Bolt Hanger Failure. Everyone who's bolting - check this out

[aidasr]

http://ontarioclimbing.com/forum/index. ... opic=142.0

[Fred]

aluminum hanger... not as ductile as steel

[chossmonkey]

Engineers and their fancy words.






I've only skimmed, but it seems it may be something to do with two dissimilar metals speeding the corrosion of the aluminum.

[SeanM]

Absolutely. Aluminum and steel together in a wet environment makes a battery, essentially. The aluminum is sacrificed and slowly eaten away, resulting in pitting and degradation. Its why they use aluminum slugs as "sacrificial anodes" on boat hulls and engines, as well as bridge structures. The aluminum is eaten away by acting as the anode of the very basic battery, and the steel is left untouched. I can't believe that no design engineer at Kong caught this rather glaring error, unless these hangers were only intended for gym usage.

[sand]

SeanM, How do you know so much about my job??

[SeanM]

I'm a student of the sciences

Also, I watch a lot of semi-educational TV.

Also, I like to show off my knowledge of stuff at the drop of a hat. Any hat.

[Adam]

I'm a student of the sciences

Also, I watch a lot of semi-educational TV.

Also, I like to show off my knowledge of stuff at the drop of a hat. Any hat.

Also, this is the interweb.

[Zamboni]

Semi-educational TV! Did you donate to PBS this year?

[sand]

Thought you might have been a fellow sailor!
TV....maybe someday we'll have to get it?!