joint.

There is a lot of interest today in joining engineered-ceramic materials (such as alumina) to themselves or to metals.

Question:We do torch brazing of copper and steel tubing/piping for the HVAC industry, and we try to do a nitrogen purge of the ID of the tubing during our

Question: We silver brazed what we thought was a so-called “oxygen-free” grade of copper (C10200) in our hydrogen brazing furnace at 1500°F (815°C) – using BAg-8 filler metal –