STAINLESS STEEL CARGO TANK FINISHING AND CLEANING

The use of stainless steel for marine transportation of liquid chemicals, wines and other bulk liquids has grown rapidly in recent years. Stainless steel is now probably the most widely used material for tank "lining" when compared with the various non-metallic coatings used for this purpose. Stainless steels depend for their corrosion resistance on the formation of a passive surface film which is composed mainly of chromium oxide. Although this film forms spontaneously when the metal is exposed to air or to water, it is possible to damage or contaminate the surface during fabrication or by service operation so that the ability to form a satisfactory film is impaired. It is necessary to avoid or correct such damage if the optimum corrosion resistance of the stainless steel is to be obtained. It should be noted that the surface will usually repassivate if the film is damaged--if this were not so, the corrosion resistance of stainles steel would be no better than that of a coated steel. The purpose of this paper is to provide general guidance on procedures which will help to achieve optimum corrosion resistance of stainless steels and also give some advice on tank cleaning.

Media Info

  • Pagination: p. 185-188

Subject/Index Terms

Filing Info

  • Accession Number: 00314752
  • Record Type: Publication
  • Report/Paper Numbers: Conf Paper
  • Files: TRIS
  • Created Date: Aug 27 1980 12:00AM