%X This work proposes an improved quantitative prediction model for corrosion under insulation (CUI) for oil and gas piping in equatorial climate zone, using real-world data and integrated with experimental work using modified two stages of Artificial Neural Network. Investigation into the effect of single type of data source and different type of fitting line analysis on the final CUI model are also discussed with the goal for Risk Based Inspection (RBI) to be more effective. Results from the CUI prediction model exhibits high R2 of 0.9919 and Root Mean Squared Error (RMSE) of 0.0087. © 2018 Author(s). %L scholars9714 %J AIP Conference Proceedings %O cited By 4; Conference of 6th International Conference on Production, Energy and Reliability, ICPER 2018 ; Conference Date: 13 August 2018 Through 14 August 2018; Conference Code:141991 %R 10.1063/1.5075560 %D 2018 %I American Institute of Physics Inc. %A N.R.A. Burhani %A M. Muhammad %A M.C. Ismail %V 2035 %T Corrosion under insulation rate prediction model for piping by two stages of artificial neural network