Anybody help to find out the calculation for patch plate for the following case:
We want to servive safely up to 2012 end with additional patch plate.
Column Material – SA 516 Gr-70
Design pressure – 9.5 Barg
Design Temp- 206 Degree C.
Nominal thickness- 18.02 mm
Present actual thickness – 14.45 mm
Design minimum thickness required- 13.83 mm
In year time Corrosion rate-3.57mm/year
CA-3 mm