Depending on HOW OLD it really is, the frame could be good old mild
steel or some of the newer HSLA grades and may or may not be heat
treated. One thing to keep in mind is that trailers have been flexed for
a lot of miles. That adds up to a lot of work hardening, fatigue spots,
etc.

I'd probably treat it as a notch better than generic rebar, nothing more.

Alpinekid wrote:
I have access to an old detroiter trailer. Its about
60ft long and made about day 6 of genesis.

Its trashed but I was wondering if the steel frame
has much value of a raw material for future projects.

It looks like a very light i-beam.

Does anyone have any experience in using this material?
Is i like rebar, just an unknown mix?
Is it weldable

etc etc

Al