Amalgamated Association of Iron and Steel Workers

This article is about the defunct union. For other uses defining the worker, see Steel worker (disambiguation). For the team, see Pittsburgh Steelers.
AA
Amalgamated Association of Iron and Steel Workers
PredecessorSons of Vulcan;
Ass. Brotherhood of Iron & Steel Heaters, Rollers, & Roughers;
Iron and Steel Roll Hands of US
Merged intoUnited Steelworkers (1942)
FoundedAugust 4, 1876
Location
  • U.S.
Members
150,000 (February 1934)
AffiliationsCongress of Industrial Organizations, Steel Workers Organizing Committee

Amalgamated Association of Iron and Steel Workers (AA) was an American labor union formed in 1876 to represent iron and steel workers. It partnered with the Steel Workers Organizing Committee of the CIO, in November 1935. Both organizations disbanded May 22, 1942, to form a new organization, the United Steelworkers.