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All Journal Indonesian Journal of Maritime Technology or abbreviated (ISMATECH)
Fikan Mubarok Rohimsyah
Department of Material and Metallurgical Engineering, Institut Teknologi Kalimantan
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation

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Strength Evaluation of Combined New and Old Plates Welded Joint: Case of Anggada XV Tug Boat Samsu Dlukha Nurcholik; Wahyuda Wahyuda; Taufik Hidayat; Andi Mursid Nugraha Arifuddin; Diniar Mungil Kurniawati; Devy Setiorini Saadiyah; Jatmoko Awali; Fikan Mubarok Rohimsyah; Andi Trimulyono; Andhi Indira Kusuma
Indonesian Journal of Maritime Technology Vol. 2 No. 1 (2024): Volume 2 Issue 1, June 2024
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v2i1.1069

Abstract

Naval grade plate is designed for shipbuilding due to its strength. In the shipyard, old plates have been used because surplusage of the previous project. However, the mechanical properties of old plate compared to new plate have not been clarified yet. In this study, a comparative investigation shielded metal arc welding (SMAW) of old plate and new plate was performed. A spectroscopy test was used to obtain the chemical properties of the old plate and the new plate. Furthermore, tensile and hardness tests were performed to investigate the mechanical properties It was concluded that (1) the chemical properties of the old and new plates are almost similar and (2) the average value of tensile strength of the old-old plate, new-new plate, and new-old plate are 451.3, 487, 454,3 N/mm2, respectively. (3) then, the average hardness test of HAZ of old plate, new plate, and weld metal are 73.2, 78.3, 83.2 HRB, respectively. From the results, it can be concluded that using old plates for shipbuilding is still reliable.
Co-Authors Andhi Indira Kusuma Andi Mursid Nugraha Arifuddin Andi Trimulyono Devy Setiorini Saadiyah Jatmoko Awali Kurniawati, Diniar Mungil Samsu Dlukha N Taufik Hidayat Wahyuda Wahyuda