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description Journal article public Material, Komponen dan Konstruksi

Analisis Pembuatan Pipa Baja Sistem Dua Bagian Las Astm A139 Dengan Menggunakan Metoda Lsaw = Manufactur Analysis Dual Seam Weld Steel Pipe Astm A139 by Using Lsaw Methode

Djoko W. Karmiadji, Gery Setiadi
Published 2014

Abstract

One of the main components of the manufacture of steel pipe is in the form of plate steel sheet, slab or hot roll coil, which of these materials may be made for various types of pipes, among others, seamless, Electric Wire Resistance, Spiral and Longitudinal pipes.The main material used welding steel pipe is a steel plate or hot roll coil. Material procurement dependence becomes an obstacle for welding steel pipe mill, which at this moment in our country's steel mills have not been able to produce material of diameter of 24 "steel pipe used primarily in the oil and gas sector.In this research, the analysis of welded steel pipe manufacture using local plate material consisting of two sections then welded with GMAW and SMAW welding type, where the manufacture of welded steel pipe with dimensions Ø 28 "x 8.7 mm x 12.000 mm is done using the LSAW (Longitudinal Sub Merged Arc Welding) method. Mechanical testing and inspection conducted in accordance with ASTM A139.Based on the analysis of the results of testing and inspection, it can be concluded that the method of manufacture of welded steel pipes using dual seam weld longitudinal submerged arc welding compliant as required in the standard ASTM A139.

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