Presented here are my colour illustrations of the insignia of rank (and specialty insignia) for the officers, warrant officers and enlisted personnel in the Steelworkers specialty, of the USAF Civil Engineers Major Construction Directorate.
The specialty insignia is the same as that for U.S. Navy steelworkers.
The USAF Civil Engineers Major Construction Directorate is the USAF's direct equivalent of the U.S. Navy's "Sea-bees" (Construction Battalions).
USAF Steelworkers have the same range of duties as their U.S. Navy
Officers in this specialty are all Civil Engineers, involved directly in the overall management of steelworking projects.
Warrant Officers and Enlisted personnel are actual steelworkers, (though the higher of these ranks are more involved in the actual construction management of projects.)