Seamless tube packaging

According to GB2102-88. There are three types of steel pipe packaging: bundling, boxing, oiling or oiling.
Steel pipe is a long strip of steel with a hollow cross-section and no joints around it. Steel pipes have a hollow cross-section and are widely used as pipelines for transporting fluids, such as oil, natural gas, gas, water, and certain solid materials. Compared with solid steel such as round steel, steel pipe is lighter when its bending and torsional strength is the same. It is a kind of steel with economic section and is widely used to manufacture structural parts and Machine element, such as oil drill pipe, automobile transmission shaft, bicycle frame and steel scaffolding used in construction.
Manufacturing circular parts using steel pipes can improve material utilization, simplify manufacturing processes, save materials and processing time, such as rolling bearing rings, jack sleeves, etc. Steel pipes have been widely used for manufacturing. Steel pipes are also an indispensable material for various conventional weapons, and they are used to manufacture gun barrels and barrels. Steel pipes can be divided into circular pipes and irregular pipes according to their cross-sectional area and shape. Due to the fact that under the condition of equal circumference, the circular area is the largest, and circular pipes can transport more fluid. In addition, when the circular ring section is subjected to internal or external radial pressure, the force is relatively uniform, therefore, the vast majority of steel pipes are circular pipes.
However, circular pipes also have certain limitations. For example, under the condition of plane bending, circular pipes are not as strong as square and rectangular pipes in Flexural strength. Some agricultural machinery frameworks, steel and wood furniture, etc. are commonly used with square and rectangular pipes. Special shaped steel pipes with other cross-sectional shapes are also required for different purposes.
1. Seamless steel pipes for structural purposes (GB/T8162-2008) are seamless steel pipes used for general structures and mechanical structures.
2. Seamless steel pipes for fluid transportation (GB/T8163-2008) are general seamless steel pipes used for transporting fluids such as water, oil, and gas.
3. Seamless steel tubes for low and medium pressure boilers (GB3087-2008) are high-quality carbon structural steel hot rolled and cold drawn (rolled) seamless steel tubes used to manufacture Superheated steam tubes, boiling water tubes for low and medium pressure boilers of various structures and Superheated steam tubes, large smoke tubes, small smoke tubes and arch brick tubes for locomotive boilers.
4. Seamless steel pipes for high-pressure boilers (GB5310-2008) are high-quality carbon steel, alloy steel, and stainless heat-resistant seamless steel pipes used for manufacturing the heating surfaces of high-pressure and above water tube boilers.