Yeah, the move of Steel from Earth 2 to Earth 1 was part of CRISIS, and happened in ALL-STAR SQUADRON 50. At some point after that, they killed him off.
Then they re-introduced a new Steel character to replace him, and teamed him up in roughly JLA 230-260 with Vibe, Gypsy, and Vixen. A lackluster team which arguably killed the book.
I don't recall Steel having any part in YOUNG ALL-STARS, but did appear in a few issues of INFINITY INC.
