Not signed in (Sign In)

Matco Associates Inc. Specialists in Materials Engineering, Corrosion and Failure Analysis

Categories

Welcome, Guest

Want to take part in these discussions? Sign in if you have an account, or apply for one below

Vanilla 1.0.3 is a product of Lussumo. More Information: Documentation, Community Support.

The Corrosion Forum: buried tubing of ss316 in corrosive sand

Bottom of Page

1 to 5 of 5

  1.  
    • CommentAuthorktanmech
    • CommentTimeDec 8th 2009
     permalink
    What kind of consideration need to be taken care while selecting the Material as ss316 as buried tubing ?
    • CommentAuthormatco
    • CommentTimeDec 14th 2009
     permalink
    Soil corrosivity, water table and composition is very important for Type 316 underground application. Higher chlorides and low resistivity may result in localized corrosion. In this case cathodic protection should be considered to prevent acclerated corrosion
  3.  permalink
    Dear matco,

    Can you suggest above what value of chlorides (ppm) and soil resistivity, cathodic protection is required?

    Is any type of coating sufficient to prevent galvanic corrosion? or cathodic protection is must for above case?
    • CommentAuthormatco
    • CommentTimeDec 24th 2009
     permalink
    You need to determine if the soil is reducing. Reducing soil with chloride levels above 100 ppm and soil resistivity below 3000 ohm-cm may require cathodic protection/coating.
  5.  permalink
    I think for 316SS you don't need to applied CP. But make sure Cl level in your soil(IMHO, Cl level in soil should be less) and another solve, you can used coating.

1 to 5 of 5

  1.