The Acereros de Monclova (English: Monclova Steelers) are a Mexican Baseball League team that plays in the Zona Norte (Northern Division) of the Mexican League. The Estadio De Béisbol Monclova is their home baseball park, which has a capacity of 12,000 fans. The Acereros replaced the Mineros de Coahuila in the 1976 season. Mario Mendoza agreed to manage it in the 1987 season.

The Steelers of the North is its official name, debuted in the Mexican League on March 23, 1974 under the name "Miners of Coahuila" against the now defunct "Indios of Ciudad Juarez," took place in "Sports Park Ahmsa" Miners team manager was the "Sergeant Shrapnel" Tomas Herrera.

In 1971 it had reached an Liga Mexican Beisbol team to the region. The Pirates of Sabinas which lasted three years playing in the stadium. And thanks to the efforts of Mr. Harold R. Pape, managed to establish the franchise also in Monclova. Los Mineros de Coahuila name that start Monclova Square headquarters and shared with the town of Sabinas, Coahuila.

In September 1973 Harold Pape commanded to build the Estadio Monclova, thanks to the State Government at that time the Governor was Mr. Eulalio Gutiérrez Treviño.

On March 16, 1975 Monclova Stadium opened with a game between Mineros de Coahuila and the missing cache of Tampico

In 1976 the team made the playoffs for the first time, but were eliminated by Cd Juarez Indians in five games.

In 1980 the name was changed to Mexican League Baseball Monclova Steelers, led by Victor Favela.

In 1985 Monclova advanced to the postseason as the third place in the Northern Zone and fell 4-0 to the owls.

In 1986 the Steelers set a record for runs scored with 203, matching also their record most homers in a game. They finished the regular season as the leader of the North Division with a 76–51 mark, with five-game lead over Monterrey. However, after winning in six games in the first round of the playoffs over the owls, they fell in the North Division Championship Series to the Monterrey Sultans in seven dramatic games.

In 1987 came the revenge on the Monterrey Sultans and eliminated in five games, but then came the Tecolotes and eliminated in five games. Monclova Steelers logo.

In 1990 again the Tecolotes again became insurmountable obstacle and ended all in the first round.

In 1992, Northern Steel Group acquired the franchise of the Steelers, and the new team was launched as the Acereros del Norte.

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