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Comparative Analysis of Tensile Strength of Steel Tubing Pipe Welding Results Using SMAW and MIG Welding with 140A Current Yuni Tri Aulia; Muhammad Ariyon; Fitriani Fitriani; Alexander Sebayang; Efrata Tarigan
International Journal of Engineering, Science and Information Technology Vol 5, No 1 (2025)
Publisher : Malikussaleh University, Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v5i1.645

Abstract

Welding is a crucial technology in modern manufacturing processes, widely applied in automotive, oil refineries, and other industries. This study focuses on two standard welding techniques: Gas Metal Arc Welding (GMAW) and Shielded Metal Arc Welding (SMAW). GMAW uses argon gas as a shielding gas, and the ER70S-6 electrode has a 1.0 mm diameter, while SMAW employs the E7018 electrode with a 2.6 mm diameter. Both methods are tested on ASTM 106 Grade B steel, a commonly used material in various industries. The primary goal of this research is to evaluate the tensile strength of steel specimens welded using MIG and SMAW. The tensile strength of raw material, as well as the welded materials, is measured to assess the quality of the welds. The results show that the tensile strength of the raw material is 648.26 kgf/mm². After welding, the tensile strength for the MIG-welded material is 540.79 kgf/mm², while the SMAW-welded material achieves a higher tensile strength of 616.17 kgf/mm². These values highlight the significant difference in performance between the two welding techniques. SMAW welding provides the best joint quality among the two methods, with a tensile strength value of 616.17 kgf/mm². This study underscores the importance of selecting the appropriate welding technique based on the desired strength and application, with SMAW proving superior for this particular material. These findings contribute valuable insights into material technology and welding, offering a reference for future industrial applications.
Study of the Effect of Post Weld Heat Treatment on the Bending Strength of Weld Joints in SMAW and GMAW Methods in Root Bend Areas and Face Bend on ASTM A106 Grade B M. Piere Sam Paskel; Muhammad Ariyon; Fitrianti Fitrianti; Ira Herawati; Alexander Sebayang; Efrata Tarigan; Idhamkamil Idhamkamil; Liwat Tarigan
International Journal of Engineering, Science and Information Technology Vol 5, No 2 (2025)
Publisher : Malikussaleh University, Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v5i2.850

Abstract

This study evaluates the effect of Post Weld Heat Treatment (PWHT) on the bending strength of raw materials and welding joints using SMAW and GMAW welding methods. Tests were conducted on root and face bends to compare bending strength before and after PWHT treatment. The test results show that in the root bend area, the base material without PWHT has a bending strength of 3983.16 MPa, while in SMAW and GMAW welding, the bending strength is 3788.39 MPa and 2695.96 MPa, respectively. After PWHT was applied, the bending strength of the base material increased to 4739.76 MPa, while that of SMAW and GMAW welding increased to 4131.62 MPa and 5193.39 MPa, respectively. In the face bend area, the base material without PWHT showed a bending strength of 3077.70 MPa, with SMAW and GMAW welding producing bending strengths of 2654.28 MPa and 2259.32 MPa, respectively. After PWHT, the bending strength of the base material increased to 3289.05 MPa, while SMAW and GMAW welding recorded 2641.47 MPa and 3498.07 MPa, respectively. This study's results indicate that PWHT significantly improves bending strength, especially in the base material and weld joints in the root bend area.