FINED STEEL TUBES PIPES

Brand Owner (click to sort) Address Description
DOCKWEILER Dockweiler AG An der Autobahn 10/20 19306 Neustadt-Glewe Germany fined steel tubes and pipes and fittings therefor;
DOCKWEILER Dockweiler GmbH Meessen 10 22113 Oststeinbek Germany fined steel tubes and pipes and fittings therefor;
ULTRON Dockweiler AG An der Autobahn 10/20 19306 Neustadt-Glewe Germany fined steel tubes and pipes and fittings therefor;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. This invention relates to a welded line pipe structure for transporting corrosive petroleum or natural gas. It is constituted by martensitic stainless steel pipes containing 8-16% Cr and at most 0.05% C. By suitably controlling the welding conditions at the time of girth welding of the steel pipes so as to ensure that the Cr concentration in grain boundary Cr-depleted portions existing immediately beneath a weld oxide scale is at least 5%, the occurrence of SCC in a high temperature CO2 environment can be prevented.