Old carabiner

[cavemanmike]

If you want corrosion you should have seen some of the pegs me and a mate ended up clipping on Gogarth 

That why you should do gogarth trad 

 

[andrewmcleod]

Bare-hulled aluminium boats happily float for decades in saltwater with no issue. It?s when you introduce current from some source you get the problems. Bare aluminium is used for most of the serious boats you can buy for heading out into the sticks. It?s the cheese.

Technically it's not bare aluminium, it's covered in a protective layer of aluminium oxide which forms immediately on contact with air as aluminium is actually very reactive. However, as previously stated, aluminium carabiners are not made of pure aluminium but alloys which are much more susceptible to corrosion (the extra elements, particularly copper, disrupting the protective surface layer).

 

[pwhole]

Found a nice article on the DMM site that goes into it (and anodising) in a little more detail:

https://dmmclimbing.com/Knowledge/August-2011/Anodising

 

[andrewmcleod]

Found a nice article on the DMM site that goes into it (and anodising) in a little more detail:

https://dmmclimbing.com/Knowledge/August-2011/Anodising

It is indeed a nice article. I posted it about 10 posts up

(but all good )

 

[mikem]

Found a cave belt buckle that had oxidized today

 

[ogofmole]

There was a very interesting talk at a Hidden Earth at least ten years ago on this very subject of mixing alloy and steel componates.

 

[droid]

If you want corrosion you should have seen some of the pegs me and a mate ended up clipping on Gogarth 

That why you should do gogarth trad 

I'm talking mid 80's on a climb done in the mid 60's and the gear was from that time. Is that 'trad' enough for you?