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Ammonia Storage - Mitigating Risks with Linings

posted 17 hours ago
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TRACK: Non-metallics With ever more countries focused on achieving Net-Zero-Emissions by the year 2050, the contribution and importance of energy transition moving away from traditional fossil fuels will continue to grow apace. Many facility owners are initially looking to blend ammonia within current fuel streams to generate emission benefits, however this creates challenges for handling and storage related to asset protection, corrosion protection (including ammonia stress corrosion cracking) and maintenance constraints. Site Health and Safety and risk management need to be fully aware regarding associated hazards and mitigation steps related to anhydrous ...
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MTI Announces New AsiaTAC Associate Director Philip Song

posted 18 hours ago
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ST. LOUIS, MO – The Materials Technology Institute (MTI) is pleased to announce the hire of Philip Song as an Associate Director for the AsiaTAC region. Song has over 20 years in the metals industry with expertise in stainless steel, nickel, specialty alloys, and welding technologies. His familiarity with MTI dates back to his role of Chief Representative and Manager of Market Development with MTI member Nickel Institute from 2015-2023. Now in the AD role, he will support MTI through project management, membership recruitment and support the planning of the region's TAC meetings. Song replaces the previous AsiaTAC AD Paul Liu, who retired at the end of ...
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Design for Longevity: Fluoropolymers in Corrosion Protection - Opportunities and Overcoming Limitations

posted 4 days ago
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TRACK: Non-metallics Chemical reactions involving hazardous and highly corrosive chemicals pose safety risks and present particular challenges in reactor design and the section of material of construction. This is particularly true for reactor systems involving the use of Hydrofluoric acid in fluorination reactions encountered in numerous synthetic pathways of active ingredients. Under such working conditions, because of increasing complexity of reactor requirements combined with high demands on versatility and performance, there is strong motivation to develop workable and cost effective design strategies which encompass a deeper understanding of the relationship ...
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High-Temperature Corrosion Resistance of Commercial Wrought Alloys in Extreme Environments

posted 5 days ago
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TRACK: Emerging Technology High-temperature corrosion poses significant challenges to high-temperature wrought alloys in process industries because of corrosion degradation, especially in extreme environments. Although a lot of high temperature corrosion data of high-temperature wrought alloys has been generated from lab testing and industry practices, the challenges always exist as the corrosion behaviors of an alloy often vary with operation conditions, such as an alloy with satisfied corrosion resistance in one process may not be suitable to another process. For instance, the operation temperature of ammonia synthesis process is below 1000°F, in which Fe-base ...
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Creep Fatigue Interaction Learnings from 1 ¼ Cr 0.5 Mo - P11 Grade Piping in Superheated Steam Service

posted 6 days ago
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TRACK: Safety/Reliability This paper presents experiences from failure in P11 metallurgy piping because of creep-fatigue interaction. Several cracks were observed in P11 metallurgy piping in superheated steam application at 510 deg C after satisfactory service of 25-30 years. Extensive inspection of the piping systems was carried out. Advanced FEA study was conducted on the piping system to identify susceptible locations for creep related damages. Advanced metallurgical analysis was done to correlate the inspection observations with material degradation. The learnings emphasize on the need to evaluate high temperature piping and piping component for in-service ...
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Fatigue of Half-Pipe Jackets: Why do Half-Pipe Jackets Fail?

posted 11 days ago
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TRACK: Emerging Technology Finite element analysis and welded joint method of ASME Section 8, Division 2 is used to analyze the fatigue life of fillet welds on half-pipe jacketed vessel heads. MTI Global Solutions Symposium 2026 February 23-26 Charlotte, NC See More Symposium Sessions
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Chemical Resistant Masonry: Refractory and Ceramics - Is there a difference?

posted 12 days ago
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TRACK: Non-metallics The AI overview describes the main difference between chemical resistance and refractory properties as lying in their focus: chemical resistance describes a material's ability to withstand chemical attack or degradation, while refractory properties, specifically high refractoriness, describe a material's ability to withstand high temperatures without losing its form or strength. This symposia presentation will explore two technologies often confused, focusing on their individual strengths and how to both differentiate and use them effectively. We will offer some examples of how each technology is used in real-world scenarios. We will also ...
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Unexpectedly High Corrosion Rate of Corrosion-Resistant Alloys in Non-Aqueous Environment

posted 13 days ago
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TRACK: Safety/Reliability Corrosion-resistant alloys (like, Iron-alloys, Nickel-alloys, Titanium-alloys etc.) are widely used in highly corrosive process conditions that is strongly correlated to alloys composition and their microstructure. Most of the corrosion study on alloys in industries and academia are focused on aqueous conditions, as, it has been observed that non-aqueous chemistries are not aggressive to corrosion-resistant alloys particularly at not-so-elevated temperatures. In the present study, it was observed that corrosion-resistant alloys (like, 316L, C-276, Ni-200) experience a very high corrosion rate at temperature as low as ambient in a combination ...
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Trust but Verify – The Engineer’s Responsibility in Safety and Reliability

posted 17 days ago
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TRACK: Safety/Reliability From an early age, many of us are encouraged to “go with the flow” and avoid causing waves. Yet, in the world of manufacturing and materials engineering, silence can jeopardize safety and reliability. This presentation explores the crucial responsibility engineers have to raise concerns when something doesn’t add up. Through a compelling case study involving the unexpected failure of multiple Alloy 20 flanges during hydrostatic pressure testing, we will examine how an initial third-party report misdiagnosed the cause of failure. Only after engineers questioned the findings and pursued further investigation was the true root cause uncovered—enabling ...
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Improvements in Thermoplastic Pipeline Welding for Industrial Use

posted 18 days ago
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TRACK: Non-metallics AGRU is advancing infrared (IR) welding technology for fluoroplastics using specialised SP IR Series machines. These machines are widely used for welding PVDF, ECTFE, PE and PP in the chemical and semiconductor industries. The latest innovation involves using these machines to weld FRP dual laminate pipes. Specially designed clamping systems and customised welding parameters have been developed to enable the safe and reliable joining of these pipes, which are made from PP, PVDF, ECTFE, FEP and PFA. This section of the presentation will introduce standard welding methods for FRP dual laminate pipes in workshops and on site, and will compare ...
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Cold Spray Repair of Reactive Metals

posted 20 days ago
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TRACK: Emerging Technologies Hatch and its Canadian partner, Polycontrols Inc. are working with students and research professors at McGill University and Memorial University to further develop a novel process that utilizes high-pressure, cold-gas dynamic spraying (“cold-spray”) to apply titanium metal to damaged valve parts. The goal is to produce repaired parts that are as reliable as new parts, but with a lower total cost than that of replacement parts and with less environmental impact. Cold-spray is a promising technology, in that it achieves this without the use of expensive shielding gases, and it has a lower energy consumption than casting, forging or ...
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The benefits of nitrogen alloyed austenitic stainless steel UNS S31655 in tank and vessel applications

posted 25 days ago
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TRACK: Materials for Harsh Environments 300-series austenitic stainless steels are widely used in API tanks and ASME vessels due to their high corrosion resistance and good fabricability. They are versatile and can be applied from cryogenic temperatures to elevated temperatures. However, their mechanical strength is moderate which results in heavy walls when the design pressure is high. Duplex stainless steel can often serve as a great alternative with its higher strength but is not always a feasible solution. Moreover, there are manufacturers who are comfortable of working with 300-series but are hesitant moving to DSS. A potential solution to this challenge ...
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Effect of No Backing Gas Modified Waveform Welding Processes on Promoting MIC Failures in Stainless Steel Water Piping

posted 26 days ago
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TRACK: Failures/Failure Analysis Microbial Influenced Corrosion has been an expensive problem, and has caused non-containment failures during the construction and commissioning of chemical, petroleum refinery, and gas processing plants. Elimination of water from hydrotested pipes has been an ongoing issue. Many failures of austenitic stainless steel pipe have occurred due to MIC in TP 304/304L piping carrying water. Use of modified waveform Gas Metal Arc Welding (processes (STT, RMD, CMD) has gained wide acceptance in pipe fabrication, displacing GTAW in many instances. A simple experiment is being conducted to assess whether a GTAW root provides some protection ...
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Lessons Learned regarding Material Selection of Nonmetallics for Chemical Processing

posted 27 days ago
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TRACK: Non-metallics Chemical processing offers many demanding and unique applications with similarly unique options for materials of construction. Nonmetallic materials can be ideal for these corrosive applications, operating at range of process temperatures. At the surface fluids and service conditions may appear to be typical and common, but operating conditions, feedstocks, and process arrangement can vary widely, potentially leading to different demands and nonmetallic material choices. Fiber Reinforced Plastics (FRP) and dual laminates are common materials of choice for these chemical applications. It is critical to understand all of the process details, ...
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Preventing Environmental Cracking with Engineered Compressive Residual Stress Fields

posted 01-23-2026
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TRACK: Safety/Reliability In certain circumstances, the application of engineered compressive residual stress fields may prevent stress corrosion cracking at significant savings, without the need for expensive alloy upgrades. This presentation will cover the theory behind use of compressive residual stress fields and briefly describe the more common methods for applying them, such as controlled shot-peening, autofrettage, last-pass heat-sink welding, and induction heating stress improvement. Some new methods will be described, such as cavitation shotless peening, laser shock peening and low-plasticity burnishing. Case histories of successful use of engineered ...
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Life Cycle Assessment for Estimating the Carbon Footprint Impact of Tubular Products in the Process Industry

posted 01-22-2026
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TRACK: Materials for Harsh Environments Metal dusting is a damage mechanism that occurs under very specific process conditions, so it is not widespread, but when it occurs it is often at catastrophic rates. Also, although extensive past literature has been published providing laboratory test data, each data set is specific to a set of conditions and they are not easily compared with one another. Often the resistant alloys vary based on the test conditions. This paper builds on past papers by compiling case histories, listing numerous past published literature with test programs, and detailing the current inadequate methods (and subtle caveats) for predicting ...
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Metal Dusting – Case Histories, New Processes with Risks, and Gaps in Knowledge

posted 01-14-2026
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TRACK: Materials for Harsh Environments Metal dusting is a damage mechanism that occurs under very specific process conditions, so it is not widespread, but when it occurs it is often at catastrophic rates. Also, although extensive past literature has been published providing laboratory test data, each data set is specific to a set of conditions and they are not easily compared with one another. Often the resistant alloys vary based on the test conditions. This paper builds on past papers by compiling case histories, listing numerous past published literature with test programs, and detailing the current inadequate methods (and subtle caveats) for predicting ...
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Quit Being So Sensitive – An Investigation of Sensitization Behavior of Alloy 600 During Welding

posted 01-13-2026
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TRACK: Failures/Failure Analysis Sensitization is a known phenomenon that occurs in Alloy 600 in operating temperature ranges of 1000°F to 1800°F due to the precipitation of chromium carbides (Cr7C3 and Cr23C6). The resultant grain-boundary precipitation of these chromium carbides can result in increased susceptibility to intergranular attack when exposed to corrosive media. In this study, the effects of material characteristics (carbon content) and weld processing parameters (heat input, maximum interpass temperature) on Alloy 600’s microstructure and corrosion resistance via ASTM G28A are investigated. Additionally, mitigation techniques (lab-performed post-weld ...
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Embedded RFID Sensors for FRP Corrosion Barrier Monitoring - Update on Implementation in Chemical Process Applications

posted 01-08-2026
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TRACK: Nonmetallics FRP vessel integrity monitoring with MTI RFID sensors continues to advance. Sensor arrays have been installed in 11+ new FRP vessels to support plant equipment integrity programs. Practical application and observations will be discussed based on experience to date. Topics will include pre-installation testing, sensor naming conventions, sensors in secondary bonds, sensor in primary corrosion barriers, fabrication techniques and challenges, sensor interrogation, post-curing and material additives. This presentation will build on the update provided at the 2024 Global Symposium. MTI Global Solutions Symposium 2026 ...
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Using Life Cycle Cost Analysis to Differentiate Materials of Construction Choices

posted 01-06-2026
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TRACK: Safety/Reliability Life cycle cost analysis is widely regarded as a useful tool when comparing material of construction alternatives for new equipment. Despite that, it can be hard to find specific guidance on everything that should be included and how to determine some of the inputs for comparing CPI equipment options. The goal of this talk is to provide a complete step-by-step tutorial on how to conduct this assessment, with discussion points to provide clarification as needed. Examples of topics that are covered in depth are how to determine a failure frequency and how to account for the lost production margin from unplanned downtime within the analysis, ...
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