State-Owned Manufacturer and Exporter of various of square&rectangular pipes. Other related products such as ERW pipes, steel conduit, seamless pipes are all included. Email: sigrid.tjtewoo@gmail.com Whatsapp: +1-6303406276 Wechat: sigridexporting Tiktok: sigridtjtewoo Skype: sigrid sun Facebook:http://www.facebook.com/profile.php?id=100095302269327
Hi dear friends,
We are going to close our office due to Chinese Spring Holiday from 9th Feb to 17th Feb. So please don't hesitate to contact me now even during our holiday period if you have any steel pipe importing inquiries.
My main contact information:
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Email: acero.sigridsun@gmail.com Skype: sigrid sun(tianjin tewoo) (8618512243449)
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Hi dear renowned sir/madam,
When it comes to seamless pipes or tubes, they are considered one of the most commonly employed products in numerous different industries. In general, seamless tubes are utilized for transporting liquid and fluid from point A to point B. Learning about seamless tubes and pipes' functions can be vital as it allows us to comprehend how various industries put these to use.
Before being introduced to the many uses of a seamless pipe, it's first and foremost important to understand what exactly the material looks like. Based on the product's name, a seamless pipe is a continuous hollow pipe made of carbon or stainless steel.
A seamless pipe or tube is hollow in nature. The tube is also continuous and is created out of either stainless steel or carbon. The primary purpose of these seamless pipes is to transport liquids and fluids, as discussed earlier. These seamless tubes are created without gaps or serrations to ensure that the transfer of liquids occurs. The lack of gaps ensures the fluid flows freely and is not potentially contaminated by external factors. Another purpose of a seamless pipe is to remove any chance of accidental overflow or random silage. This is why industries such as the shipbuilding, boiler and petrochemical industries rely heavily on seamless tubes.
Seamless pipes are employed in chemical and mechanical processes but also have commercial uses. It is mostly because of its ability to withstand pressure and maintain its shape. Here are some of the reasons why seamless pipes are preferred throughout.
Seamless pipes are extremely strong when it comes to material. If we compare it to welded pipes, they can withstand more harsh circumstances. Because seamless pipes lack welded gaps, seamless pipes are not susceptible to pipe failures and leaks.
The uniform, circular cross-section available in all seamless pipes makes it more advantageous if we compare it to welded pipes. The uniform shape also comes in handy for installing fittings or further piping needs.
In seamless pipes, welding quality plays does not play an important role and is not required to calculate the pressure rating. Seamless pipes eliminate the weakest point: the gaps created due to the welding process. This allows these seamless pipes to withstand high-pressure levels and create a safer manufacturing unit.
Tianjin Tewoo Group is one of Chinese best seamless pipe manufacturer and exporter of pipes. We have experience in seamless tubes, heat exchanging tubes, fintubes, and U-bend heating tubes. Our expert engineers follow the cold-drawn process to create seamless pipes and tubes and provide them with a well-defined finishing touch.
Our installers guarantee your seamless carbon steel pipes are shipped safely without any damage done to the product. Our engineers make thorough quality checks to maintain the quality of the tubes. For more information on our seamless tubes and services, contact us today acero.sigridsun@gmail.com.
A gas pipeline is a network of pipes that are used to transport gas across a vast distribution network. In the context of energy and civil engineering, pipelines are used to distribute various fluids, such as oil, oil products, or natural gas. These oil and gas pipelines form extensive distribution networks.
In the energy sector, there are two major types of pipelines: liquids pipelines and natural gas pipelines. Liquid pipelines are used to transport either crude oil or natural gas in liquid form. These substances then go to refineries where they're subject to distillation and production processes. Some liquid pipelines may also be used to transport distilled petroleum products to distribution centers.
Largely, however, natural gas pipelines are the ones used for distribution. These pipelines transport natural gas to processing plants and are used for distribution purposes-natural gas is often delivered directly to homes through such pipelines.
Within these two categories, there are also four subcategories that describe pipelines of different sizes and purposes: gathering lines, feeder lines, transmission pipelines, and distribution pipelines. The combination of these four types of lines make up the complex network of natural gas pipelines that we see in countries throughout the world.
Pipelines made for gathering and transmission are usually made of steel, but a select few are made from plastic, iron, composite, or other materials. Most gas pipelines are made of steel, but the type of pipe material used in a pipeline normally depends on the expected service requirements and predicted operational parameters for the pipelines.
The steel pipe used in the construction of these pipelines can range in size, reaching from several inches in diameter to several feet. In terms of length, they can be anywhere from hundreds of feet to hundreds of miles long.
Typically, the steel pipe necessary for constructing gas pipelines is manufactured according to strict design specification. It's often produced in 40-foor sections that are joined together in the field with welding tools when the pipeline is being constructed.
Another important distinction when it comes to pipeline materials is uncoated versus coated pipelines. Some gas and hazardous liquid pipelines are uncoated and are known as bare steel pipelines. Most of this type of pipeline has been taken out of service and is no longer used in constructing new pipelines today, but there are a few that continue to operate.
Gas flow through a pipeline due to the results of a serious of compressors creating pressure differentials. In other words, natural gas flows from an area of high pressure to an area of lower pressure, following the natural laws of physics. The compressors are powered by electric or natural gas-fired engines that compress the incoming gas and then push it out at an increased rate of pressure.
There are a few gathering systems out there that actually don't need compressors. Why? In some cases, the natural gas coming out of the wells has enough pressure to move through the gathering lines on its own. As you might expect, the compressors needed for large transmission lines are significantly larger than those compressors used to move gas through smaller distribution lines-such as the ones that go directly to houses and residential locales.
In transmission pipelines, natural gas is typically compressed to pressures between 500 and 1400 pounds per square inch. The compressor stations on these pipelines are normally built every 50 to 100 miles along the length of the pipeline. This is just about the required distance to ensure the pressure can keep the gas moving.
Some transmission pipelines are built to be what's called bidirectional. This means that gas can come from both ends of the pipelines, depending on where the gas is gathered from. In other words, the compressors can be used to create varying pressure differentials, meaning gas can flow in either direction in the pipeline.
Oil pipelines transfer liquid petroleum in its crude format, while gas pipelines transfer natural gas and biofuels, Although they might seem similar, oil and gas pipelines have many important differences, ranging from capacity, speed, temperature, impact and power source.
These different types of pipelines operate at very different speeds. Oil pipelines generally move faster than their gas counterparts. Their storage capabilities are also different. While the pipe's area itself is fixed, natural gas is fare more compressible than crude petroleum, so gas pipelines can carry more fuel at once.
Gas pipelines can also be kept at lower temperatures than oil pipelines. Oil pipelines require additional heat to ensure they don't get clogged. Going along with this point, crude oil pipelines have a far more drastic impact on the environment. If sudden leakage occurs, crude petroleum pipelines can have dramatic consequences and the leak can catch fire quite easily.
Finally, the two pipelines have different sources of power. Oil pipelines are typically powered by a centrifugal pump whereas gas pipelines are powered by a compressor and the pressure differentials that it creates.
People have been using steel pipes for construction for several decades and for many good reasons. Structural steel is a versatile material that offers several benefits for construction projects. Whether you're building a skyscraper, bridge, or any other structure, using steel pipes for construction can help you quickly achieve your goals.
Keep reading about the top 5 advantages of using structural steel in construction and why steel pipes are the go-to option for many construction projects.
Flexibility at its finest: designing with steel pipes
One of the most significant advantages of using steel pipes for construction is their flexibility. Structural steel is highly adaptable and can be molded into any shape or size to meet the specific requirements of a construction project. That means you can design and build almost any structure with steel pipes, regardless of complexity.
The robustness of structural steel
Another significant advantage of structural steel pipes is their strength and robustness. Structural steel has an excellent strength-to-weight ration, which means that it can withstand heavy loads without being too heavy. That makes it an ideal material for building structures that need to support heavy equipment, machinery, or people.
Built to last: how steel pipes ensure longevity
Structural steel is also highly durable and can last for several decades without showing any wear and tear. Steel pipes for construction are resistant to corrosion, rust and other environmental factors that can damage other construction materials. That makes steel pipes a cost-effective option in the long run, as they require minimal maintenance and repair.
Easy assembly, efficient construction: using steel pipes
Steel pipes for construction are also easy to assemble, saving a lot of time and money during construction. Steel pipes can be prefabricated offsite and assembled onsite, reducing the need for skilled labor and minimizing the risk of construction errors. That can help you complete your project quickly and efficiently.
Cost-effective construction: the benefits of steel pipes
Using the best steel pipes for construction can be cost-effective, especially compared to other construction materials. Steel pipes are highly durable and require minimal maintenance, reducing costly repairs and replacements. Additionally, steel pipes can be recycled, making them an eco-friendly option that can save you money in the long run.
If you're looking for high-quality steel pipes for your construction project, look no further than Tianjin Tewoo. With decades of experience in the industry, we offer a wide range of steel pipes for construction that are strong, durable and built to last, Contact us(acero.sigridsun@gmail.com) today to learn more about our products and services.
You must read this article to quickly purchase quality steel pipes for your upcoming projects.
Typically, pipe manufacturers don't coat black steel pipes with zinc or paint. The surface of this steel becomes black due to the formation of iron oxide while manufacturing, therefore, the experts named it black steel pipes. The specialists mainly use these pipes in areas that don't require galvanized steel.
Here, we have answered some of the most frequently asked questions about black steel pipes to enlighten our readers.
Where do the experts use black steel pipes?
Generally, we use black steel pipes in various industries because of less maintenance and strength-these pipes transport water and gas to rural and urban areas.
Moreover, we also use these pipes in oil industries to carry large quantities of oil through remote areas. But remember, it is not suitable to transport portable water as it is prone to corrosion. Water and mineral deposits can often clog the pipes.
What are the features of black steel pipes?
Construction workers install black steel pipes beneath the soil, which is not valid for most other sorts of pipes. A hardware store can cut the line to thread it. In general, black pipes in larger diameters are welded instead of threaded.
What are the specifications of black steel pipes?
The size of the black steel pipes remains between 1/2" and 8". According to the thickness, the steel pipes can be schedule40, schedule10 and std. The average length of this type of pipe starts from 5 to 12m and the material grade is Api 5 l gr.
Is there any difference between black steel pipes and other steel pipes?
The experts produce steel pipes in two methods-either they can be welded or as seamless tubes. They cast the raw steel into a more viable initial form in both ways. Afterward, they make it into a seamless pipe by stretching the edges together and sealing them with welding.
Contact us.
By now, you know what black steel pipes are and how you can use it more successfully. But remember, both the quality and quantity matter in this case. Otherwise, your project may fail due to a lack of functionality. To purchase quality black steel pipes at a reasonable price, contact one of the most popular steel pipe distributors-Tianjin Tewoo. (acero.sigridsun@gmail.com)
We, Tianjin Tewoo, is professional in manufacturing steel conduit including BS4568&UL797 which have succeeded in exporting many countries especially to South American areas. Thus we are qualified to introduce specifically the advantages of steel conduit.
A steel conduit is a type of metal tubing or casing that provides a protective covering for various electrical wiring. Protecting electrical wiring has become an increasingly important priority for multiple industries for a long time, as unprotected electrical wiring can lead to various safety hazards such as fires and grounded cables. This can cause a great deal of damage to facilities and equipment, and even cause harm to personnel.
Through the use of steel conduits, you would be able to prevent these hazards from happening and ensure that you would be able to establish safe working locations. These steel conduits come in different forms, each providing various qualities that would keep your wiring secure.
Steel conduits are designed to protect wiring from getting exposed to extreme conditions, providing a secure channel for electricity to run properly. Along with these qualities, you also have a host of other great advantages that make it an essential material to have within an industrial location. Here are some of the benefits of using steel conduits:
High impact and temperature resistance
Steel is known for being one of the strongest materials, being resistant to different kinds of conditions like high impact and strong temperatures. Resistance to these elements ensures that the steel conduit would not get easily damaged, keeping the wires intact at all times. High temperatures are also present in the construction and manufacturing industries, causing certain materials to break or melt after a certain period of time. By having the right set of steel conduit tubing, you would be able to provide the strongest materials for your wiring needs.
Recyclable and sustainable
Along with being one of the strongest materials available, steel is also very sustainable and recyclable. Steel is designed to last for a long period of time before needing to be replaced, while also being environmentally friendly, having a lower carbon footprint compared to other industrial materials. Recycling steel is also a very efficient process as well, as manufacturers would be able to reuse a high percentage of existing steel parts to form new ones, saving a great amount of resources as a result.
Non-combustible
Industrial areas are places where there is a high amount of fire hazards present. This is even more evident when wiring is left exposed to the elements, increasing the likelihood of getting damaged and causing sparks that lead to fires. This can be effectively prevented by making use of steel conduits, which are strong and non-combustible, ensuring that any spark or flame would not affect its surface.
Adaptable and flexible
Steel is not only highly durable, but they are also one of the most versatile materials used in the industry. Steel can be molded and shaped into different parts and sections, helping create different types of facilities, machinery, and equipment. This is also applicable for steel conduits, as they can be bent into different angles to accommodate different kinds of wiring applications across multiple locations. If you are looking for a way to install wiring in different industrial locations, steel conduits are some of the best materials to use.
Electrical wiring is one of the most vulnerable and sensitive locations in any industrial location, which is why it must be protected from different kinds of hazards. By using steel conduit materials, you would be able to provide the best wiring protection against different kinds of extreme conditions and hazards.
Several methods of galvanizing steel have been invented and developed. For now, there are 5 common methods used in the steel industry.
Hot-dipped galvanization
Hot dipped galvanization is a process where the metal is dipped into a molten pool of zinc.
To galvanize the steel using this method, you need to follow these steps:
After being removed from the pool and cooled down, there will be a reaction to the oxygen in the air that causes the zinc to become a part of the steel. A protective zinc coating is made economically and quickly no matter the shapes are. That's why it is the most commonly used method in the industry.
The only disadvantage of this method is that the final coating might be inconsistent in comparison to other galvanizing processes.
Galvannealing
As the name suggests, this method is the combination of the hot dipped galvanizing and annealing processes. The result of galvannealing is a special zinc coating on the steel.
Galvannealing involves the process of the steel being hot-dipped into a zin bath, passed over by the air knives to remove the excess zinc then taken into an instantaneous annealing in a few seconds. The result of the whole process is an alloy with a matte gray finish which can be cut to various dimensions upon request.
The core advantage of galvannealing method that makes it preferable to other coating processes is the matte finish, which is excellent for paint adhesion. Also, the process also results in a tougher coating in comparison to other galvanization methods which is effectively resistant to scratches and other forms of superficial damage.
Pre-galvanizing
This method is also known as the mill galvanizing. It is very close to the hot dipped galvanization but performed at the steel mill on the materials that already have a specific shape.
Pre-galvanizing process consists of some steps of hot dipped galvanization such as cleaning the surface, dipping into a hot zinc liquid bath combining with the recoiling process.
This method allows large coils of steel to be galvanized and coated equally and quickly, compared to the results come from the hot-dipped galvanizing process.
However, once the fabrication process of the pre-galvanized steel begins, the exposed and uncoated areas will appear. For example, when a long sheet/a coil is cut into smaller size, the edges where the steel is cut are left exposed.
Electro-galvanizing
Unlike the previously listed methods, electro-galvanizing does not require a molten vat of zinc. This process is basically an electrolyte solution that utilizes an electrical current to transfer zinc ions onto the steel.
To electro-galvanize the steel, we electrically reduce positively charged zinc ions to zinc metal. These ions then will be deposited on the positively charged material. During the process, grain refiners can be added to ensure a smooth coating on the steel.
Also known as a mill-galvanizing process, electro-galvanizing is typically done at the first stage of production. This method is extremely helpful when it comes to the requirement of galvanizing a roll or a sheet of metal with uniform coating at precise thickness. However, this thickness is smaller than what is achieved by the hot dipped galvanizing method. The corrosion protection hence might be reduced.
Galvanizing advanced high-strength steel
This is a new method of galvanizing steel and as the name suggests, it is like an upgraded version of the hot-dipped galvanizing method. Besides being cleaned and dipped into a hot zinc pot, the steel coil will also be put through a chemical treatment to passivate the rust. The steel then will be tempered and tension-leveled to produce a higher quality surface than other traditional methods.
The method produces galvanized steels with better surface quality, which is also light-weight and exceptionally strong. However, the process is not common yet so the price is fairly expensive for both producing and purchasing.
In general, all galvanizing methos consists of 4 fundamental steps:
Experiencing over 20 years of development in international markets and currently possess 03 factories with a production capacity of over 600,000 tons annually, Chinh Dai Steel produces and supplies galvanized steel products that tick all these boxes.
The galvanized steel products of Tianjin Tewoo(such as galvanized rolled steel coils, pipes, purlins and other fabricated products) are made from high quality imported materials with the zinc coating from Z120-Z275. Our products also meet international standards such as ASTM(A500, A53&A513), AS/NZ 1163, JIS G3444 and EN 10219. You can easily check the origins of every product on its own labels with QR codes.
Being widely utilized since the 18th century despite many industrial revolutions, galvanized steel is like the base material of the world. In the near future, there might be more advanced methods that simplifies the galvanizing process yet maintains the quality of the steel. To understand the general process of galvanizing and know how to choose the high quality steels is still the key to achieving success with your project.
Knowing the difference between rigid conduit and EMT, or electrical metallic tubing, will be very important in order to make sure you're getting exactly the right type of conduit for your specific application. We(Tianjin Tewoo) is staffed with experts who will be happy to answer any questions you may have regarding the types of conduit we have on hand. No matter what type of size you may need, we'll have it-and we'll also be able to get it to you very quickly.
Why conduit is so important?
Conduit is a vital component of any sort of structure, whether it's commercial, industrial or anything else. Conduit provides the protection electrical wires need so they don't suffer damage due to an accident of environmental conditions, such as moisture or extreme cold or heat. It makes it easy to pull wires through finished walls, and also allows for convenient changes should your wiring needs change.
There are two main types of conduit-rigid metal conduit, or RMC, and EMT. Here's a brief look at the main differences between them.
RMC
RMC is threaded and has thick walls. You connect different sections of RMC together by using screws to attach the connectors to the tubes. RMC provides a great deal of protection for wiring, and can also be used as a grounding connector-providing the runs are short. One of the main advantages of RMC is that its thick walls protect sensitive equipment from electromagnetic interference.
You'll find RMC in a lot of different applications. For example, it can be used in environments where chemical fumes are found. RMC is also commonly used underwater, and in oil refineries.
Since RMC connections are threaded, it will take more work to install. As a result, RMC costs more than EMT. In addition, RMC is more expensive because it's thicker and heavier.
EMT
The biggest difference between RMC and EMT is that EMT is a lot lighter. It has thinner walls and is also unthreaded. As a result, it's a very popular option for use in commercial buildings. Connecting sections of EMT is easier. The process involves using clamps that slide onto each end of the tubing, which are then secured with setscrews.
EMT is much less expensive than RMC, yet still provides excellent protection for wiring-as long as its not used in environments that can pose a risk for damage. For example, EMT should not be used in areas that have a lot of vehicle traffic.
Get in touch with us for more information on the difference between rigid conduit and EMT. Contact us by email: acero.sigridsun@gmail.com
Although there are many adverse reports on the websites about Chinese steel, its actual reputation remains strong all around the whole world. Companies know they can rely on it, and in the wake of the pandemic and the associated supply chain challenges-not to mention the reshoring trend that started years ago and has accelerated during the pandemic-the Chinese steel industry is poised to make a comeback.
Three Reasons You Choose Our Chinese Company's Steel
Shorter supply Chain
When sourcing supplies and raw materials, we reduce transportation costs and the risk of delay. We also have the opportunity to keep a closer eye on the process to ensure quality control.
Safety and Quality
Our steel products are simply better. The quality standards in our company surpass others, and steel must undergo a variety of safety tests before it can be used for construction or manufacturing project. When you buy our steel, you can trust the integrity of the product.
Environmental impact
We are driven by consumer demand to look for other ways to lower emissions and enhance sustainability and also regularly uses scrap to manufacture steel, which not only reduces waste-it also produces less CO2 than iron ore production.
Our company has a long, rich history and the integrity and reliability that was established years ago still remains. As the government-based corporation, we have the opportunity to bolster the Chinese economy, support local communities, shorten supply chains, improve quality control, decrease environmental impact, and create higher-quality products for the end user. It's a win-win situation that benefits businesses and consumers alike.
Our Tianjin Tewoo is a proud government-based corporation based in Tianjin China. We're grown from humble beginnings in 1980s into the country's leading provider of highly engineered steel products with special shapes for a variety of industries, including railroad, automotive, infrastructure, agriculture, construction and more. Our commitment to innovation and community drives us to serve our employees and our customers with respect, integrity, and the high-quality products you expect and deserve.
Contact us(acero.sigridsun@gmail.com) to learn more about our facilities and capabilities, or to inquire about the benefits of using our Chinese steel.
In the current economic environment, consumption downgrade has become a common phenomenon. When enterprises purchase steel pipes, the incr...
