Studi Pembuatan Procedure Qualification Record untuk Repair through Thickness pada S355 KT0

Windy Stefani; Nur Fitria Pujo Leksonowati; Nurman Pamungkas; Cahyo Budi Nugroho

doi:10.30871/ji.v16i2.8530

Penulis

Windy Stefani Politeknik Negeri Batam
Nur Fitria Pujo Leksonowati
Nurman Pamungkas
Cahyo Budi Nugroho

DOI:

https://doi.org/10.30871/ji.v16i2.8530

Kata Kunci:

PQR , Repair Through Thickness , S355 KT0 , Non-DestructiveTest, Destructive

Abstrak

Penelitian ini bertujuan untuk membuat PQR Repair Through Thickness terhadap material S355 KT0 dengan metode pengelasan GTAW pada root, SAW pada filler dan capping. Hasil lasan diperbaiki dengan gouging dan grinding sebelum di-repair dengan pengelasan SMAW Penelitian ini menggunakan metode eksperimental dengan pengujian Non-Destructive dan Destructive test sesuai standar AWS D1.1 dan Client Specification MHK-COMP-SPE. Hasil pengujian menunjukkan bahwa hasil lasan bebas dari cacat dan memenuhi standar AWS D1.1 dalam hal sifat mekanis, seperti tensile strength, bending, impact, dan hardness. Nilai uji tensile mencapai 609 MPa (pada spesimen longitudinal) dan 539 MPa serta 540 MPa pada spesimen transverse. Nilai uji impact terendah adalah 139J pada daerah fusion line +2 mm repair to original welds. Nilai uji hardness puncak adalah 240 VHN pada bagian HAZ (repair to original weld). Hasil pengujian juga digunakan untuk menyusun PQR yang sesuai dengan kebutuhan spesifik. Penelitian ini diharapkan memberikan panduan dalam melakukan repair welding pada material S355 KT0.

Unduhan

Data unduhan belum tersedia.

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