Analysis of Temperature Variations, Types of Insulation and Coating on Corrosion Under Insulation on ASTM A53 Pipes

Reza Putra, Muhammad Muhammad, T Hafli, Nurul Islami, Arpan Apandi S


Corrosion Under Insulation (CUI) can be described as localized corrosion that forms as a result of the penetration of water or moisture through an insulating material. The pipe material used is of the ASTM A53 standard and the fluid used in seawater because almost all industries are located on the coast. This type of coating is carried out on the test pipe using Meiji Epoxy Filler. The test method is carried out by flowing seawater fluid in pipes with water temperature variations of 30°C, 50°C, and 70°C. This pipe varies the type of insulation by using glasswool and Rockwool (ASTM G 189-07). This insulation is conditioned in a wet state by giving 2 ml of seawater drops with a pH value of 4 per 6 hours. The test equipment is divided into 3 series according to temperature variations with 4 test specimens and 2 coating variations respectively. The test time was carried out for 336 hours to obtain the corrosion rate results using the ASTM G31-72 weight loss method. The results showed that the type of Glasswool insulation with specimens coated had the lowest corrosion rate value of 0.00483 mmpy at a temperature of 30°C when compared to the same type of treatment on Rockwool insulation of 0.00724 mmpy or an increase of 2.41 times. This study shows that the type of insulation, temperature variation, and coating greatly affect the rate of corrosion and the type of corrosion that occurs is uniform corrosion.


Corrosion Under Insulation, Corrosion Rate, Glasswool, Rockwool, Coating

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S. Nova and N. Misbah, “Analisis Pengaruh Salinitas dan Suhu Air Laut Terhadap Laju Korosi Baja A36 pada Pengelasan SMAW,” J. Tek. Its, vol. 1, no. 1, 2012.

S. Ali Rafsanjani, F. E. Rooslan Santosa, and R. Durrotun Nasihien, “Analysis of Planning for Clean Water Needs at Grand Sagara West Surabaya Hotel With the Green Buillding Concept,” Int. J. Eng. Sci. Inf. Technol., vol. 1, no. 2, 2021, doi: 10.52088/ijesty.v1i2.55.

M. G. Fontana, “Corrosion engineering. Third edition.,” 1986.

A. Fried, “Concrete,” in Materials Science in Construction: An Introduction, 2014.

D. H. Ling Lim and D. E. Gunister, “Awareness of corrosion importance among engineering undergraduates in the United Arab Emirates,” Educ. Res., vol. 09, no. 02, 2018, doi: 10.14303/er.2018.018.

“Correction to: Modelling durability of reinforced concrete structures (Corrosion Engineering, Science and Technology, (2020), 55, 2, (71–181), 10.1080/1478422X.2019.1710660),” Corrosion Engineering Science and Technology, vol. 55, no. 4. 2020, doi: 10.1080/1478422X.2020.1766776.

R. Javaherdashti, “Corresponding author. Tel./fax: xxxxxxxxxxxxxx Corrosion under Insulation (CUI): A review of essential knowledge and practice,” J. Mater. Sci. Surf. Eng., vol. 1, no. 2, 2014.

R. Javaherdashti, “Corrosion under Insulation (CUI): A review of essential knowledge and practice,” J. Mater. Sci. Surf. Eng., vol. 1, no. 2, 2014.

E. Eltai, K. Al-Khalifa, A. Al-Ryashi, E. Mahdi, and A. S. Hamouda, “Investigating the corrosion under insulation (CUI) on steel pipe exposed to Arabian Gulf sea water drops,” in Key Engineering Materials, 2016, vol. 689, doi: 10.4028/

T. Dickson and S. Pavía, “Energy performance, environmental impact and cost of a range of insulation materials,” Renew. Sustain. Energy Rev., vol. 140, 2021, doi: 10.1016/j.rser.2021.110752.

M. Gonçalves, N. Simões, C. Serra, and I. Flores-Colen, “A review of the challenges posed by the use of vacuum panels in external insulation finishing systems,” Applied Energy, vol. 257. 2020, doi: 10.1016/j.apenergy.2019.114028.

D. Kumar, P. X. W. Zou, R. A. Memon, M. M. Alam, J. G. Sanjayan, and S. Kumar, “Life-cycle cost analysis of building wall and insulation materials,” J. Build. Phys., vol. 43, no. 5, 2020, doi: 10.1177/1744259119857749.

A. Nerlich and D. Dannehl, “Soilless Cultivation: Dynamically Changing Chemical Properties and Physical Conditions of Organic Substrates Influence the Plant Phenotype of Lettuce,” Front. Plant Sci., vol. 11, 2021, doi: 10.3389/fpls.2020.601455.

A. Komosa, B. Markiewicz, T. Kleiber, E. Mieloszyk, and M. Mieloch, “Yield and nutrient status of greenhouse tomato (Lycopersicon esculentum mill.) grown in new and re-used rockwool, polyurethane, nft and aeroponics,” J. Elem., vol. 25, no. 2, 2020, doi: 10.5601/jelem.2019.24.3.1894.

M. Olivia and H. Nikraz, “Properties of fly ash geopolymer concrete designed by Taguchi method,” Mater. Des., 2012, doi: 10.1016/j.matdes.2011.10.036.

J. Xiao, C. Qiang, A. Nanni, and K. Zhang, “Use of sea-sand and seawater in concrete construction: Current status and future opportunities,” Construction and Building Materials. 2017, doi: 10.1016/j.conbuildmat.2017.08.130.

M. N. Al Dahlan, M. A. Obied, K. M. Marshad, F. M. Sahman, I. S. Yami, and A. M. Alhajri, “Evaluation of synthetic acid for wells stimulation in carbonate formations,” in Society of Petroleum Engineers - SPE Middle East Unconventional Resources Conference and Exhibition 2015 - The Journey of Unconventional Resources: From Exploration to Successful Development, 2015, doi: 10.2118/172945-ms.

B. N. Popov, Corrosion Engineering: Principles and Solved Problems. 2015.

A. Marquez, J. Singh, and C. Maharaj, “Corrosion Under Insulation Examination to Prevent Failures in Equipment at a Petrochemical Plant,” J. Fail. Anal. Prev., vol. 21, no. 3, 2021, doi: 10.1007/s11668-021-01135-5.

E. O. Eltai, F. Musharavati, and E. S. Mahdi, “Severity of corrosion under insulation (CUI) to structures and strategies to detect it,” Corrosion Reviews. 2019, doi: 10.1515/corrrev-2018-0102.

Y. H. Tsai, J. Wang, W. T. Chien, C. Y. Wei, X. Wang, and S. H. Hsieh, “A BIM-based approach for predicting corrosion under insulation,” Autom. Constr., vol. 107, 2019, doi: 10.1016/j.autcon.2019.102923.



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