Steel Pipes
Langzo Steel is located in the Chinese steel base-Boxing city, Shandong Province, China which is a steel group company integrating steel industry and international trade, our subsidiaries are: Shandong Langzo New Materials Co., Ltd.; Vanten Metal Corporation Limited and Tangshan Jingjin ColdRolled Galvanizing Co.. Ltd.etc. Our main products are flat products of Galvanized Steel Coils, Galvalume Steel Coils, Color Coated Steel Coils, Corrugated Steel Roofing Sheet, Cold Rolled FullHard, Aluminum Color Coating Coils, Tinplate, TFS, etc and long products of Angles, channel, H beam, Wire rod, Rebar/ Deformed Bar, steel pipe, steel strips. etc.
Why Choose US
Our Factory
Tangshan Xunzhuo International Trade Co., Ltd. is a steel group company integrating the steel industry and international trade. We have 7 production lines, more than 500 employees, and a monthly production capacity of 100,000 tons, completing orders for customers efficiently and timely.
Production Market
With more than 10 years development, Xunzhuo has gained a very good reputation of our clients from Europe, Africa, Latin America, Southeast Asia and Middle East, etc.The personnel in each position of the company have more than many years of experience in foreign trade.
Quality Assurance
Professional technical quality inspection personnel conduct quality inspections on the products ordered by customers. From production, packaging to transportation, they carefully conduct quality tracking throughout the entire process to ensure that customers receive satisfactory products.
Excellent service
We have a professional service team and a complete sales process. We promise that from the client's order to the customer's receipt of the goods, the whole process will allow clients to be 100% at ease!
Types of Steel Pipes
Carbon Steel Pipe
The steel used for Carbon Steel Pipe are steel sheets or strips, which are divided into furnace welded pipes, electric welded (resistance welded) pipes and automatic arc welded pipes due to their different welding processes.
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Stainless Rectangle Pipe
Stainless Rectangle Pipe is a kind of hollow long round steel, which is widely used in industrial transmission pipelines and mechanical structural components such as petroleum.
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Seamless Steel Pipe
We supply high-quality Seamless Steel Pipe, carbon steel pipe,alloy steel pipe and so on. It keeps a large number of stocks all year round with complete types and specifications.
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Galvanized Steel Pipe
Galvanized Round Pipe is a welded steel pipe with a hot-dip or electro-galvanized layer on the surface. Galvanizing can increase the corrosion resistance of steel pipes and prolong their service life.
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GI Rectangular Tube
GI Rectangular Tube's surface is hot-dip plated or galvanized layer welded steel pipe. Hot-dip galvanized Tube can increase the corrosion resistance of steel pipes and prolong the service life.
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Advantages of Steel Pipes
Durability
Steel pipes are much more durable than pipes or tubes made out of other materials. Even without all the other benefits attached to using them, the strength of steel pipe makes it the best option for most projects. its strength enables it to withstand vibrations, shock and high pressure. Unlike other metals, steel will bend rather than break under extreme conditions, helping to prevent spills or leaks.
Rust-Proof
Unlike other metals that rust or corrode easily, steel tubes are rust-proof and are resistant to other chemical reactions that can cause corrosion. This helps them to be more maintenance-free than other types of tubes and pipes, lasting for many years beyond installation.
Easy Installation
Custom steel pipes can be created to any height, width and strength required to meet the unique specifications of your job. They can also be easily modified on-site, making them easy to install. Any maintenance or modifications that are needed after installation can be done quickly and easily because steel is a very easy metal to work with in that manner.
Greater Capacity
Steel pipe is considerably stronger than other types of metal pipes. Itcan be made larger or thinner without compromising strength, quality or durability. This makes steel pipe more affordable and adaptable for specific needs or budgets.
How is Steel Pipe Manufactured
1. Raw Material Selection
The first step in the manufacturing process of steel pipes is the selection of raw materials. As you could guess, the primary material used during this process is steel.
Steel is an alloy made from iron and carbon, with the carbon content in the steel being a large determinant in the strength and durability of the finished product.
It may also contain other materials like nickel, chromium, and molybdenum to improve specific properties of the product.
2. Heating & Rolling
Once the raw materials have been compiled, the next step is to heat and roll the steel into a cylindrical shape.
In order for this to occur, the steel must be heated to a temperature of around 2100-2400°F, then passed through a rolling mill. The rolling mill applies pressure to the steel, creating a cylindrical shape.
This process may be repeated many times until the desired thickness and diameter of the steel are achieved.
3. Welding
After the steel has been rolled into a cylindrical shape, the next step in the process is to weld the edges together to turn the curved metal into a usable steel pipe.
Two primary methods of welding can be used in the manufacturing of steel pipes:
- Electrical resistance welding (ERW)
- Submerged arc welding (SAW)
- In the ERW method, the edges of the steel cylinder are heated and pressed together using an electrical current.
On the other hand, with the SAW method, the edges of the steel are heated using an electrical arc, then a layer of flux is applied to protect the weld from outside contamination.
4. Sizing & Cutting
With the welding step complete, manufacturers will move on to the next stage where they size and cut the pipe to their liking.
The steel pipe is passed through a series of sizing rollers that reduce the diameter of the pipe to the desired size. After this, the pipe is cut to the required length using a saw or torch.
5. Testing & Inspection
The final step in the manufacturing process is to test and inspect the pipes. Depending on the manufacturer, the steel pipe will undergo a series of tests to ensure that it meets the required specifications. Such tests can include hydrostatic testing, ultrasonic testing, and X-ray testing.
Application of Steel Pipes
The construction industry
Since steel pipe is both durable and lightweight, it's commonly utilized by the construction industry in commercial and residential buildings, as well as in industry sectors including power, water, sewer, manufacturing and more. Steel pipe is also a top choice in the construction industry because it's resistant to rust and corrosion, meaning that it won't require frequent repairs or replacement. This is especially important in water, plumbing and electrical systems, since leaks or breaks in the steel pipe can be both dangerous and costly.
The oil and gas industry
Steel pipe is ideal for use in extreme conditions such as corrosive environments, low and high temperatures and high pressure. For this reason, steel pipe is prevalent in the oil and gas industry, especially in pipes like gathering lines (the tubes that transport oil or gas from the producing area to a storage facility or larger main pipeline), and pipe trunk lines (the welded, large-diameter steel pipes that are used to transport natural gas over long distances).
The shipbuilding industry
The strength of steel makes it a great option for ship building since it withstands vibrations, shock and high pressure. Unlike other metals, steel with bend rather than break in extreme conditions, which means it's less likely to crack or leak. In the shipbuilding industry, steel pipe is designed and manufactured for the boilers, super heaters and pressure systems of a ship.
The textile industry
The versatility of steel pipe makes it a popular choice in the textile industry for the production of bale openers, mixers, carding machines, spinning machines, winding machines and texturing machines.
The agricultural industry
Steel pipe is frequently used in agricultural fittings due to its durability and ability to withstand pressure. Steel is also sometimes mixed with carbon to create a more lightweight yet sturdy agricultural fitting. Farmers and other agricultural organizations use steel pipe in dozens of applications, including tractor engines, grain elevators, field drainage systems, fertilizer applications, vent pipe systems and more.
Industrial applications
Steel pipe is a common choice in manufacturing facilities, warehouses and other industrial locations because it's rust-proof and doesn't corrode, affording facilities a lifetime of dependable use. Round steel tubing is often used to transport liquids or gas from one area of an industrial facility to another, as well as in the construction of industry structures itself.
FAQ
We're professional steel pipes manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to wholesale high-grade steel pipes in stock here from our factory. Contact us for quotation.
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