SS 316 pipes are rusting.
SS 316 pipes are rusting.
(OP)
WE ARE FACING RUSTING PROBLEM TO THE SS 316L pipings,at diffrent places.I mean to say If there is one pipe length on this pipe some places ,rusting is appreaing.Plese giev the suitable ansawer.





RE: SS 316 pipes are rusting.
Stainless steel and Cl- ions are a bad combination.
Put your question again on the corrosion engineering group.
MVD
RE: SS 316 pipes are rusting.
RE: SS 316 pipes are rusting.
rich39
RE: SS 316 pipes are rusting.
Galvanic corrosion between different due to electrical conductivity between different metals and contamination from mild steel can also be a problem.
Tae the advice above and post on the corrosion site but give them more information to work with.
Is it external or internal corrosion.
What is the liquid.
Is galvanic corrosion between different metals a possibility.
brian
RE: SS 316 pipes are rusting.
As mentioned above please give a little more information as to the location of the "rust", old or new pipe, service,local enviroment. Is the "rust" easily removed with a H3PO4 based commercial cleaner? Check it with a 100% concentation.
One of the more common causes of loacalized "rust" on Austenetic S/S is iron contamination from brushes, sparks from grinding c/s in the area,storage racks,etc. Very fine S/S grinding dust can "rust" under certain conditions. If the rust is on or near the welds check for proper welding procedures. In some enviroments 316 s/s will only stay shinny longer than say 304 s/s.
Watch using any Cl based cleaners and treatments on Austenetic S/S. Is there any halogen based processes in the area?