Nucor on Wednesday said United Technologies’ chief financial officer had joined its board, effective immediately.

Gregory Hayes, 53, will serve until the company’s annual meeting this spring, and then stand for re-election for another term. United Technologies, a defense and aerospace company based in Hartford, Conn., acquired Charlotte-based Goodrich in 2012.

The addition of Hayes gives Nucor nine directors on its board. Executive chairman Dan DiMicco retired from the board at the end of December.