Jack S Posted October 5, 2017 Share Posted October 5, 2017 Ok guys there is a lot of discussion about fluxes I would like to use a simple Flux Of just borax and boric acid what ratios do you all wear commend Link to comment Share on other sites More sharing options...
ThomasPowers Posted October 5, 2017 Share Posted October 5, 2017 Sort of depends on what alloys you will be using it on. I guess it's mild steel since you didn't say and I use straight 20MT borax for that. (And switch to the flux below if A36 is being a pain) For my BSB & PS billets I used 3 parts 20MT to 1 part Boric Acid (roach-prufe) Link to comment Share on other sites More sharing options...
Charles R. Stevens Posted October 5, 2017 Share Posted October 5, 2017 Steve Sells uses an exelent mix for chromium steels that is Borax, boric acid and an other chemical that is used as a plumbers flux. As I have a pea brain and TJ has my copy of Steves book, perhaps he will chime in and remind us all of the mix. I know he has shared it befor but my search-foo hasn't turned it up. Link to comment Share on other sites More sharing options...
ThomasPowers Posted October 5, 2017 Share Posted October 5, 2017 sal ammoniac ? JPH's "steel glue" flux has been posted here before. Link to comment Share on other sites More sharing options...
Frosty Posted October 5, 2017 Share Posted October 5, 2017 Welcome aboard Jack, glad to have you. If you'll put your general location in the header you might be surprised who lives within visiting distance. My old standard was 3-4 pts. 20 MT borax to 1pt. boric acid. I've since switched to Peterson #2 flux, it's off the shelf welding, brazing, etc. flux from the local welding supply. It seems to work as well as any of the newer recipes for "forge welding" flux you can get for much more money at blacksmith supplies online. If you're going to weld stainless you have to use a more aggressive flux than sal amoniac and more toxic. Think about serious respirator, supplied air and specialty filters. Cutting through chrome oxides takes serious stuff not to mention letting hexavalent chrome get in you. It's a nasty cancer risk. Frosty The Lucky. Link to comment Share on other sites More sharing options...
Charles R. Stevens Posted October 6, 2017 Share Posted October 6, 2017 Bingo! Than you TP Link to comment Share on other sites More sharing options...
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