API 653 Repiar of Caustic Tank
API 653 Repiar of Caustic Tank
(OP)
We are replacing a manway insert on a 40 year old carbon steel API 650 storage tank. The tank has been used as a White Liquor (Caustic) Storage tank.
I'm concerned the inner shell to insert weld will fail due to caustic embrittlement of the shell material. Any suggestions as how to avoid this?
I'm concerned the inner shell to insert weld will fail due to caustic embrittlement of the shell material. Any suggestions as how to avoid this?





RE: API 653 Repiar of Caustic Tank
Do you know if anything was done on the original tank to avoid this problem?
You should be able to stress-relieve the weld in question, if that would eliminate the problem.
RE: API 653 Repiar of Caustic Tank
RE: API 653 Repiar of Caustic Tank