"treebeard" wrote in message
...


On brazing stainless steel with nickel-silver brazing using O-A, does
anyone shield with CO2 (to make a cleaner braze?) or are flux coated
rods used?

Flux-coated rods, or bare rods with flux from a can. Experiment with
different brazing materials, including "silversolder", to see which you like
best. Silversolder is pricey by the ounce, but a little of it goes a long
way and it can be very strong. It also works well with stainless. It runs
at barely-red temperature, so distortion becomes a non-issue.

Flux removal will be an issue, is easily accomplished with boiling water.
Don't be stingy with flux. If you don't use enough it can load up with
oxides and be difficult to remove. Excess flux that isn't loaded is quite
easy to remove. Much or most of it will pop off if the joint is quenched
with a squirt of water after brazing.