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Topics regarding the characteristics of galvanized steel pipe vs black steel pipe are frequently compared because these two are common materials in construction applications, piping systems, and various manufacturing fields. Although both are types of steel pipes, comparing their characteristics reveals significant differences.To begin, let's explore the key differences between galvanized steel pipe and black steel pipe? Which type of pipe is best suited for contractors in specific applications? Read the article now and answer these questions with AG真人游戏 Steel in the following lines!The characteristics of galvanized steel pipe vs black steel pipes differ significantlyDefinition and structural composition of galvanized steel pipe vs black steel pipeThe main distinction of galvanized steel pipe vs black steel pipe is its appearance, specifically the presence of a zinc coating. Galvanized steel pipes are essentially formed from carbon steel but the manufacturer applies an additional layer of zinc to enhance their resistance to corrosion and oxidation. Therefore, when used over a long period, the zinc layer acts as a sacrificial layer and will rust before the oxidizing agents reach the base steel layer.On the other hand, black steel pipes do not undergo the galvanizing process. They are identified by their characteristic dark or matte surface. This coloration is formed by a layer of black iron oxide, which results from the reaction between oxygen and iron during the production process. Although galvanized steel pipe and black steel pipe have significant differences in their external characteristics, they both share the same carbon steel core.Galvanized and black steel pipes have same steel core layer but differ in surface treatmentComparing the properties of galvanized steel pipe vs black steel pipeBased on the differences in their coatings, galvanized steel pipe and black steel pipe each have their own advantages and disadvantages in terms of corrosion resistance, strength, and durability. Furthermore, each type has its specific purposes and suitability for various industrial applications.Corrosion resistanceThe corrosion resistance of galvanized steel pipe is rated better than that of black steel pipe due to the zinc coating on the surface. Specifically, the galvanized coating acts as a sacrificial anode, interacting with H2O molecules to form zinc hydroxide, which helps prevent the contact of water and air, thereby protecting the steel from oxidation and corrosion.In contrast, the surface of black steel pipe is only covered with a layer of iron oxide as a result of the reaction between the iron in the steel and the air. This coating does not significantly prevent corrosive agents, and their structure is not durable and can be easily broken down when exposed to salt or acids.One way to protect black steel pipes from oxidation is to place them in dry environments or areas with stable climatic conditions with low levels of salt and acidity. Additionally, to enhance rust resistance, black steel pipes can be coated with paint or other protective layers after installation.Galvanized steel pipe has higher corrosion resistance through its zinc layerSteel strength and durabilityIn terms of steel strength, both types of steel originate from carbon steel, so they generally contain carbon content ranging from 0.25% to 0.55%, along with a few other alloys such as manganese, phosphorus, etc. This amount is sufficient to ensure a balance between hardness for good load-bearing capacity and flexibility in machining applications.Galvanized steel pipe and black steel pipe both have natural heat resistance and can withstand pressures up to 150 PSI, as both types of steel have melting points up to 1370 degrees Celsius. Therefore, under natural environmental conditions or in harsh environments, the temperature will never reach levels that could damage the steel structure, except in cases where machining processes generate temperatures exceeding their endurance limits.However, the thicker the coating, the better the steel product can withstand all weather conditions. Specifically, the zinc coating can extend the lifespan of steel pipes up to 50 years. When comparing durability, there is a significant disparity of galvanized steel pipe vs black steel pipe. Due to the lack of a protective coating, black steel pipes, although having good mechanical properties initially, tend to deteriorate and lose durability over time during use.Both steel types have good heat resistance with the melting point to 1370 degrees CelsiusFlexibility in machiningIn machining applications, workers often prefer black steel pipe vs galvanized steel pipe because this steel type does not have a zinc coating. Therefore, they can be easily cut, bent, and welded without worrying about damaging the protective layer. In contrast, galvanized steel pipe has a zinc coating, which can pose a risk of poisoning to the worker when machining, especially during welding.Additionally, black steel pipes are produced through a hot rolling and welding process, which creates a seam along the length of the pipe. During pipe connection operations, black steel pipes are easier to work with compared to galvanized steel pipes because the seam makes them extremely easy to install without the need for welding.Without zinc layer in surface, black steel pipe can be easily cut, bend and weldedApplications of galvanized vs black steel pipeFields such as construction, pipeline systems, and automotive manufacturing are the three most common application sectors for galvanized steel pipe and black steel pipe. However, within these fields, each type of steel demonstrates distinct and appropriate aspects!ConstructionThe robustness providing excellent load-bearing capacity and resistance to corrosion has made galvanized steel pipe and black steel pipe are crucial materials for construction projects. However, in outdoor structures of infrastructure like railings, fences, and scaffolding frames, contractors prefer galvanized steel pipe vs black steel pipe due to its ability to withstand weather impacts and ensure long-term durability.On the other hand, black steel, known for its strong load-bearing capacity and ease of fabrication and assembly, is often used for indoor structures where there is less direct exposure to weather, such as framework, temporary structures, or water piping systems. Currently, black steel pipes are more readily available on the market compared to galvanized steel pipes because their manufacturing process is typically simpler and less costly.Galvanized steel pipe is used for outdoor structures in construction projectsPiping systemsPiping systems are considered the most common application for galvanized steel pipe and black steel pipe. Particularly when considering water piping systems and other liquids such as oil pipelines, waste pipelines, chemical pipelines, etc., manufacturers prefer galvanized steel pipe vs black steel pipe due to its smooth zinc coating surface, which helps prevent the accumulation of mineral deposits that could clog water pipes.Although black steel pipes are more common, they are often not prioritized in applications for fluid piping systems because this type of steel lacks a protective coating. As a result, black steel pipes are susceptible to corrosion and rust when exposed to fluids. Instead, black steel pipes are used for propane or natural gas piping systems to residential and commercial buildings. Additionally, this steel type is also used in fire sprinkler systems because this type of steel has better heat resistance and fire resistance compared to galvanized steel pipes.Galvanized is applied for liquid piping systems while black steel pipe is common in natural gas piping systemsOther common applicationsBlack steel pipe and galvanized steel pipe both have numerous important applications in various industries beyond construction and piping systems. In the automotive industry, galvanized steel pipe can be used in exhaust systems of vehicles due to their corrosion resistance or for components exposed to external environments. Additionally, galvanized pipes are also prevalent in the energy sector, where they are used in support structures for solar panel arrays because of their ability to withstand harsh weather conditions.Black steel pipes, known for its ease of fabrication and high mechanical strength, are used in mechanical structures within the mechanical engineering industry. Moreover, they find application in manufacturing furniture frames and tables in the interior design sector. Their ease of fabrication supports easy bending and cutting operations, facilitating the creation of diverse designs with high durability.Galvanized steel pipes are used in the energy sector as supports for solar panelsGalvanized steel pipe vs black steel pipe: Which material costs more?Comparing the cost of galvanized steel pipe vs black steel pipe, generally, black steel pipes are cheaper because in the manufacturing process of this material, they do not undergo the galvanizing stage. The absence of a protective zinc coating reduces raw material costs, making this type of steel a more economical choice for applications that do not require high corrosion resistance.Black steel pipes will help optimize project costs better than galvanized steel pipesSave time and cost on galvanized and black steel pipe purchases with AG真人游戏 SteelIn summary, galvanized steel pipes are the perfect choice for applications requiring high durability and corrosion resistance, especially projects in harsh environmental conditions. On the other hand, black steel pipes are a sensible choice due to their combination of mechanical strength, durability, and cost-effectiveness. The selection between galvanized and black steel pipe will depend on the specific technical requirements of the project along with considerations of cost.Through this article, AG真人游戏 Steel aims to provide readers with a comparative perspective on the properties of galvanized steel pipe vs black steel pipe, thereby assisting in the selection of the most suitable material for their projects. If you are looking for high-quality galvanized or black steel pipes that meet all standards and have clear origins, please contact AG真人游戏 Steel via WhatsApp: +84 76 911 2358 or email: [email protected].

Black steel is a type of steel that plays an important role in many projects as well as applications related to life. So what is black steel pipe and its advantages to make it is used in so many projects like that, today let's learn about black steel pipe with AG真人游戏 Steel with the most detail in the article below!1. Definition about black steel pie and the important specificationsBlack steel pipe is a product created on the hot rolling process of black steel sheet material, it can be said that this pipe is a form of steel that has not been galvanized. Instead of going through a galvanizing process like many other steels, this steel just undergoes a chemical conversion to create a black or magnetic iron oxide layer. Therefore, the surface this steel is often dark blue and rough based on the dark iron oxide shell on its surface.Black steel pipe is produced based on certain standards and parameters, usually there are 2 standards most commonly applied today to evaluate black steel pipes including ASTM A53 and ASTM A106.Accordingly, the ASTM A53 standard will include the required metal components such as Carbon, Manganese, Phosphorus, Nickel, Chromium, Molybdenum and Vanadium in small proportions, the composition is mainly Iron. In which the sum of 5 elements Copper, Chromium, Molybdenum, Nickel and Vanadium must be less than 1%.ElementsPercentagesCMax 0.3%MnMax 1.2%PMax 0.5%SMax 0.045% ASTM A106 standard is a seamless black steel pipe, meaning that they will not have the joints as basic steel pipe and they are commonly used in high temperature environments. The composition of ASTM A106 type will be similar to that of standard A53, there are only minor differences as the total composition of this standard is now supplemented with Silicon.ElementsPercentagesCMax 0.35MnMax 1.06PMax 0.35SMax 0.0352. History of formation and manufacturing processes of black steel pipeMethods of producing pipe steel appeared as early as more than 200 years ago and they have been gradually researched and developed to this day. The origin of steel pipes appeared in the 1800s when a British inventor created a system of coal-fired lamps to light up the street, from which the need to use steel pipes has paid attention day by day.In the early stages in the 1820s, researchers at that time created metal pipes by using fire to soften the metal sheet and proceed to join the metal edges and weld them together with a hammer. However, this method was replaced by a more advanced method and it is considered the premise for today's method of forming steel pipes. Basically, the metal sheets will be heated until a certain ductility is reached, then the manufacturer will pull them through a conical groove. As the metal passes through the groove, the edges of the metal will gradually roll and contract to form a long, round tubular shape.2.1. Manufacturing processes of welded steel pipeNowadays, the production methods of black steel pipe have been gradually automated by equipment, so the completion time is greatly accelerated while ensuring the technical uniformity. Black steel pipe is divided into 2 common types, namely welded steel pipe and seamless pipe steel, specifically, the production process of welded pipe steel takes place as follows:Slitting line stage: The manufacturer will put hot rolled steel coils into the slitting machine to cut the steel sheets into small widths.Rolling: Then the slitting steel will be moved through the clusters and cages to flatten and chamfer on both sides, making the steel surface uniform in size.Shaping: Next is the shaping stage, the steel strip then goes through a series of grooved rollers arranged parallel to both sides, as the steel moves towards the end, their shape will gradually be rolled to form a cylindrical shape.Welding black steel pipes: This is the step that requires the most technical machines because the joint line will greatly determine the durability of the black steel pipe in the future. The steel pipe will pass through a roller arranged above to create extremely strong friction on the groove. At the same time, both the inside and outside of the pipe are also sprayed with hot zinc to avoid the risk of rusting the joints.Quality check: Once the steel pipes have been successfully shaped, they will now go through the cutting machines to complete the final stage. Black steel pipes go through modern gauges to compare technical information as required to ensure the stability and quality of the finished product before being put on the market.2.2. Manufacturing processes of seamless steel pipeIn contrast to welded steel pipe, seamless steel pipe is derived from a billet, which is then heated and cast to form a hollow section steel. Seamless steel pipe production processes began to appear in the late 19th century and it gradually replaced welded steel pipe because the manufacturing process usually took place quickly in a relatively short period of time. Therefore, during World War II, seamless black steel pipes completely took advantage of applying in life and making weaponry at that time.Currently, manufacturers usually apply one of two main manufacturing processes to create seamless steel pipe including the Mandrel Mill process and the Mannesmann Plug Mill process. Both processes serve different purposes as Mandrel Mill is used to produce small diameter steel tubes from 25 - 150mm. Whereas the Mannesmann Plug Mill process produces seamless steel tubes with large diameters from 150 to 400 mm.Mandrel Mill processThe process begins with a billet bar heated to 1300 degrees Celsius and then the manufacturer will use a long piercing to drill into the top of the billet bar to create a small hole and this gap is the starting point for radius expansion taking place afterwards. The piercing tool will rotate continuously into the center of the steel pipe and this rotation speed is enough to cause the steel core to gradually melt through its path.After the steel pipe is successfully penetrated, it will move to the mandrel mill installed on the pipe. The series of rolls here are arranged in the direction of 90 degrees to continuously roll the surface of the steel pipe to reduce the outside diameter and control the thickness. When leaving the furnace and meeting the standard outside diameter, the steel pipe will now undergo a cleaning step with high-pressure water descale to remove excess oxide deposits formed during heating. They are finally moved to the cutoff mechanism to be cut to the prescribed length, then they will be bundled and checked again before implementing shipment.Mannesmann plug mill processThe process begins with a billet that has just been heated from the furnace and then the manufacturer will use a Mannesmann drill with the head is designed in a conical shape and the size is almost equal to the diameter of the pipe. This drill will rotate continuously into the center of the steel pipe diameter to create a large enough hollow.During the steel hollow drilling process, on the production line, two rollers will be installed in the opposite direction of the steel to reduce the steel diameter thickness. In order to ensure the quality of the hollow inside, the manufacturer will use a cylindrical mandrel with a size close to the hollow diameter inside it to rotate, the purposing of this stage is control the roundness inside the pipe. Then, the steel pipe is put into the decontaminating stage and be cutted to the required length, finally the product will go through heat treatment and cooling.3. The characteristics and role of black steel pipe in the current contextA great advantage that black steel pipe brings to the project is its affordable price. Thanks to the quick and simple production process without too much technical technology, the market price of black steel pipe is always reasonable, the level price is always in the low range. Cheap input materials will help managers be more proactive in investing in other areas of the project, thereby helping the plan become stable and reduce the risk of capital shortage. Although the price is cheap, this does not affect the quality of the steel, specifically the black steel pipes have high homogeneity thanks to the production process on the same line, so the durability as well as the mechanical properties are not compromised and they obtain consistency from beginning stage to the end stage. In addition, black steel pipe will not shrink when exposed to high temperatures, the nature of black pipe steel is formed from billet with a temperature of up to 1500 degrees Celsius, so it can keep the original shape even after being heated.However, the black steel pipe is considered for environmental problems in its production process because the production requires the factory to burn fossil fuels and this leads to the large amount of smoke emitted into the atmosphere, polluting water and soil. In terms of long-term economic impacts, this steel pipe is still an ideal choice as the steel's durability has kept it existing for decades, this steel pipe is possible to become an optimal economical solution for the facility infrastructure as well as other manufacturing applications.Green steel production projects have been gradually popularized to many places of the world, green steel technology completely eliminates the use of fossil fuels from the process, helping the mills cut down on up to 90% the amount of carbon emissions. The importance of scrap steel is also being concerned by many manufacturers when it helps businesses save energy resources and be more proactive in finding input raw materials without having to invest in eloring natural mining sites.4. Applications of black steel pipe in the fieldsPossessing a variety of diameters from 12x12 mm to 100x100 mm and even up to 250x250mm, black steel pipe is now an important factor in the construction field and many industries.4.1. Pipeline systemOne of the most common applications of pipe steel is taking advantage of making water, vapor and natural gas pipelines. Black steel pipe possesses good bearing capacity without distorting, so it will be suitable as a conduit at high pressure places. In addition, these pipes also appear in oil and gas pipelines because they are manufactured according to standard specifications so they can adapt well to corrosion and high temperature environments. Various lengths and sizes of steel pipes have made it easier for businesses to install at the locations, specifically in the installation of water and gas pipelines in urban and rural areas. Moreover, black steel pipes usually require less frequent maintenance, so they can be installed underground, which helps to increase the urban beauty with less obstruction to the surrounding ground.4.2. Building structureIn construction, black steel pipe is used as the foundation of the building as well as appearing in load-bearing scaffolding. Steel pipe has a chemical composition including chromium, silicon to increase the strength and toughness of steel pipes, so it has the function of balancing and distributing the load evenly for the foundation with the scaffolding.Black steel pipe also appears in the ultrasonic pile system in the foundation structure of the building and it is the main raw material of pre-engineered steel buildings, the light weight of this pipe will help the construction process become more convenient and easier.5. The difference between black steel pipe compared to other steelsBesides black steel pipe, there are many other types of steel pipe that are the same size and shape as black  pipe, moreover, they are very popular in construction and industrial applications. Some typical steel pipe products placed on the balance sheet compared with black steel pipes can be mentioned as carbon steel pipes and galvanized steel pipes.5.1 Black steel pipe and carbon steel pipeBlack steel pipe and carbon steel pipe basically still have the basic thing in common, which is an iron alloy with added carbon to create strength. Both types have the similar advantage of being extremely sturdy and durable, so they are very popularly used in the fields of construction and manufacturing engineering. However, if you examine closely each type of steel, you will see that they have significant differences.Structural compositionIn terms of composition, the amount of carbon in steel is also divided into different abundance levels from 0.05% to 2%. Meanwhile, black steel pipe has regulations on the amount of carbon content not exceeding 0.35%. Although the black pipe has a much smaller amount of carbon, they contain elements that carbon steel pipe does not possess such as chromium, silicon and manganese, which are extremely valuable in resisting corrosion and maintaining durability for steel.Carbon steels are composed mainly of iron and carbon, they have the least chromium content compared to other steels. The element chromium gives effective corrosion resistance to steel, so the absence of chromium will make the steel very susceptible to oxidation and rust surfaces.Strength and enduranceEvaluation of strength criteria, black steel pipe is more durable and harder than carbon steel pipe because the black iron oxide coating helps increase the hardness of the material, has the effect of protecting the surface of the steel pipe and effectively resisting corrosion. Meanwhile, because carbon steel pipe does not have additional anti-corrosion elements, its durability will be worse than black pipe steel, even when the atmospheric humidity increases to 70%, it can also cause carbon steel to oxidize.Black steel pipes on the market today are not usually required to be galvanized because they are equipped with a protective layer against corrosion that is formed through the manufacturing process, while carbon steel will require the manufacturer to proceed galvanizing steps to ensure they do not corrode. Especially in gas transportation or plumbing applications, carbon steel is not an appropriate choice.Eco-friendly in manufacturingThe use of black pipes for construction and industrial applications is considered more eco-friendly than carbon steel pipes. The reason is that the emissions from the production of carbon steel pipes are more than the leaking smoke in the production of black steel pipe. The reason why is that the carbon component accounts for the largest proportion of carbon steel pipe while black steel pipe may not need or will exist very little carbon components. Therefore, many people predict that in the future, it is likely that this black steel will gradually replace carbon steel in many fields before the trend of green economic development globally.5.2 Black steel pipe and galvanized steel pipeBlack steel pipe and galvanized steel pipe are the two most widely used steels in the transportation of oil, gas, water and other liquids. Both are tubular steels and have the same application, but if you put them on the scale, you will see that these two steels are significantly different.Corrosion resistanceAlthough black steel pipe coated with iron oxide has a significant effect on oxidation resistance, this steel is not superior to galvanized steel pipe. Galvanized pipes are coated with a layer of zinc and zinc is one of the leading elements for effective anti-corrosion, in addition, the zinc layer also helps prevent steel from being scratched and helps the steel surface to be maintained in the best condition.Pipeline system applicationsThe thicker the zinc layer, the longer the life of the steel, but some studies on air pipeline systems have shown that this zinc coating can peel off and clog pipes, leading to damage for pipe. Therefore, although galvanized steel pipe is very popular in liquid transmission systems, it is not suitable for gas transmission systems.In contrast, black steel pipe is proven to be a good air transportation product as well as used for fire protection systems because black steel pipe can withstand higher temperatures than galvanized steel pipe. However, black steel pipe is not a good choice for use as a pipeline for compounds with high concentrations of corrosive because this compound will dissolve into black steel pipe and cause pipeline blockage.Production cost and priceBlack steel pipe and galvanized steel pipe have a clear difference in cost because in the production process, manufacturers have to perform additional galvanizing steps for steel, so the cost to sell to the market will be higher than that of black steel pipe. In addition, during time for implementing the construction or commercial buildings, galvanized steel pipes will never be connected to black steel pipes.6. Looking for a reputable black steel pipe supplier in VietnamThanks to its outstanding properties and affordable price, black steel pipe is always present in most construction projects as well as water and gas transmission systems. Choosing quality black steel pipe products directly sourced from large factories in Vietnam will bring a lot of sustainable value to your project.Currently, the price of black pipe steel is constantly changing because the Vietnamese steel market in particular and the global steel market are still in a difficult period. The price list of black pipe steel is not only constantly changed from manufacturers, but also from imported sources, which will make it difficult for many customers and especially importers, who want to buy black steel pipe in bulk.Understanding the needs and difficulties that customers are facing, AG真人游戏 Steel as an expert in providing steel solutions will help you get a reputable source of goods from large factories in Vietnam such as Hoa Phat, Hoa Sen,... Possessing many years of experience in the steel industry in Vietnam, we are currently establishing many relationships at large factories, so we ensure that the source of black steel pipe always meets quality standards with full C/O and C/Q certifications. The comprehensiveness of AG真人游戏 Steel is also proven through the team of experts with many years experience who always clearly and promptly grasp the changing policies in market prices, thereby being able to give the best advice for customers. If you need advice on a detailed list of black steel pipe sizes in the Vietnam market as well as a detailed price list for each size, please contact via Whatsapp:+84 76 911 2358 or via email [email protected].

The most important factor of a sustainable building is the source of quality construction steel. Depending on the property of each project, the contractor will choose some criterias to evaluate construction steel. Below is a list of common criteria for evaluating the quality of construction steel.Construction steel quality standardsThere are countless different types of steel on the market today, in order to create a common uniformity in the steel production process, quality standards have been issued. Manufacturing mills will often rely on these quality standards to adjust the specifications to ensure the quality of the steel grade is in the best condition.Three common quality standards including Vietnamese, American and Japanese standards are applied to steel constructions such as plain bar and rebar. In which, when the product meets Vietnamese standards, construction steel is considered as standard steel and is completely suitable for construction projects.TCVN - Vietnam steel standardVietnam confirms quality standards for steel grades is abbreviated in the form of TCVN, of which there are 4 general standards: TCVN 1651-1:2008, TCVN 1811_2009 (ISO 14284-1996), TCVN 6287_1997, TCVN 7937-1-2013.The plain bar steel used to make reinforced concrete and on each of them are marked CB240-T, CB300-T and CB400-T. Similar to plain bar steel, rebar steel also owns 3 standard steel grades including CB300-V, CB400-V, CB500-V, CB600-V. The numbers in the symbol will represent the strength of the steel. Specifically, the CB300-T series will indicate the value of strength is up to 300N/mm2, meaning that a steel bar with a cross section of 1mm2 will withstand a tensile force of up to 300N (equivalent to 30kg).ASTM - American steel standardThe American Standard is identified by its common abbreviation ASTM, will focus on key topics such as specifications, testing, and grading guidelines. The American standard applied in the current range of construction concrete steels is ASTM A615/A615M with 3 steel grades including GR40, GR60 and GR75.Most steel grades according to American standards are highly appreciated for their outstanding hardness when all 3 steel grades GR40, GR60 and GR75 possess tensile strengths of 420 MPa, 620MPa and 695MPa. Having the high tensile strength will be a plus point of this standard for building framing applications because they provide extremely good loading.JIS - Japanese steel standardThe Japanese standard is also one of the familiar standards in the steel industry with the abbreviation JIS. Currently, two popular Japanese standards are applied in construction steel including JIS G3505 - 1996, JIS G3112 - 1987.Construction steel specificationAnother important criterion in the selection of construction steel is the appropriate size including diameter, length and volume. Knowing the construction steel diameter will help the contractor easily calculate the required volume of construction steel for the project, especially for large projects that always require meticulousness and calculation in detail.If the contractor is not careful in choosing the right size, it is easy to make the structure weak because of unbalanced transmission forces in some loading parts. Famous construction steel suppliers in the Vietnam market such as Hoa Phat, Pomina, Viet Italy, ... are at risk of being faked as poor quality versions. Normally, the fake version of construction steel will have a smaller size from 0.5 - 0.8mm than the authentic one.Specification of steel standard TCVN 1651-2008Outside diameter桅6桅8D8D10D12D14D16D20D25D32D36D40D50Cross section(mm2)28.350.2750.277.8511315420131449180410181 2571 694Specific weight (kg/m)0.2220.3950.3950.6170.8881.211.582.473.856.317.999.8615.42Tolerance specific weight (%)卤8卤8卤8卤6卤6卤5卤5卤5卤4卤4卤4卤4卤4 Specification of steel standard JIS G3112 - 1987Outside diameterD10D13D16D19D22D25D29D32D35D38Cross section(mm2)71.33126.7198.6286.5387.1506.7642.4794.2956.61140Specific weight (kg/m)0.560.9951.5592.2493.0393.9785.0436.2347.5098.949Tolerance specific weight (%)卤6卤6卤5卤5卤5卤5卤4卤4卤4卤4 Specification of steel standard ASTM A615/ A615M-08Outside diameterD10D13D16D19D22D25D29D32D36Cross section(mm2)711291992843875106458191006Specific weight (kg/m)0.560.9941.5522.2353.0423.9735.066.4047.907Tolerance specific weight (%)卤6卤6卤6卤6卤6卤6卤6卤6卤6 Steel origin and the market priceThe standard steels must be the steel lines having clear origin, usually the manufacturer will attach labels showing characteristic symbols and brand names on each steel bundle.In addition, quality construction steels from reputable brands will always have a fixed price and the retail price will be listed from the manufacturer. If the price of steel is too low compared to the factory's selling price, it means that the quality of the steel will not be guaranteed.Quality construction steel must come from a reputable supplierBesides considering the quality criteria, choosing a reputable steel supplier is also an important factor to help get good construction steel. AG真人游戏 Steel as an expert in providing steel solutions for importers will be the ideal partner to accompany you in the process of searching and trading products.During many years of operations, AG真人游戏 Steel has made many close relationships with major domestic manufacturers. Therefore, we ensure that the supplied steel source fully meets the quality standards with CO/CQ certificates. In addition, AG真人游戏 Steel also owns a team of experienced staff specializing in updating steel price lists weekly, which will help importers have transparency about the price of products, thereby having the basic data to adjust the reasonable trading plan.If you are interested in learning about technical specifications as well as updating steel prices in Vietnam, please contact us via email: [email protected] or Whatsapp:+84 76 911 2358.

What is galvanized steel pipe used for? Let's explore these applications in agriculture, solar energy, oil industry, construction and more with AG真人游戏 Steel!Galvanized steel pipe has been coated with zinc to protect the steel from corrosion. GI is most commonly used for outdoor construction such as fencing, handrails and interior plumbing applications (plumbing, fire fighting systems,鈥�). AG真人游戏 Steel will dive deeper into the issue of 鈥渨hat is galvanized steel pipe used for鈥�.What is galvanized steel pipe used for? Explore now with AG真人游戏 SteelWhat is galvanized steel pipeGalvanized steel pipes are hollow, thin-walled steel structures with good load-bearing capacity and minimal impact from environmental factors. The addition of an external zinc coating further enhances their resistance to rust formation, oxidation and environmental influences such as climate, temperature, humidity,...Galvanized steel is divided into hot-dip galvanizing and electroplating with different characteristics and pros and cons:Hot dipped galvanized steel pipeHot-dip galvanizing is the traditional method of coating steel pipes with a protective layer. Surface-treated steel pipes are dipped into a tank of molten zinc. The zinc layer is evenly coated on both sides, with good rust resistance, adhesion and long life expectancy. GI's zinc coating is usually about 50 micrometers thick on average.Electrolytic galvanized steel pipeElectrolytic galvanizing, also known as cold galvanizing, only uses a very small amount of zinc, about 10-50g/m2 to coat the outer surface of various products. Electrolytic plating technology creates a precipitate on the metal layer, so the corrosion resistance is much worse than that of hot-dip galvanized steel. Products cold-plated have low cost, high adhesion, and low deformation at high temperatures.Galvanized steel pipes offer strength, rust resistance and versatility for construction needsGalvanized steel pipe classificationRound steel pipes: mainly used for water pipes, lamp posts, railings, stair handrails, ultrasonic piles,...Square and rectangular steel pipe: depending on the thickness of the steel pipe, it will be used as a roof frame, scaffolding or in the manufacture of furniture, motor vehicle parts, ...Oval steel pipe: this type of galvanized steel pipe is widely used in the field of furniture, frames鈥檚 car, motorcycles, bicycles,...What is galvanized steel pipe used for?Galvanized steel pipes have many outstanding features such as high aesthetics, comprehensive protection, good life expectancy, ... when applied to projects and fields of life.Applications in solar energySolar panels have a large mass of 20-24kg to ensure that the system is not affected by the effects of storms or high winds. Therefore, the support frame needs to be strong, capable of withstanding large loads and wind levels of 10, level 12 in stormy weather. In addition, the frames that support the solar system are placed outside and are often affected by the weather, so they must resist corrosion.In almost all materials, galvanized steel can meet all of the above requirements thanks to its stable, solid, high-strength, load-bearing and good-bearing structure. The zinc coating on the outside of the steel pipes has a comprehensive protection effect, increasing the long term use of the frame system. Therefore, galvanized steel, especially pipe steel, box steel, V-shaped steel,..., are often chosen as frames for solar power systems.Galvanized steel ensures durable and corrosion-resistant frames for solar power systemsApplication in agricultureGalvanized steel pipe has good rust resistance, variety of sizes, easy to shape and install, so it is widely used in irrigation systems.Black steel pipes, hot-dip galvanized steel pipes are also widely used in animal husbandry. Large steel pipes are used to make feed or waste pipes for livestock and poultry.In the fishery, fish farming cages are made from hot-dip galvanized steel pipes, replacing bamboo cages, overcoming limitations in rust resistance, life expectancy and cage breakage when there are large underground waves.Galvanized steel pipes offer versatility and durability for agricultureApplications in plumbingSteel pipes are widely utilized in water supply and drainage systems, high pressure plumbing installations or outdoor water supply networks. The nature of these projects all need large load capacity, easy to bend, shape according to the terrain, installation location, so galvanized steel pipe is the most appropriate option.In addition, square or rectangular galvanized steel pipes are also used for ventilation systems, assembling house frames, scaffolding, bearing trusses,...Galvanized steel pipes are ideal for water systems and structural applicationsApplications in telecommunicationsThe telecommunications system is the basic of social communication. Many telecommunications forms are utilized galvanized steel pipes to product public lighting, ultrasonic pile systems, broadcasting piles, telecommunications poles, phone wiring, equipment boxes,...Application in constructionThe application of galvanized steel pipes in the construction field must be mentioned as the key materials for housing and civil works such as rails, gutters, fences,... These steel pipes are shiny galvanized, aesthetics and durability, suitable for outdoor applications.Galvanized steel pipes are durable and aesthetic for housing and civil worksVietnam's galvanized steel pipe production technologyCurrently, Vietnam's galvanized steel pipes are produced by advanced hot-dip galvanizing lines, provided by the world's largest corporation specializing in metallurgical and steel rolling equipment such as Danieli, Tenova and G7 countries. The galvanized steel pipe product is strictly tested from the selection of raw materials, the production process to the completion of the final product. Therefore, Vietnamese steel pipe meets the import standards of many large markets such as the US, the EU, Canada, Australia,...Experience high-quality, competitively priced galvanized steel pipe with AG真人游戏 SteelThe global galvanized steel market was valued at USD 98.80 billion in 2023 and is projected to grow to USD 104.28 billion in 2024, eventually reaching USD 166.09 billion by 2032, with a compound annual growth rate (CAGR) of 5.9%鈥�.Vietnam has numerous advantages in exporting galvanized steel pipes, demonstrating strong competitiveness in the international market. Currently, Vietnam has become self-sufficient in raw materials, particularly hot-rolled coils (HRC), for producing galvanized steel pipes, enabling products to prove their origin and benefit from tariff incentives.High quality galvanized steel pipe products of Ton Hoa Sen, Hoa Phat, Ton Nam Kim,... are very popular and easy to buy in Vietnam market. However, steel importers can buy fake and poor quality goods due to limitations in connecting information with genuine manufacturers. Therefore, to save time and effort in purchasing, you should seek support from reputable, professional sourcing partners.AG真人游戏 Steel is a supplier of high quality Vietnamese steel import solutions for foreign partners. With a network connecting the largest steel enterprises in Vietnam and in-depth understanding of customs procedures, price policy, market fluctuations,..., AG真人游戏 Steel will advise and offer optimal purchasing strategies for customers.Hope this article has helped you answer the question "what is galvanized steel pipe used for?". For any exchange and detailed quotation about Vietnam galvanized steel pipe, please contact AG真人游戏 Steel via Email: [email protected] for 24/7 support.

Ton Dong A Corporation is one of the galvanized steel manufacturing brands with prestigious and market-leading output. Ton Dong A's products stretch from North to South, but not everyone knows about this business.AG真人游戏 Steel will help you learn more about Ton Dong A Corporation through the article below.Ton Dong A Corporation - The second largest galvanized steel mills in VietnamIntroducing Ton Dong A CorporationTon Dong A Corporation was established on November 5, 1998, with the name Dong A Company Limited; until 2004, it was changed to Ton Dong A Company Limited. In 2009, Ton Dong A changed from a limited liability company to a joint stock company to suit the development of the current economy. Ton Dong A is an enterprise specializing in the production of cold-rolled coil, galvanized steel coil, color coated steel,... serving the construction and civil industry. After more than 20 years of establishment and development, Ton Dong A Corporation is always committed to partners and consumers about product quality and service quality at competitive prices to meet market needs.With the motto "Quality - Prestige - Sustainable Development", Ton Dong A regularly researches domestic and foreign markets. Promote investment in technology lines to improve product quality and increase product diversity and richness. Thereby affirming the position of the Ton Dong A Corporation brand in the market, expanding export markets in Southeast Asia, and targeting further markets.Ton Dong A Corporation is considered a product with good quality, high aesthetics, and a variety of colors to meet all customer requirements. Currently, the company uses equipment and lines originating from the world's leading equipment manufacturing corporations, such as Danieli, Tenova, Kobelco,... Up to now, the company's products have been exported steadily, intending to enter the markets of demanding countries such as Europe, America, Australia, Japan,...Address: No. 5, Road No.5, Song Than 1 Industrial Park, Di An Ward, Di An City, Binh Duong Province, Viet NamTel: (+84 274) 373 2575Fax: (+84 274) 379 0420Email: [email protected]: tondonga.com.vnTon Dong A's products are invested in from quality to packagingMain products of Ton Dong A CorporationTon Dong A Corporation products are very popular in the market and are used in many different industries. Below, we invite you to learn about the main product lines of Ton Dong A Corporation.Color coated steelColored corrugated iron is known to be an indispensable item in construction and civil works. Besides being used for cold corrugated iron roofing, colored corrugated iron is also used to make advertising signs, interior decoration,... In addition to meeting product quality standards such as durable use, resistance to environmental factors also helps increase the aesthetics of the project.With the desire to bring Vietnamese brands to the world, Ton Dong A Corporation has launched the KING/WIN/SVIET product set. This is a set of products that brings national pride when featuring images associated with Vietnamese culture, such as Dragons, Stray birds, and S-shaped strips of land.Ton Dong A color-coated steel coil products have superior qualityGalvanized steel coilGalvanized steel coils, also known as galvanized steel, are produced from cold-rolled coils that are then plated with a layer of zinc. Galvanized steel coils are highly resistant to corrosion in the natural environment, so they are often used for roofing, partitions, and floor coverings. Galvanized steel coils from Dong A Ton Corporation are cheap, highly durable, and popular in the market. All products of Ton Dong A meet Japanese standards: JIS G3302, American standard ASTM A653, Australian standard AS 1397, European standard BS EN 10346. Ton Dong A has 2 main types: galvanized steel coils Z12 and Z27.Galvanized steel coil is the main product of Ton Dong AGalvanized steel pipe Normally, galvanized steel pipes are made from galvanized steel coils, so galvanized steel boxes have a shiny surface and are 4-5 times more durable than black steel pipes. Ton Dong A Corporation is currently producing galvanized steel pipes in 2 factories located in Long An province and Da Nang city. Ton Dong A's galvanized steel pipes are manufactured according to current popular standards and are exported to many demanding countries such as the US, Australia, Taiwan,...Galvanized steel pipe of Ton Dong A have high corrosion resistance Cold rolled coilCold-rolled steel is hot-rolled steel after being cooled to room temperature. With high durability, good bearing capacity, and impact resistance, Ton Dong A's cold-rolled steel coils are widely used in many different industries. At Ton Dong A Corporation, cold-rolled steel is regulated according to standards TCVN 6524: 1999, TCVN 6524: 2006.Ton Dong A's cold-rolled coils have good load-bearing and impact-resistant propertiesCompetitive advantage of Ton Dong A CorporationTon Dong A Corporation determines its competitive advantage is providing high-quality galvanized steel products with competitive prices and the best service. The company's products are the number one choice for all large and small projects. With diverse designs and many models, customers can freely choose. All products are produced on modern, closed production lines. The product not only has good bearing capacity but is also safe for users and environmentally friendly.Ton Dong A Corporation is a product of good quality, high durability, and extremely affordable price; the products all meet user standards. Compared to some other high-end corrugated iron lines, Dong A corrugated iron has a competitive price while still ensuring the best longevity and performance. Quality is always the top priority for businesses, as products rarely fade; roofing sheets that have been used for many years still look like new, bring aesthetic value, and can be reused.Quality and price are one of Ton Dong A's competitive advantagesAG真人游戏 Steel - Strategic partner of Ton Dong A CorporationCurrently, AG真人游戏 Steel is one of Ton Dong A's strategic partners. In 2023, AG真人游戏 Steel helped Ton Dong A Corporation export more than 27,000 tons of steel of all kinds. Among them, outstanding exports are to the Spanish and Belgian markets, with the main products being color soared steel, galvanized steel coil, galvanized steel pipe,...Currently, with AG真人游戏 Steel becoming a strategic partner of Ton Dong A, it is hoped that by 2024, AG真人游戏 Steel will help Ton Dong A export more diverse products to more potential markets.In the above article, AG真人游戏 Steel has compiled for you information about Ton Dong A Corporation. If you want to buy steel products from Ton Dong A, please contact us here.