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Analysis of the causes of transverse cracks on the inner wall of cold-drawn seamless steel pipes
1. Analysis of crack characteristics It can be seen that there are many transverse cracks distributed along the longitudinal direction of the steel pipe. The cracks are arranged neatly. Each crack has a wavy feature, with a slight deflection in the longitudinal direction and no longitudinal scrat...Read more -
Quenching deformation in steel pipe production
1. Residual stress and deformation: When steel is heated to about 450℃, it changes from an elastic body to a plastic body, and plastic deformation is likely to occur at this time. On the other hand, when heated to about above 450℃, the stress disappears due to the residual recrystallization. Ther...Read more -
6 questions about heat treatment deformation of steel pipes
First, the quenching strain has dimensional change and shape change. Quenching strain (distortion) has two types: dimensional change and shape change (deformation). The so-called dimensional change is the dimensional change caused by expansion or contraction caused by phase change during quenchin...Read more -
Uses and packaging and storage of oil casing
First, the use of oil casing Oil casing is a large-diameter pipe that plays the role of fixing the wall or wellbore of oil and gas wells. The casing is inserted into the wellbore and fixed with cement to help the wellbore separate the rock layer and prevent the wellbore from collapsing while ensu...Read more -
Cold processing in industrial steel pipe inspection
Overview of cold processing of steel pipes; Characteristics and process flow of cold processing of steel pipes Cold processing of steel pipes includes cold rolling, cold drawing, cold tension reduction, and spinning, which are the main methods for producing precision thin-walled, and high-strengt...Read more -
Analysis of the basic causes of steel pipe fracture
There are thousands of varieties of steel pipes used in various industries. Each steel pipe has a different trade name due to different properties, chemical composition, or alloy type and content. Although the fracture toughness value greatly facilitates the selection of each steel, these paramet...Read more -
What are the common oil pipes for drilling
Oil country tubular goods, also known as oil country tubular goods, are the foundation of the oil industry. Casing, tubular goods, and drill string components (drill pipe, drill collar, square drill pipe, etc.) are collectively referred to as oil country tubular goods (OCTG). Oil country tubular ...Read more -
D508 steel pipe has superior performance and wide application
D508 steel pipe is a steel pipe product with superior performance and wide application. It has the advantages of high strength, wear resistance, corrosion resistance, etc., and has important applications in engineering construction, machinery manufacturing, energy transportation, and other fields...Read more -
Details of 42CrMo seamless alloy steel pipes commonly used in industrial projects
42CrMo seamless steel pipe is an important industrial material, widely used in petroleum, chemical industry, natural gas transportation, and other fields. 42CrMo seamless steel pipes implement the standards GB/T8162 seamless steel pipes for structures, GB/T8163 seamless steel pipes for fluid tran...Read more -
Process, characteristics, and application of X70Q seamless steel pipe for pipelines
X70Q seamless steel pipe is a high-performance pipeline material, which has been widely used in many fields with its excellent mechanical properties and corrosion resistance. First, the properties of X70Q seamless steel pipe for pipelines ① Product implementation: API 5L pipeline steel pipe speci...Read more -
Application fields of welded steel pipes and quality control and inspection of welded steel pipes
Welded steel pipes are widely used in the oil and gas industry, as well as in construction and infrastructure construction, and play an important role. First, application in the oil and gas industry: 1. Oil pipelines: Welded steel pipes are widely used in pipeline systems for transporting oil and...Read more -
Uses of seamless steel pipes commonly used in industrial projects
Seamless steel pipe is a long steel strip with a hollow cross-section and no seams around it. Seamless steel pipe has a hollow cross-section and can be used as a pipeline for conveying fluids, such as pipelines for conveying oil, natural gas, coal gas, water, and certain solid materials. Compared...Read more