page_title: Tank car
section_title: Torpedo wagons
hierarchical_section_title: Tank car / Specialized applications / Torpedo wagons
caption_attribution_description: Deutsch: Schienenfahrzeuge (Torpedowagen) der Henrichshütte in Hattingen
context_page_description: A tank car is a type of railroad car or rolling stock designed to transport liquid and gaseous commodities.
context_section_description: A torpedo car or bottle car is a  type of railroad car used in steel mills to haul molten pig iron from the blast furnace to begin the process of primary steelmaking.
  The thermally-insulated vessel is mounted on trunnions, and designed to endure extremely high temperatures, as well as keeping the metal in a molten state over extended periods of time. The vessel can be pivoted along its longitudinal axis to empty the pig iron into a ladle. The name is derived from the vessel's resemblance to a torpedo.
caption: Torpedo car
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