Analysis of Remaining Life Assessment of Coating on Continuous Nozzle Using ASTM D7091 Standard and API 581 Calculation Method
Analisis Remaining Life Assessment Coating pada Continuous Nozzle Menggunakan Standar ASTM D7091 dan Metode Perhitungan API 581
DOI:
https://doi.org/10.21070/ups.10444Keywords:
Remaining Life Assessment, coating, continuous nozzle, ASTM D7091, API 581, Dry Film Thickness (DFT)Abstract
This study analyzes the Remaining Life Assessment (RLA) of coating on a continuous nozzle by comparing coating application methods (powder coating and spray coating) and substrate types (aluminum and galvanized). The dry film thickness (DFT) was measured non-destructively using a DFT gauge in accordance with ASTM D7091 to obtain the initial thickness and the current thickness. The thinning rate was calculated using CR=(t1−t2)/Δt, while the remaining coating life was determined based on the API 581 approach using RL=(tcurrent−tminimum)/CR with a minimum thickness of 10 μm. The results show that the Powder Coating–Galvanized combination has the lowest thinning rate of 1.50 μm/month and the longest remaining life of 92.7 months. In contrast, Spray–Aluminum exhibits the highest thinning rate of 3.00 μm/month and the shortest remaining life of 40.3 months. These findings confirm that powder coating and galvanized substrates are more effective for long-term protection.
Downloads
References
A. Baxevani, E. Lamprou, A. Mavropoulos, F. Stergioudi, N. Michailidis, and I. Tsoulfaidis, “Investigation of Corrosion Resistance in Powder-Coated 6060 Aluminum Alloy: Effects of Powder Coating and Pre-Anodizing Followed by Powder Coating,” Metals (Basel), vol. 15, no. 10, Oct. 2025, doi: 10.3390/met15101062.
M. K. Bhadu, A. K. Guin, V. Singh, and S. K. Choudhary, “Corrosion Study of Powder-Coated Galvanised Steel,” ISRN Corrosion, vol. 2013, pp. 1–9, Mar. 2013, doi: 10.1155/2013/464710.
R. Galiotto, S. Zanetti, R. Traini, and L. Pezzato, “Physical–Mechanical and Corrosion Resistance Characterization of a Water-Based Epoxy Primer Applied to Galvanized Steel,” Metals (Basel), vol. 15, no. 11, Nov. 2025, doi: 10.3390/met15111196.
E. K. Karaxi, I. A. Kartsonakis, and C. A. Charitidis, “Assessment of Self-Healing Epoxy-Based Coatings Containing Microcapsules Applied on Hot Dipped Galvanized Steel,” Front Mater, vol. 6, Sep. 2019, doi: 10.3389/fmats.2019.00222.
A. Teurupun, B. S. Nugroho, A. Nurrahmana, and K. Alfarizi, “Risk-Based Inspection Analysis of Api 581 Pressure Safety Valve and Stripper Acid Gas Removal Unit at PT. XY,” Scientific Contributions Oil and Gas, vol. 47, no. 3, pp. 313–325, Oct. 2024, doi: 10.29017/SCOG.47.3.1645.
I. Kunce, A. Królikowska, and L. Komorowski, “Accelerated corrosion tests in quality labels for powder coatings on galvanized steel—comparison of requirements and experimental evaluation,” Materials, vol. 14, no. 21, Nov. 2021, doi: 10.3390/ma14216547.
J. Zhang et al., “Non-Destructive Evaluation of Coating Thickness Using Water Immersion Ultrasonic Testing,” Coatings, vol. 11, no. 11, Nov. 2021, doi: 10.3390/COATINGS11111421.
M. S. Jarić, S. Z. Petronić, N. J. Budimir, K. G. Čolić, and L. D. Jeremić, “Analysis Of The Estimated Remaining Service Life Of Gas Rectification Columns,” Thermal Science, vol. 25, no. 5 Part B, pp. 3813–3823, 2021, doi: 10.2298/TSCI201214083J.
X. Meng, M. Lu, W. Yin, A. Bennecer, and K. J. Kirk, “Evaluation of coating thickness using lift-off insensitivity of eddy current sensor,” Sensors (Switzerland), vol. 21, no. 2, pp. 1–18, Jan. 2021, doi: 10.3390/s21020419.
M. Arifullah and I. Widyastuti, “LAJU KOROSI BAJA KARBON HASIL POWDER COATING DAN PENGECATAN CAIR,” 2015.
J. T. Perkapalan, H. P. Sumintono, P. Manik, U. Budiarto, J. Soedarto, and U. Tembalang, “Analisis Pengaruh Ketebalan Coating Terhadap Laju Korosi Pada Baja ST42 Sebagai Material Daun Kemudi Pada Perairan Dengan Tingkat Salinitas Yang Bervariasi,” Jurnal Teknik Perkapalan, vol. 12, no. 4, p. 1, 2024, [Online]. Available: https://ejournal3.undip.ac.id/index.php/naval
G. D. Haryadi, H. K. Kustomo, and S. J. Kim, “Penilaian Risiko Dan Perencanaan Inspeksi Pipa Transmisi Gas Alam Cepu-Semarang Menggunakan Metode Risk Based Inspection Semi-Kuantitatif Api 581,” MESIN, vol. 25, no. 1, pp. 18–28, 2016.
A. Abdou, T. Bouchala, B. Abdelhadi, A. Guettafi, and A. Benoudjit, “Nondestructive eddy current measurement of coating thickness of aeronautical construction materials,” Instrumentation Mesure Metrologie, vol. 18, no. 5, pp. 451–457, Oct. 2019, doi: 10.18280/i2m.180504.
Downloads
Additional Files
Posted
License
Copyright (c) 2026 UMSIDA Preprints Server
This work is licensed under a Creative Commons Attribution 4.0 International License.
