Tianjin erw black steel pipe

As one of the largest welded steel pipe production bases in the north of China, Tianjin steel pipe is playing a very significant role in the steel pipe market. Tianjin erw black steel pipe is very popular among people at home and abroad. Black steel pipe is generally considered non-galvanized steel pipe compared with galvanized one. During the production of the black steel pipe, there will be kind of black oxide substance formed on its surface, which is one reason that people are used to name it black steel pipe. However, the black oxide substance has no capacity of anticorrosion and antirust. In other words, it is necessary to take some measures to protect the black steel pipe from rusting in daily applications.

As for the modern techniques of Tianjin erw black steel pipe, scientific advancement has greatly improved after the butt-weld method invented by Whitehouse. Today, with modern automatic machines, it has become possible for steel pipe manufactures to produce black steel pipes under the extremely high temperature and pressure. What’s more, it will somewhat facilitate steel pipe suppliers to satisfy different diameter requirements for customers. Meanwhile, with the development of modern manufacturing equipment and inventions in electronics, Tianjin black steel pipe quality can be guaranteed strictly following various manufacturing standards. It is much likely that modern manufacturers will use special X-ray gauges to ensure uniformity in wall thickness of steel pipe in the coming days.

In most applications, black steel pipe’s tensile strength makes it a better choice for people to convey water and gas in rural and urban areas. Besides, round steel pipe can also be used to protect electrical wiring and deliver high pressure steam and air. The oil and petroleum industries widely use black steel pipe for convey large quantities of oil through remote areas. Although it doesn’t have a corrosion resistant layer like the galvanized steel pipes or other welded steel pipes, its high fire resistant performance plays an important role in fire sprinkler system. In addition, its high heat resistant feature makes it possible to deliver hot water but not drinking water. In our daily life, we can often find the sewages made of the black steel pipe. However, there is no doubt that black steel pipe cannot be used to deliver drinking water.

Tianjin erw black steel pipe has different shapes for your choice in the project, such as square steel pipe, round tube and square & rectangular pipe. Furthermore, take square steel pipes for an example, due to the size, wall thickness, diameter and some other different processing methods, they will be applicable to different actual purposes in real life. Meanwhile, they will undergo further welding processing, heat treatment and other procedures for the final finished products.

Structural steel tube applications in life

As a rule, a structural steel shape is a profile, formed with a specific cross section and following certain standards for chemical composition and mechanical properties. Seamless pipe and welded steel pipe are two common types of hollow structural sections in use in the current steel pipe market. Structural steel shapes, sizes, composition, strengths, storage practices, etc., are regulated by standards in most industrialized countries. And each project is judged on its use of structural steel from both an architectural and structural engineering perspective.

Structural steel tubes have been widely used as one kind of building materials in the construction industry for many years due to its strength and stability in use. For example, the flat square surfaces of rectangular steelpipe can ease construction, and they are sometimes preferred for architectural aesthetics in the exposed environments today. Furthermore, structural steel pipe is considered an environment friendly building material in construction industry. Also, some structural steel members, such as I-beams, have high second moments of area, which allow them to be very stiff in respect to their cross-sectional area. In addition, hollow structural sections offer advantages of corrosion protection in applications. Some hollow sections have rounded corners resulting in a better protection than that with sharp corners. This is especially true for the joints in circular hollow sections where there is a smooth transition from one section to another. Meanwhile, this better protection increases the protection period of coatings against corrosion. With regard to steel pipe price in the market, cold formed structural steel tube are relatively high than the hot finished ones. Besides, from the aesthetic viewpoint, cold formed structural steel pipe has a smooth surface, while hot finished sections can be pitted, which can be considered an issue for architecturally exposed structural steel for certain applications.

Compared to other traditional construction materials, structural steel frame is stronger because it was further enhanced by steel reinforcing process. The increase in its standard strength is greater than the total strength of other competing highly strong materials. Today, some steel pipe manufacturers are trying to make customized shapes as per the specific requirements of clients in the world. For example, the elliptical hollow sections have become more popular for architectural designs. Of course, you can often find that some other shapes of structural steel pipes have been used in a variety of infrastructure construction around us.