steel worker

Noun

 * 1) A construction worker specializing in fabricating and erecting steel components
 * The steel workers and electricians went on strike, halting construction.
 * 1)  A person involved in the fabrication of steel itself
 * The steel worker joined the United Steelworkers soon after starting work at the mill.

Usage notes
The manufacturer of steel is now generally known as a steelworker, without the space.