ncrc - straightening a 2x4 steel purlin?

[Barry Donovan]

I just welded a boat trailer, thought of this thread. Weld moves the beams. Try welding ahot spot, bang it around. find a crotch in a tree perhaps.

[dulcich]

You're out of luck on this one. I'm thinking this is from the fire that barbecued the Lightning? Probably thin gauge formed section beams. Toss it all in the scrap metal pile and move on.
-dulcich