This repainting schedule was recommended by Gustave Eiffel himself and is still respected to date. To protect it from corrosion, the iron is covered with a thick coat of paint that has to be renewed every 7 years. Following this process, you obtain almost pure iron, which was, according to Gustave Eiffel at that time, the best and most robust of materials. The iron used to build the Eiffel Tower went through a refining process called puddling which eliminated the excess carbon when the ore was melted.

Structure of the Eiffel Tower, © SETE_AlexandreNestora What is puddle iron? The prefab system is what allowed them to build the Eiffel Tower in a record time of 2 years, 2 months and 5 days. The iron plates and beams produced through the puddling process were then preassembled in the Eiffel factories in Levallois Perret using rivets.įinally, these pieces were taken to the Eiffel Tower construction site to be mounted. The puddle iron that makes up the Eiffel Tower's structure came from the Pompey forges (East of France). The Eiffel Tower is made of iron, not steel. What kind of metal is the Eiffel Tower made of? Gustave Eiffel's company, that was located in Levallois Perret, very near Paris, France, also built the metal framework for another world-famous monument: the Statue of Liberty (New York, United States), designed by Auguste Bartholdi and offered to the United States as a gift from France to celebrate the 100th anniversary of the American Declaration of Independence in 1886. Gustave Eiffel is at the origin of many metallic works in Europe including the Porto Viaduct (Portugal), the Viaduct du Garabit (France) and the Budapest train station (Hungary).

The Eiffel Tower was built from 1887 to 1889 by French engineer Gustave Eiffel, whose company specialized in building metal frameworks and structures.

Eiffel tower painting