1. bookVolume 5 (2022): Issue 1 (April 2022)
Journal Details
License
Format
Journal
eISSN
2601-8799
First Published
30 Jan 2019
Publication timeframe
2 times per year
Languages
English
access type Open Access

High Heat Input Welding of NSSC 2120 Type Lean Duplex Steel

Published Online: 20 Jul 2022
Volume & Issue: Volume 5 (2022) - Issue 1 (April 2022)
Page range: 35 - 38
Journal Details
License
Format
Journal
eISSN
2601-8799
First Published
30 Jan 2019
Publication timeframe
2 times per year
Languages
English
Abstract

Duplex stainless steels offer a high strength alternative to stainless steel, while providing excellent corrosion resistance, due to their dual-phase microstructure. This microstructure can be significantly influenced during welding, thus the maximum recommended heat input is usually 2.5 kJ/mm. In this research, we inspected the high heat input (3 kJ/mm) weldability of NSSC 2120 lean duplex stainless steel, which is designed and developed specifically for this purpose. The welds were evaluated by metallographic techniques and corrosion tests. It was found the NSSC 2120 grade can be welded with high heat input without deterioration in the phase balance and microstructure.

Keywords

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