Jump to content
I Forge Iron

Fluxes


Recommended Posts

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

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

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

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...