Any suggestions? Making SCA coronets, and need to solder internally
threaded tubes to the inside. No access to TIG at the moment. Lower
temps mean less cleanup. Plus I'm looking a .100" OD tubing threaded to
Good agressive flux?
How about some Air conditioning brazing sticks. Lower temp and self fluxes.
Try on scrap.
Martin H. Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
TSRA, Endowed; NRA LOH & Patron Member, Golden Eagle, Patriot's Medal.
NRA Second Amendment Task Force Charter Founder
IHMSA and NRA Metallic Silhouette maker & member.
Todd Rich wrote:
Physically clean (abrasion, wire-brushing) and chemically clean (flux).
I'd actually suggest 95-5 tin antimony over electrical solder for this
job. One approach to the cleaning is to wire-brush (or scotch-brite)
with flux already in place, so the flux keeps the oxygen off the freshly
abraded area to some extent. The best low-temp soldering flux I've used
for stainless was Eutectic Castolin 157, but that was decades ago, and
products may have changed. It was a pink liquid, and was fairly nasty as
you'd expect a very aggressive flux to be. A web search says they still
Zinc chloride (generically "acid flux") is probably the most easily
available somewhat aggressive flux, and should work if you are careful.
When soldering, use a torch, and stay in the reducing region of the
flame - if you have an OA torch, use a long soft feather (rich mixture).
Good ventilation would be a smart move.
Clean up well afterwards, if you succeed. Anything nasty enough to
effectively flux stainless is not something you want to leave on the end
Pewter would offer a much more period sort of product that would be also
be easier to work with, if you care about that at all.
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