leader lead solder

[DrTimPerkins]

Do you know why stainless welding took so long to establish itself?

Soldering tolerances are huge -- if it's within a 1/2", no problem...and segments are often bent to angles and soldered together, so there's a good bit of leeway in the system. Welding tolerances are more like 1/16" and alignment is critical in thin metal. Very little hand-cutting any longer either -- most SS cutting for evaporators, tanks, hoods, etc. is done by laser. It takes a lot more training and a lot more experience (and a lot LESS coffee) to be a good welder.

[Haynes Forest Products]

From what I have seen is that unless the two edges are touching its not close enough. I my understanding is they don.t use rod to fill in the weld its all blending what is there. Now I'm not saying all people do it that way. You can tell the difference in the weld if filler rod is used. Plus if the welder is breathing steady or held their breath.

[Johnjenner]

Just tested pans made in 1994 and they tested positive for lead