Hi Corroneer,
In fact the highest temperature observed before the failure was 373°C. This is the fluid temperature, not the CS surface temperature, I guess it could be close to 373°C but still within the design temperature.
If it is high temperature damage, does it mean that the material is...
Hi SJones,
I don't think it is CUI because it is not on the surface in contact with the insulation material. It is the inner side.
It is strange to see carbon steel material turned into layers like this, never seen that before.
Hi cap1a79,
i) Temperature - ~300 C
ii) Service unit / Detail location: hydrocracker unit
iii) Type of the facility: heat exchanger
iv) Any corrosive component: shouldn't be but Cl and S was detected on the CS piece
Hello experts,
I'd like to get your opinion on the type of failure of this carbon steel (SA516 gr70N). See attached pictures. The pieces that came out from the main part seem to have multi layers. I'm not sure if this is a type of corrosion or a material problem. This carbon steel part is in...
