In the #OilAndGas industry, the selection of materials for hydrocarbon reactors is crucial due to the extreme operating conditions. The 2 ¼ Cr-1Mo steels are preferred for their mechanical strength, weight optimization, and resistance to #hydrogen and embrittlement. The presence of hydrogen in the reactors requires special precautions and the development of #MPTCurves to prevent brittle fracture. Predictive assessment of brittle fracture from the design stage is essential, considering defects such as pores or inclusions. The position and morphology of cracks are critical in the calculations of fracture mechanics, as well as the residual stresses from welding. At #CADE, we use #AdvancedSimulation to identify regions prone to crack propagation, covered by Part 9 of the #API579 / ASME FFS-1 code. Our expertise in simulation and materials technology positions us as leaders in #StructuralIntegrity calculations and Level 3 Fitness for Service (#FFS) analysis. https://lnkd.in/e3enqFxP #NDTInspection #MechanicalEngineering #ASMEFFS1
CADE Soluciones de Ingeniería, S.L.’s Post
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ASME Pressure Vessels Expert | Chair for ASME Spain Section | Design by analysis | FEM specialist | Mechanical Engineering Enthusiast
Predictive failure assessment during design stage is a powerful tool to avoid brittle fracture. ➡️ the next question is how to implement it? Not only defining MPT curves to ensure a safe & optimized startup/ shutdown but also considering the effect of a potential crack. Don’t miss this post!
In the #OilAndGas industry, the selection of materials for hydrocarbon reactors is crucial due to the extreme operating conditions. The 2 ¼ Cr-1Mo steels are preferred for their mechanical strength, weight optimization, and resistance to #hydrogen and embrittlement. The presence of hydrogen in the reactors requires special precautions and the development of #MPTCurves to prevent brittle fracture. Predictive assessment of brittle fracture from the design stage is essential, considering defects such as pores or inclusions. The position and morphology of cracks are critical in the calculations of fracture mechanics, as well as the residual stresses from welding. At #CADE, we use #AdvancedSimulation to identify regions prone to crack propagation, covered by Part 9 of the #API579 / ASME FFS-1 code. Our expertise in simulation and materials technology positions us as leaders in #StructuralIntegrity calculations and Level 3 Fitness for Service (#FFS) analysis. https://lnkd.in/e3enqFxP #NDTInspection #MechanicalEngineering #ASMEFFS1
Predictive Assessment of Britle Fracture Failure in Hydrocarbon Reactors
https://cadeengineering.com
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Introducing #MTSCO #Inconel625: Versatile and High-Performance Alloy Inconel 625 is a solid-solution matrix-stiffened face-centered-cubic alloy, known for its exceptional properties. With a low carbon content and stabilizing heat treatment, it shows little tendency to sensitization even after 50 hours at temperatures between 650 and 450℃. Key Characteristics: ⚫#CorrosionResistance: Outstanding resistance to pitting, crevice corrosion, and intergranular attack. Almost immune to chloride-induced stress-corrosion cracking. ⚫Temperature Performance: Maintains mechanical properties up to 550°C. Approved for pressure vessels with wall temperatures from -196 to 450℃. ⚫High-Temperature Applications: The solution-annealed version, Alloy 625 (grade 2), is ideal for temperatures above 600℃, offering high strength and resistance to creep and rupture. #Applications: Inconel 625 is preferred for its versatility in demanding environments: Chemical Processing: Superphosphoric acid production equipment, nuclear waste reprocessing. ⚫ Marine Engineering: Heat exchangers, piping systems, offshore equipment. ⚫Pollution Control: Flue gas scrubbers, damper components, chimney linings. ⚫High-Temperature Use: Components in waste gas systems, flare stacks, recuperators, submarine diesel engine exhausts, and superheater tubes in waste incineration plants. Contact for more details: office@mtstainlesssteel.com #Alloy625 #Inconel #HighTemperature #CorrosionResistance #MarineEngineering #ChemicalProcessing #IndustrialApplications #HeatTreatment #NickelAlloy #PipingSystems #SeamlessTubu #tube #pipe #OffshoreEngineering #PollutionControl #HighStrength #Welding
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ASIMER GROUP GROUP completes the: - #premachining - NDTs on sealing áreas - Final #machining, and - PT on BWs for 16 #topentry #cryogenic double #eccentric butterfly #valve bodies 24” 300#, in CF8M, performed in its #Trevisan DS900, for a final #french customer. In #Chemical and #LNG (liquefied natural gas) industries, pipelines and valves are involved in the transmission of cryogenic #liquids and #gasses. These are some cryogenic valves applications. Cryogenic refers to materials and fluids that are handled below -101℃, i.e., -239℉, so these valves must be produced from materials that will withstand these extreme temperature ranges. #FEATURES & #BENEFITS: · #Cryogenic valves are capable of handling #temperatures ranging from 37℉ to -320℉. · Cryogenic valves have excellent #bubbletight #shutoff features to prevent leakage at any cost. As the fluids transported in these valves and pipelines are chemicals, #leakages can cause extreme results. · Usually, cryogenic valves are designed to have long stems. This is because the valve stem seal should be kept #away from the cold fluid. · Cryogenic valves are specifically employed in chemical, #LNG, CNG, and other #oilgas industries. · Compared to standard valves, these valves are #light. Also, they should be very #clean and lubricant-free. #naturalgas #topentry #butterfly #valves #cryogenicvalves #addedvalue #engineering #quality #Asimergroup #highlyengineeredvalves #accuracy
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ASIMER GROUP completes the: - Premachining - NDTs on sealing areas - Machining, and - PT on BWs for 16 top-entry, cryogenic double eccentric butterfly valve bodies (24” 300#, in CF8M), performed in its Trevisan DS900, for a final French customer. In Chemical and LNG (liquefied natural gas) industries, pipelines, and valves are involved in the transmission of cryogenic liquids and gases. These are some cryogenic valves applications. Cryogenic refers to materials and fluids that are handled below -101℃, i.e., -239℉, so these valves must be produced from materials that will withstand these extreme temperature ranges. FEATURES & BENEFITS: - Cryogenic valves are capable of handling temperatures ranging from 37℉ to -320℉. - Cryogenic valves have excellent bubble-tight shutoff features to prevent leakage at any cost. As the fluids transported in these valves and pipelines are chemicals, leakages can cause extreme results. - Usually, cryogenic valves are designed to have long stems. This is because the valve stem seal should be kept away from the cold fluid. - Cryogenic valves are specifically employed in chemical, LNG, CNG, and other oil and gas industries. - Compared to standard valves, these valves are light. Also, they should be very clean and lubricant-free. #NaturalGas #TopEntry #ButterflyValves #CryogenicValves #AddedValue #Engineering #Quality #AsimerGroup #HighlyEngineeredValves #Accuracy
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■Post weld heat treatment (#PWHT) is a controlled process in which a material that has been welded is reheated to a temperature below its lower critical transformation temperature, and then it is held at that temperature for a specified amount of time. It is often referred to as being any heat treatment performed after welding; however, within the oil, gas, Petrochemical and nuclear industries, it has a specific meaning. Industry codes, such as the ASME Pressure Vessel and Piping Codes, often require mandatory performance of PWHT on certain materials to ensure a safe design with optimal mechanical and Metallurgical properties. ●The need for PWHT is mostly due to the residual stresses and micro-structural changes that occur after welding has been completed. During the welding process, a high temperature gradient is experienced between the weld metal and the parent material. As the weld cools, residual stress is formed. For thicker materials, these stresses can reach an unacceptable level and exceed design stresses. Therefore, the part is heated to a specified temperature for a given amount of time to reduce these stresses to an acceptable level. In addition to residual stresses, microstructural changes occur due to the high temperatures induced by the welding process. These changes can increase hardness of the material and reduce toughness and ductility. The use of PWHT can help reduce any increased hardness levels and improve toughness and ductility to levels acceptable for design👨🔧👩🔧✅💯
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Continuous Emission Monitoring Systems Measurement principle: particulate matter subsystem (laser backscattering), gaseous pollutant subsystem (DOAS), flue gas parameter measurement system Sampling method: extraction sampling, heat tracing, with purging function and calibration Function Applicable: electric power, boiler, metallurgy, steel industry #CEMS #AIRQUALITYMONITORING #ContinuousEmissionMonitoring #MONITORING #steelindustry #particulate #machines #electricpower
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Magnetic Flux Leakage (MFL) Testing for Cross Country Oil & Gas Pipeline :- Metal thickness baseline of the new constructed pipeline or old pipeline corrosion situation ....is latest technique compared to other baseline survey and IP method.
A Review of Magnetic Flux Leakage Nondestructive Testing
mdpi.com
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Full Professor, University of Belgrade, Faculty of Mechanical Engineering, Subject Editor - International Journal of Hydrogen Energy by Elsevier, Reviewer - European Research Council (ERC), Executive Committee - ESIS
Highlights: • A probabilistic methodology for the assessment of the corroded pipeline reliability is presented. • The radial and axial corrosion rates were assessed based on the intelligent inspection tool results. • The sensibilities of the corrosion defect depth and corrosion rate were analyzed. • A methodology for the remaining life calculation of corroded pipelines was established. • Reliability analysis is done for the whole pipeline and for the four sections. #pipelines #corrosion #energy #mechanicalengineering #gas #corrosionmanagement #pipelineintegrity
A probabilistic approach to estimate the remaining life and reliability of corroded pipelines
sciencedirect.com
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Plug Flow Reactor ---- PFR A plug flow reactor (PFR) is a type of chemical reactor commonly used in the chemical and petrochemical industries. It is a continuous-flow reactor where the reactants flow through a pipe or vessel in a plug-like manner, with no back-mixing or dispersive effects. The key characteristics of a plug flow reactor are: 1. Ideal Plug Flow: - The reactants flow through the reactor in a plug-like manner, with no radial or axial mixing. This means that the residence time distribution is narrow, with all fluid elements spending the same time in the reactor. 2. Constant Cross-Sectional Area: - The reactor has a constant cross-sectional area along its length, which ensures that the velocity profile is also constant. 3. Isothermal Operation: - Plug flow reactors are often designed to operate under isothermal conditions, with a constant temperature along the reactor length. 4. Continuous Operation: - Plug flow reactors are typically operated in a continuous mode, with a constant volumetric flow rate of reactants entering and products exiting the reactor. Advantages of using a plug flow reactor include: 1- Efficient utilization of reactor volume: The lack of back-mixing ensures that all fluid elements spend the same time in the reactor, maximizing the conversion of reactants. 2- Ability to handle exothermic reactions: The isothermal operation helps to control temperature changes and prevent hot spots or runaway reactions. 3- Scalability: Plug flow reactors can be easily scaled up or down to accommodate different production volumes. The design and operation of a plug flow reactor require careful consideration of factors such as reactor geometry, fluid dynamics, heat and mass transfer, and kinetics of the specific chemical reactions involved. #reactors #chemicalengineering #chemicals #maintenance #oilandgasindustry
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Good read for those in the welding industry.
Scott Laymon, the National Advanced Fabrication Project Leader for Airgas, recently spoke with The Welder, answering questions on common shielding gas mixes, transfer modes, often overlooked aspects and how shielding gases can impact pre-and post-weld quality. Shielding gases do much more than just protect the molten weld pool from atmospheric contamination. Selecting the correct gas mix and composition for MIG welding can make a difference in weld quality, spatter levels, fusion, heat input, fume generation, and deposition efficiency. Read more below! https://bit.ly/4bPOTlQ
Answers about MIG shielding gas selection, composition
thefabricator.com
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