Intergranular corrosion testing for non-pressurized parts
Intergranular corrosion testing for non-pressurized parts
(OP)
Our client has a 3 phase test separator which has pH2S of 8 mbar and 12000ppm Chlorides. The removable internals proposed is stainless steel however the inlet and outlet lines to separator are DSS.
I understand that the removable internals can be changed if failed and removable internals are non pressurized part.
1) Do we need IGC testing in this case ?
2) Is there any document which limits the use of material for replaceable non-pressurized parts based on H2S and chlorides content? Is it purely based on decision making and can vary ?
I understand that the removable internals can be changed if failed and removable internals are non pressurized part.
1) Do we need IGC testing in this case ?
2) Is there any document which limits the use of material for replaceable non-pressurized parts based on H2S and chlorides content? Is it purely based on decision making and can vary ?





RE: Intergranular corrosion testing for non-pressurized parts
?
RE: Intergranular corrosion testing for non-pressurized parts
If there is no hazard resulting from failure, then it is a question of cost and inconvenience of replacement.
Your conditions are not unknown, what is the industry norm for MOC?
.
"If you don't have time to do the job right the first time, when are you going to find time to repair it?"
RE: Intergranular corrosion testing for non-pressurized parts
If not, then the non-pressurized parts may also need same qualification standards.
RE: Intergranular corrosion testing for non-pressurized parts
If it causes a forced outage then they should be tested to the same criteria, unless you want to accept liability for the outage.
= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube
RE: Intergranular corrosion testing for non-pressurized parts
RE: Intergranular corrosion testing for non-pressurized parts
RE: Intergranular corrosion testing for non-pressurized parts
RE: Intergranular corrosion testing for non-pressurized parts
Steve Jones
Corrosion Management Consultant
http://www.linkedin.com/pub/8/83b/b04
All answers are personal opinions only and are in no way connected with any employer.
RE: Intergranular corrosion testing for non-pressurized parts