Mannesmann Grossrohr GmbH is a German manufacturer of large-diameter steel pipes and a company within the Mannesmann division of the Salzgitter Group. The company specializes in longitudinally welded line pipe produced from heavy plate for energy and industrial pipeline applications.
Its products are used for the onshore and offshore transport of natural gas, hydrogen, CO2, and water, supporting high-pressure transmission networks and major infrastructure projects. Mannesmann Grossrohr also provides related finishing services such as pipe coating and logistics, supplying customers in Europe and international markets.
