TIG filler questions

I am finally breaking down and ordering a box of ER70-2. My local welding
store does not carry anything else (and often doesn't bother to stock
ER70-2!). I wonder if I should get a small quantity of ER70-6. Will it
make much of a difference on the odd occasion when I have to weld something
Also, does silicon bronze come in .045--sizes less than 1/16? I have some
thin stainless to work on.
David Todtman
Reply to
David Todtman
Loading thread data ...
Hard to believe a store doesn't stock ER70S-2. You can order small quantities from
formatting link

S-6 does work, but be careful about silica slag deposits on the surface if you are doing a multipass weld.
I wish S-3 hadn't disappeared from the market. It was useful stuff.
If you are ordering from tigdepot.com, go ahead and buy 1 lb. of ER80S-B2. It is great stuff for 4130 chrome-moly, and for TIG welding bandsaw blades.
I have it in 0.045" and 1/16".
BTW the "B" in the S-B2 suffix means it has a little chromium and molybdenum added, hence why it is so good on 4130.
Reply to
Ernie Leimkuhler
If you don't use much, why not go for the ER70-6. It has better high silicon and manganese deoxidizer levels, better weld flow out, and higher tolerance for mill scale. -6 is better than -2 on dirty material but neither is any match for a good stick rod like 6011
David Todtman wrote:
Reply to
Opps, you said TIG, cancel the last reply!! I was talking about MIG.
RoyJ wrote:
Reply to
Thanks for the reply including additional information. I didn't know I wanted those answers too, but I did now that I know.
More questions:
Most useful (compared to S-2) for what? It is listed in the Air Liquide handbook "Welding Processes and Fillers Metals Data Book" (published 1995). I have not talked with Air Liquide so do not know if it is still carried.
This reads as a good idea. I presume the 0.045 is the size for bandsaw blades. Eh?
Finally, I guess you missed my question about silicon bronze. Is it available in .045" spools or cut lengths? While I am at this, I have never heard of MIG brazing. Is there such a process?
Ciao, David
Reply to
David Todtman
It was used as a step between S-2 and S-6. More deoxidizers than S-2, but less slag than S-6
0.045" and 0.035" are useful for bandsaw blade welding.
Yes you can get small 2 lb. spoolgun spools of silicon bronze wire for TIG brazing. 0.035" and 0.045" are useful.
I have done a lot of MIG brazing, especially on stainless steel. Less heat distortion than welding and no burn through. I did it with my readywelder to assemble 180 feet of stainles steel railings. Use Argon or Argon/Helium gas.
Reply to
Ernie Leimkuhler

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.