PRESSURE PIPES STEEL

Brand Owner Address Description
VAROUGHNECK voestalpine Tubulars GmbH & Co KG Alpinestraße 17 A-8652 Kindberg-Aumühl Austria Pressure pipes of steel for the transport of oil and natural gas; pipe junctions of metal, namely, steel and carbon steel, in particular for oil pipelines and natural gas pipelines; gastight threaded connecting pieces of metal, in particular steel, in particular for oil pipelines or natural gas pipelines; pipe muffs of metal, in particular steel; threaded pipes of metal, in particular steel;oil pipeline construction, maintenance, and repair; installation of threaded pipes and gastight threaded connecting pieces of metal; repair of threaded pipes and gastight threaded connecting pieces of metal;VA ROUGH NECK;Color is not claimed as a feature of the mark.;
 

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.