After several catastrophic deaerator failures in the 1970s and 80s a NACE task group was formed to conduct an organized in-depth study into the causes of the ruptures. The major accomplishment of this group was developing NACE standard RP0590 (now SP0590) “Recommended Practice for Prevention Detection and Corrosion of Deaerator Cracking” which was first released in 1990. Almost thirty years later there are still serious damages occurring in deaerators and they still rupture from time to time. This paper discusses the damage mechanisms that are still occurring and what concerns are still relevant today. One issue is that flow-accelerated corrosion is a much more prominent mechanism now than it was during the initial studies. Another is why deaerators operated for 60 years before they began to fail. Case studies are presented from the power and pulp and paper industries.

Esab is always committed to technological innovations to support its customers in improving productivity and quality in their production units. This high focus has recently brought to the market an innovative cladding solution.
It is about the Integrated Cold Electrode for SAW process, launched in 2012 for joining application only. However, taking the benefits of its high flexibility and of the continuous development around it, it is now also possible to use it for cladding applications. It delivers the required weld deposit chemistry in a single layer solution by combining different wire grades with very low dilution.
Esab also has a long experience in LNG application, where a dedicated flux is well known all over the world. It has been designed some years ago to reduce crack susceptibility when NiCrMo wires are used to weld 9%Ni plates.

The continuous improvements in the Oil&Gas Industry to deal with reliability and maintainability objectives, higher operational reliability, improved safety, and emergency readiness for potential risk of unexpected events have led the Offshore Companies to be in the forefront of development of design and analysis methodology for integrity assessment and safety operation. The architecture of an integrated model targeting the major residual risks to the asset, new generations of internal and external inspection techniques, real-time monitoring sensors, material degradation prediction related to the actual and future operational conditions and machine learning methods are, as identified from the experiences of the authors, the new frontiers for the Pipeline Integrity Management. The advance in automation process to build pipeline digital twin, looking at new predictive and diagnosis tool by advanced FE models allows not only thinking defensively but also in taking an aggressive position toward safety and asset optimization. Plenty of attention was devoted to the 40 years of pipeline integrity assessment through which the engineering assessment takes advantage from inspection and operational data. Suite of services for an integrated solution including ad-hoc engineering and repair system readiness have been identified as the main pillars for best-in-class Operators. Case histories and integrated solution to ensure satisfactory performance and safety have been presented.