Radiographic Testing (RT), also known as industrial radiography, is a critical discipline in nondestructive testing. Its primary purpose is to detect macroscopic geometric defects in workpieces. RT includes various methods tailored to specific characteristics, such as X-ray Computed Tomography (X-CT), Computer Radiography (CR), and conventional radiography.

Stainless steel pipes can be classified into two types: seamless pipes and welded pipes. Seamless pipes are produced by cold drawing or cold rolling, with high dimensional accuracy and surface quality, suitable for high-demand applications such as petrochemicals and medical equipment. Welded pipes a

Metal corrosion problems are widespread in many areas of the national economy, such as oil and gas, petrochemical, transportation, machinery manufacturing, etc. It can be said that corrosion problems exist wherever metal materials are used. Metal materials are damaged by the action of surrounding media, which is called metal corrosion.