Advanced technology inspection of carbon steel elbows: The core means to ensure the safety of pipeline systems In modern industrial pipeline systems, carbon steel elbows serve as crucial connecting components, and their quality directly affects the safe operation of the entire system. With the continuous advancement of detection technology, the quality inspection of carbon steel elbows has evolved from traditional manual inspection to today's intelligent and automated inspection systems. This article will comprehensively explore the latest developments in advanced detection technologies for carbon steel elbows, conducting in-depth analyses from inspection methods, technical principles to quality control systems. I. Innovative Applications of Non-destructive Testing Technology Ultrasonic phased array technology has become an important means for inspecting carbon steel elbows. This technology uses multi-element array probes and achieves the deflection and focusing of sound beams by precisely controlling the emission timing of each element. Compared with traditional ultrasonic testing, phased array technology has the advantages of fast detection speed, wide coverage, and high resolution, and can effectively identify tiny defects inside the elbow.