The largest production of ordinary carbon structural steel, low alloy structural steel, or alloy structural steel rolled and mainly used as pipelines for fluid transportation or seamless steel pipes for general structures
Seamless steel pipe is a steel pipe that is perforated from a whole round steel and has no welds on the surface. According to the cross-sectional shape, seamless steel pipes can be divided into circular and irregular pipes. There are various complex shapes of irregular tubes, including square, elliptical, triangular, hexagonal, melon seed, star shaped, and finned tubes. Thick walled seamless steel pipes and thin-walled seamless steel pipes are classified according to their different uses.
Application of seamless steel pipes
1. The largest production of ordinary carbon structural steel, low alloy structural steel, or alloy structural steel rolled and mainly used as pipelines for fluid transportation or seamless steel pipes for general structures.
According to different uses, it can be divided into three types of supplies:
(1) Chemical composition and mechanical properties
(2) Mechanical performance
(3) Water pressure test.
According to (1), (2), and (3), if the steel pipes supplied are used to withstand liquid pressure, a water pressure test should also be conducted.
3. Special purpose seamless steel pipes include seamless steel pipes for boilers, chemical industry, geology, and petroleum. Seamless steel pipes have a hollow cross-section and are widely used as pipelines for transporting fluids, such as oil, natural gas, gas, water, and some solid materials. Compared with solid steel such as round steel, steel pipes are an economical section steel with the same torsional strength and lighter weight.
Manufacturing structural components and mechanical parts, such as petroleum drill rods, automotive transmission shafts, bicycle frames, and steel scaffolding for construction, is also widely used. It can improve material utilization, simplify manufacturing processes, and save materials and processing time.
What should be noted when purchasing seamless steel pipes?
1. Purchased from a large conventional steel pipe company. Regular large companies generally purchase or act as agents from well-known domestic large seamless steel pipe enterprises, with guaranteed quality.
2. Check the product quality certificate issued by the seamless steel pipe production enterprise and the certificate number for implementing production license management.
3. Choose the appropriate specifications because seamless steel pipes used in different fields have different specifications and functions.
4. Choose seamless steel pipes with different processes, as seamless steel pipes can be divided into cold rolling and hot rolling. Different production processes have different characteristics of steel pipes and different application areas.
5. Different manufacturers can refer to and compare seamless steel pipes of the same specification repeatedly. If it is far below the average, it cannot be purchased.
6. Pay attention to the surface of seamless steel pipes and do not allow defects such as cracks, scars, folds, etc.
7. Batch procurement by manufacturers is the preferred option. If you want to wholesale seamless steel pipes, it is best to directly find other manufacturers. After all, without the need for intermediate links, one can still enjoy certain benefits and save more expenses.
