With the development of society and the progress of science and technology, cold-rolled coil, as an important material, has been widely used in industrial production. The cold-rolled coil is processed by the steel mill through the cold-rolled process, which has many unique characteristics and is suitable for many industries, providing reliable material support for all walks of life.

Section steel is a common metal material that is widely used in construction, manufacturing and other fields. It has excellent strength and durability and plays an important role in a variety of applications.

Galvanized seamless steel pipe, as a pipe with high strength and excellent corrosion resistance, is widely used in many fields such as industry, construction, energy and transportation, and has become an indispensable part of modern engineering materials.

What are the types and uses of cold-drawn seamless steel pipesThe types of cold-drawn seamless steel pipes can be divided into hot-rolled pipes, cold-rolled pipes, cold-drawn seamless steel pipes, extruded pipes, etc.

API 5I Analysis: Performance and application in pipeline engineering API 5L standards and features API 5L pipe properties and applications

At present, pipelines are mainly used in long-distance oil and gas transportation, and the pipe steel pipes used in long-distance pipelines are mainly spiral submerged arc welded steel pipes and straight seam double-sided submerged arc welded steel pipes. Because the spiral submerged arc welded pipe is made of strip steel, the wall thickness is limited, and the improvement of steel grade is limited by the heat treatment of the material. In addition, the spiral submerged arc welding pipe has some insurmountable shortcomings, such as long weld, large residual stress, and poor reliability of the weld. With the increasing demand for oil and gas conveying steel pipes, they are no longer used in densely populated areas and areas with high reliability requirements, and spiral welded pipes are gradually being replaced by straight seam welded pipes.