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Abstract: To address deformation and fracture at pipe joints caused by insufficient resistance to axial tension and transverse bending in engineering applications, this paper reviews recent studies worldwide on the axial tensile, transverse bending, and other mechanical properties of ductile iron...

Understanding Double Ferrule Tube Fittings Stainless steel double ferrule tube fittings are widely used for connecting seamless instrumentation tubing and small-bore process piping in applications where leak-tight performance, vibration resistance, and reliable mechanical retention are required. Unlike...

Understanding Welded Union Fitting Technology Importance of Welded Union Fittings in Industrial Systems Welded union fittings are important connection components widely used in industrial piping, hydraulic systems, mechanical engineering equipment, and reinforced concrete construction applications....

What Is a Diaphragm Coupling? A coupling is a mechanical component used to connect two shafts in different machines or mechanisms so that they can rotate together and transmit torque. In many power transmission systems, the coupling does more than simply transfer rotational power. Depending on its design,...

1. Introduction: Comparing 430 and 304 Stainless Steel Stainless steel is one of the most widely used metal materials in pipe industries due to its excellent durability, corrosion resistance, and attractive appearance. Among various stainless steel grades, 430 stainless steel and 304 stainless steel...

1. Introduction: The Rising Role of Aluminum 3003 Coil in New Energy The global energy landscape is undergoing a fundamental transformation as countries and industries accelerate their transition toward cleaner and more sustainable energy solutions. Driven by ambitious carbon reduction targets and the...

Abstract: Based on the operating principle of the magnetic leakage detector (MLD), this paper clarifies the signal identification characteristics associated with pipe dents and bends. Using actual inspection data from a 711 mm natural gas pipeline as a case study, the signal characteristics of pipe...

Abstract This study investigates abnormally high local hardness and metallographic microstructure observed in a high-temperature reheat steam pipeline elbow fabricated from SA335 P91 steel in a power plant. The chemical composition, wall thickness, hardness, and microstructure of the elbow...

5.1.1 Evolution of the Flow Field in the Bend The influence of flow velocity on the flow field characteristics within the pipe bend was investigated while the bend diameter ratio and solid particle concentration were kept constant. A bend diameter ratio of R/D = 3.5 and a solid particle concentration...

Abstract: This study investigates pipe perforation and leakage caused by erosion from ammonium chloride crystallization in the top circulation system of heavy-oil catalytic cracking units. By analyzing the erosion and wear behavior of salt crystallization, areas prone to perforation are identified,...

Abstract: This study investigates the formation of the σ phase in austenitic heat-resistant steel pipe joints used in power plant boilers. Results show that different morphologies of the σ phase precipitate in austenitic steel joints after high-temperature aging. The formation...

Abstract: During a scheduled inspection at a petrochemical plant, pitting corrosion was detected in the base material of a TP304 ethylene pipeline elbow. To determine the cause and develop effective countermeasures, a comprehensive analysis was conducted, including evaluation of the base material’s...