Why does rectangular steel pipe become so popular today

In the current steel pipe market, hollow section tubes make a hit in a variety of applications. Especially, when it comes to construction projects, hollow section tubes are used in many building types from small storage units to skyscrapers in big cities. For example, they are used to create the foundation of large buildings as well as other framework.

Torsional strength makes rectangular steel pipe an excellent choice for bear resistant and consistent. Rectangular steel pipe is fire resistant and does not warp, twist, split, swell or shrink. It resists dry rot and mildew, termites and carpenter ants. For increased fire resistance, the exterior of the product may be sprayed with a fire retardant material. The interior can be filled with concrete. Rectangular steel pipe can be readily bent, formed, punched, and drilled. And improved methods to fasten Rectangular steel pipe to other materials are making its use simpler and fabrication faster.

In applications, rectangular steel pipe has many benefits: aesthetic appeal, high strength-to-weight ratios, uniform strength, cost effectiveness and recyclability. Hot dipped galvanized steel pipe has been considered popular a lot among many users today. For one thing, the galvanization process protects the steel from rusting damage that can occur during transportation, installation and service. The zinc layer on the surface of pipe can form a barrier protection for steel products to extend the service life in applications. For the other thing, this layer is also resistant to wear and scratch, which makes the steel look more attractive. With the layer of protection, pipes can be used in outdoor areas, and can withstand the harm from some of the environmental effects.

Cold rolled steel pipe has an improved surface finish and tighter tolerances when compared to hot rolled steel pipe in the market. It is commonly used for parts requiring cold forming, such as crimping, swaging or bending. It can also be used for shafts, machinery parts, bolts, pinions, gears, as well as in the creation of furniture, appliances and other consumer goods. Furthermore, this type of rectangular steel pipe is sometimes preferred for architectural aesthetics in exposed structures in construction field due to its flat square surfaces. ASTM A500 is the most common steel specification for hollow structural section in the current steel pipe market around the world. This specification is for cold formed welded and seamless carbon steel tubing in round, square and rectangular shapes. ASTM A501 is another standard for hot formed steel tubing.

How to distinguish steel pipes in the market professionally

Are you still confused about how to distinguish steel pipes in the market so that you will make a good choice for your desired products finally? DongPengBoDa Steel Pipe Group, a professional steel pipe manufacturer in China would like to give you the possible answers as follows.

1. Material Classification
Generally, steel pipe can be divided into: carbon pipe and alloy pipe, stainless steel tubes. Carbon tube can be divided into ordinary carbon steel and quality carbon structural tube. Alloy tube can be divided into: low-alloy tubes, alloy pipes, high alloy pipes, high-strength pipe. Bearing tube, stainless acid-resistant pipe, precision alloys (such as Kovar alloy) pipe and high temperature alloy pipe.
2. Production Methods
Steel pipe according to production methods can be divided into two major categories: seamless and welded steel pipe. Seamless steel pipe according to production methods can be divided into: hot-rolled seamless tube, cold drawn tubes, precision steel tube, thermal expansion tubes, pipes and cold extrusion spinning tubes. Seamless steel pipe with high-quality carbon steel or alloy steel, hot-rolled, cold-rolled (pull) of the points.      Welded steel pipe is rolled into a tube-shaped plate to the seam or spiral seam welded, in the manufacturing method, divided into low pressure liquid delivery welded steel pipe, spiral seam welded steel pipe, direct volume welded steel pipe, welded pipe. Seamless steel pipe can be used for a variety of liquids, gas pipelines. Welded pipe can be used for water pipes, gas pipes, heating pipes and so on.
3. Feature classification by plating coating
Characteristics of steel coated by coating the surface can be divided into two major categories: clarinet (not plated coating) and coating the coating tube, as such black steel pipe and galvanized steel pipe in the current market. Hot dipped galvanized steel pipe has been considered popular a lot among many users today. For one thing, the galvanization process protects the steel from rusting damage that can occur during transportation, installation and service. The zinc layer on the surface of pipe can form a barrier protection for steel products to extend the service life in applications. For the other thing, this layer is also resistant to wear and scratch, which makes the steel look more attractive. On the other hand, possession of the outer coating pipe coating, inner coating tubes, coated inside and outside the tube. Coatings are commonly used plastic, epoxy, coal tar epoxy, and various types of anti-corrosion coating of glass material.
4. Shape classification by cross-section
In the current steel pipe market, hollow section tubes have extremely diverse variety of specifications, performance requirements. All of these should be as user requirements or changes in working conditions to be distinguished. Typically, the cross-section shape steel products according to production method, pipe materials, connection methods, plated coating characteristics and the specific applications. Variable cross-section (or tapered) pipe is the pipe length direction along the cross-section shape, inside and outside diameter and wall thickness and other periodic or aperiodic changes in the occurrence of the pipe. The main are: outer conical tube, conical tube inside and outside ladder pipe, ladder within tube, cycle cross-section of pipe, corrugated pipe, spiral pipe, steel pipe with a heat sink and the barrel with a double-track and so on.

Tianjin steel pipe challenges in 2019

Tianjin steel pipe has the complete steel market in the steel industry, which greatly meets the application needs of different customers. In the meanwhile, taking into account the different application requirements, Tianjin steel tube manufacturers always try to carry out the standardized production, and provide customized specifications of the products always. How to look at Tianjin steel pipe challenges in 2019?

Galvanized steel pipes have long been used as one of the most used building materials around the world. For decades, designers, builders and consumers seeking long-term structural performance in the harshest of outdoor applications have turned to zinc-coated steel pipes. Zinc-coated galvanized steel pipes can resist the attack of wind, water and road salts. It may be used in residential water supply lines, but not gas lines because natural gas causes the zinc to flake off and clog the system. However, it's not frequently used for water supply lines because the minerals in the water react with the galvanizing material and form scale, which builds up over time and will eventually clog the pipe. Galvanized pipe was commonly used for water supply lines many years ago, but over time many have filled with scale, which is why some older homes suffer from low water pressure. Hard water greatly reduces the life of steel pipe. In addition, galvanizing alloy layer mainly depends on the thickness of the silicon content of the steel chemical composition, the rough degree of the size of the cross-sectional area of the steel surface, the temperature of the zinc pot, the zinc immersion time, the cooling speed, and the cold deformation. In that regard, Tianjin China hollow section manufacturers should try to meet customers’ various needs as per the specific pipe specifications.

In recent years, galvanized steel pipe is confronting increasingly fierce competition in the steel pipe market. It is high time for steel pipe manufactures to act immediately so as to increase their competitive power in 2019. It is believed that only with high quality products, can steel pipe manufacturers gain the wider space to have further advancement in future. Furthermore, it is important for pipe enterprises to pay much attention to the continuous improvement of the whole strength so as to form their own feature brand. As all insiders know, hot dipped galvanized steel pipe is a special type of pipe due to its relatively complex processing in the steel market. For the same one specification of pipe, there exist certain difference between the international standards and the domestic standards. In that regard, it is strongly suggested that tube manufacturers should try to provide qualified products, in order to leave customers a good impression.

Why are hollow section tubes so popular today

China hollow section tubes are very popular today, which have been part of our society in the modern times. Compared to other traditional construction materials, hollow section tubes are stronger because they are further enhanced by steel reinforcing process. The increase in the standard strength is greater than the total strength of other competing highly strong materials.

In practical applications, round steel pipe and square steel pipe are often seen as one of important building materials in the construction trade. When it comes to construction projects, steel tubes are used in many building types from small storage units to skyscrapers in big cities. For example, they are used to create the foundation of large buildings as well as other framework. Today, China hollow section tubes also 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. 

Hot dipped galvanized steel pipe has been considered popular a lot among many users today. For one thing, the galvanization process protects the steel from rusting damage that can occur during transportation, installation and service. The zinc layer on the surface of pipe can form a barrier protection for steel products to extend the service life in applications. For the other thing, this layer is also resistant to wear and scratch, which makes the steel look more attractive. In the current steel pipe market, hot dipped galvanized steel pipes have been widely used as one kind of building materials in the frame scaffolding for many years due to its strength and stability in use.

Rectangular steel pipe is one popular hollow section tubes in the current steel pipe market. Torsional strength makes rectangular steel pipe an excellent choice for bearing resistant and consistent. Rectangular steel pipe is fire resistant and does not warp, twist, split, swell or shrink. It resists dry rot and mildew, termites and carpenter ants. For increased fire resistance, the exterior of the product may be sprayed with a fire retardant material. In addition, rectangular steel pipe can be readily bent, formed, punched, and drilled. New and improved methods to fasten rectangular steel pipe to itself or to other materials are making its use simpler and fabrication faster.

How to look at Tianjin steel pipe's popularity in the steel pipe market

In recent years, despite the overall slowdown, it requires much more improvement in the level of technology in the steel market. It is obvious that in present steel pipe market, a variety of kinds of steel pipe are widely used as structural steel pipes in construction applications. Nevertheless, there appears an excess of low- end products but a lack of high-end products. Under the current circumstances, China hollow section manufacturers are trying to determine their own market positioning, namely high-end level, or personalized level, or superior level in order to prevent homogenization, and successfully deal with the excess capacity through innovation in future.

With the quite mature development of pipe industry chains, Tianjin steel pipe has gained the prosperity in the domestic steel market for a long time. For the one thing, Tianjin pipes have quite complete range of steel pipe specifications, widely used for a variety of practical applications both in production and life. For the other thing, Tianjin steel pipe features a mass of steel pipe manufacturers as the most competitive advantage in the country. In Tianjin, there are as many as hundreds of manufacturing enterprises, engaged in the supply of raw materials, processing equipment, steel pipe production, as well as various post-treatments for different pipes.

Tianjin steel pipe production has obvious advantages in many aspects. For a long time, because of its good transportation condition, and abundant human & energy resources, it to some degree, benefits a lot of domestic steel pipe manufacturers and pushes them to make these advantages to offer favorable steel pipe prices. In the recent years, Tianjin steel pipe has also made great progress, following the pace of development in the international market. Considering the existing foreign trade resources and numerous advantages of development, more and more Tianjin steel pipe manufacturers are committed to giving full play to their own advantages, in order to strive to seize more potential opportunities for development in the international market. For instance, hot dipped galvanized steel pipe accounts for a large proportion of sales in the international market in recent years. Considering the existing foreign trade resources and numerous advantages of development, more and more Tianjin steel pipe manufacturers are committed to giving full play to their own advantages, in order to strive to seize more potential opportunities for development in the international market. Nevertheless, facing a great demand in the steel market, the steel pipe manufacturers cannot blindly expand production, but ignore the actual application needs. Otherwise, that will cause unnecessary economic losses.

Tianjin round steel pipe used in construction projects

In the current steel pipe market, Tianjin round steel pipe has a great demand for many years, especially widely used as structural steel pipe in construction projects. By virtue of its high visibility in the domestic steel pipe market, Tianjin round steel pipe has a number of competitive advantages in the recent years.

When it comes to construction projects, steel tubes are used in many building types from small storage units to skyscrapers in big cities. For example, they are used to create the foundation of large buildings as well as other framework. Tianjin round steel pipe as one member of China hollow section tubes plays an active role in the steel pipe market. Every year, lots of customers from different countries come to Tianjin to seek for their desired steel pipes. Galvanized steel pipe generally has the rational cost effective in the market. Compared with other typical steel pipe coatings, such as specialized painting and powder coating, galvanization is much more labor-intensive, resulting in a higher initial cost for contractors. Besides, due to its durability and anti-corrosive properties, galvanized steel pipe can recycled and reused, which to some degree save a lot of money during the post maintenance work. Unlike other structural steel materials, galvanized steel is immediately ready for use when it is delivered. No additional preparation of the surface is required, no time-consuming inspections, additional painting or coatings are needed. Once the structure is assembled, contractors can immediately begin the next stage of construction without having to worry about the galvanized steel materials.

In the recent years, Tianjin round steel pipe production has obvious advantages in many aspects. For a long time, because of its good transportation condition, and abundant human & energy resources, it to some degree, benefits a lot of domestic steel pipe manufacturers and pushes them to make these advantages to offer favorable steel pipe prices. As a rule, how to price will be up to the overall costs, including raw material costs, labor costs, transportation costs, reasonable costs of steel industry and etc. Take galvanized steel pipe for an example, steel pipe suppliers tend to choose to low the pipe price by favorable transportation costs so as to reach the equal level of profits. Of course, it is also necessary to give prior consideration to basic production costs, profits as well as certain material consumption. Furthermore, that will be good to increase added value of products, particularly reflected in the matter of product pricing.

China hollow section tubes used in greenhouse frame applications

In comparison with the cost of a steel frame greenhouse, PVC frame is considered a very easy, quick, as well as inexpensive way to build a greenhouse. However, a PVC house just isn’t going to last a long time. You can reasonably expect to get several years of use out of it, but don’t hope for too much. Because the sun will take its toll (but you can delay that by using UV-resistant pipe and painting it), and the stresses of wind, snow and ice will eventually cause cracking and breaking. And of course, a flimsy PVC frame greenhouse isn’t going to take much of a snow load without collapsing. In the modern times, China hollow section tubes are widely used in greenhouse frame projects because of its cost effective, maintenance-free corrosion protection system that will be able to last for decades even in the harshest environments.

In general, steel, available in many forms for intended purposes other than greenhouse building, can be adapted to many shapes and sizes of greenhouses. Greenhouse frames can be constructed of several different types of materials. If you’re building a greenhouse, choosing which type of frame to use will be one of your first decisions. And it is obviously important for most users to select a proper type of pipe frame to supports the entire greenhouse structure. Galvanized steel pipe generally has the rational cost effective in the market. Unlike other structural steel materials, galvanized steel pipe is immediately ready for use when it is delivered. No additional preparation of the surface is required, no time-consuming inspections, additional painting or coatings are needed. Once the structure is assembled, contractors can immediately begin the next stage of construction without having to worry about the galvanized steel materials.

In recent years, cold rolled steel pipe is commonly used for steel frame in greenhouse project, which has an improved surface finish and tighter tolerances and cold rolled steel pipe is more precise dimensionally because the cold rolled steel pipe has already gone through the cooling process, which help it closer to the finished dimension while the hot rolled steel forms the finished product looser tolerances than the original material. In addition, compared with other typical steel pipe coatings, such as specialized painting and powder coating, galvanization is much more labor-intensive, resulting in a higher initial cost for contractors. Besides, due to its durability and anti-corrosive properties, hot dipped galvanized steel pipe can recycled and reused, which to some degree save a lot of money during the post maintenance work.

Tianjin hollow section tubes applications

Today, Tianjin rectangular hollow sections have also become very popular in many forms of construction and other structural & mechanical applications. Tianjin steel pipe have many uses such as structural applications involved in residential, commercial and industrial construction. Besides, as the flat square surfaces of rectangular steel pipe has the ability to ease construction, they are sometimes preferred for architectural aesthetics in exposed structures.

In general, hollow section tubes are available in a variety of sizes and grades in the market so that it can be used for a number of different structural uses and applications in the construction trade. Furthermore, hollow section tubes as an important building material used in the construction industry tend to serve a wide range of functions often, due to the good performances of durability, strength and resistance to harsh environment conditions. In the current steel pipe market, round steel pipe and square steel pipe are the popular building materials in construction. With steel, it's easy to expose the building's beauty in a design that will emphasize its grace, strength, transparency, and slenderness. The column-free clear spans and the use of colored steel pipe coatings bring out the natural lighting of the frame and its simple elegance.

In the modern times, Tianjin hollow section tubes are widely used in frame building as building structure and scaffolding tubes in construction projects. It is necessary that when frame scaffolding is in good condition and erected properly, it will provide a stable elevated work platform at virtually any height so that workers can easily and safely work anytime. Unlike other structural steel materials, galvanized steel pipe is immediately ready for use when it is delivered. No additional preparation of the surface is required, no time-consuming inspections, additional painting or coatings are needed. Once the structure is assembled, contractors can immediately begin the next stage of construction without having to worry about the galvanized steel materials. Testing and studies have revealed that the average life expectancy for galvanized steel used as a typical structure material is well beyond 50 years in a rural environment and 20-25 years or more in an extreme urban or coastal setting. In that regard, contractors can confidently use this product in project.

Tianjin rectangular hollow sections are widely used as structural steel pipes in more and more construction projects in the modern times because this type of steel pipe are high tensile property, flexible, designed and fabricated to any height and strength, are easy to install, possess structural reliability, easy to maintain and are corrosion resistant. Rectangular hollow sections are cold formed and welded from either hot rolled, cold rolled, pre-galvanized or stainless steel. ASTM A500 is the most common steel specification for hollow structural section in the current steel pipe market around the world.