Help getting info about weird artistic bolt hangers

Hey all,

I'm hoping someone can give me a little more information on a picture of an odd, sculpture-like bolt hanger that I found online. The picture included below was taken in the canton of Glarus, Switzerland:

Looks like a climber with a welder and an imagination made em.

Looks like a stock Petzl hanger with some artistic welding features. I may be wrong, but I am pretty sure welding on hangers would not be good for the tempering....

Little homey appears to be cheering you on through the next crux!

Manky wrote:...I may be wrong, but I am pretty sure welding on hangers would not be good for the tempering....

Crag Dweller wrote: that's the first thought that came to my mind. hopefully, one of MPS's resident mechanical engineer/materials science engineer/metallurgist types will chime in.

With very limited experience with welding, my guess is that the arms were likely soldered on. Does soldering generate enough heat to affect the properties of the hanger?

Since that hanger is likely 304 stainless steel (the only weldable type, I think), there is a good possibility that the arms were TIG welded in place and not soldered. *If* you could successfully mend those arms to stainless steel using solder (I don't think you could, since solder is relatively low heat), the connection would be extremely brittle (and would almost certainly break when bolted to the rock). As Simon said, the heat affected areas of an arc-type weld would be, in theory, of higher brittleness.

I'm an engineer, but not a subject expert, feel free to correct me. It's been a while.

Just a side note- it's entirely possible to use solder on stainless, provided a high silver content, proper flux and a goodly amount of heat.

I think god created it! Call me a creationist.

I'm more concerned with what is happening around the bolt hole. Looks like it was made bigger with a cutting torch?

And the penis nose is a bit disturbing... lol

Bill Olszewski wrote:I'm more concerned with what is happening around the bolt hole. Looks like it was made bigger with a cutting torch? And the penis nose is a bit disturbing... lol

R. Moran wrote:I think god created it! Call me a creationist.