Welded 3/8" cold rolled tabs to 1"X1 1/2" hardened stock. Took me two attempts to figure out the preheat and welding combinations. I won't insult anyone with the first attempt...http://i253.photobucket.com/albums/h...3/DSCF0080.jpghttp://i253.photobucket.com/albums/h...3/DSCF0079.jpg