CATHODIC PROTECTION OF INTERNAL SURFACES OF PIPES CONTAINING SEA WATER

Potential and pH data indicate that internal surfaces of 20-foot lengths of 1/2-in., 1-in., and 2-in. nominal diameter pipes of type 304 stainless steel and copper containing stagnant sea water were effectively cathodically protected by a single zinc anode attached internally to one end of each pipe. Cathodic protection time varied from 4 days for the 2-in. diameter stainless steel to about 186 days for the 1/2-in. diameter copper pipe. Protection of low carbon steel pipe was progressively lost, due to the formation of hydrogen sulfide.

• Supplemental Notes:
  • Presented at the National Association of Corrosion Engineers Conference, Proceedings, held at the International Corrosion Forum, Anheim, California, March 19-23, 1973.
• Corporate Authors:

  National Association of Corrosion Engineers

  2400 West Loop South
  Houston, TX  United States  77027
• Authors:
  • Groover, R E
  • Peterson, M H
• Publication Date: 1973-5

Media Info

• Features: References;
• Pagination: 11 p.

Subject/Index Terms

• TRT Terms: Cathodic protection; Corrosion; Corrosion protection; Electric potential; Electrodes; Pipelines
• Old TRIS Terms: Electrode potentials; Piping corrosion
• Subject Areas: Marine Transportation; Pipelines; Terminals and Facilities;

Filing Info

• Accession Number: 00050500
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: Preprint Paper #72 Proceeding
• Files: TRIS
• Created Date: Jan 24 1974 12:00AM