Good thought, but they do need to be removed. They are used for support on
bare root
nursery stock, and get pushed in/pulled out at least once a year. Corrosion
resistance is
"not much". After you use them once the ground end is pretty much rusted.

wrote in message
oups.com...
If they only get driven in, but not taken out you could place a sleeve
over the joint and crimp/compress/stake.

What does the corrosion resistance need to be?

-Dave