Steel Pipe Exporter

Testing of steel strip for welded steel pipe No doubt that welded steel pipe like  ERW steel pipe , would be made by steel strip which gives more options for the diameter. However, we should figure out the importance of the steel pipe’s length and weight for welled steel pipe. The squeezing force of the welded steel pipe would be reduce due to the width of the strip is less than the allowable error, which will cause the unsteady of the welded places, showing cracks or open places; Otherwise, too big than the allowable error, the pressure on squeeze would be added to the welded place, which is also showing the beak, lap welding or burrs too. Therefore, the wavering of the width of the steel strip not only affects the accuracy of the outer diameter of the steel pipe, but also seriously affects the appearance quality of the steel pipe. We should have a test for the steel strip once we decide to use them to produce the steel pipes for water, oil or gas transportation.

Testing device for steel pipe An automatic hydrostatic testing device suitable for piping and casing is introduced to Sara recently by one of my friends who have worked in steel pipes industry for almost ten years. And as supplier of steel pipes, like  seamless steel pipe  now, I’ve figured out how important to have a test before the negotiation with customers. Generally speaking, thread gluing is a common failure of oil piping found during manufacture and operation. So how do we deal with this trouble? First of all, texting devices would be a nice option to guarantee the quality. For example, high precision instruments would be widely used for oil industry to measure the monomial parameters of taper, pitch and height screw for oil pipe, canola and drill shank. We would reduce the risk for various steel pipes after we have these basic testing. Of course, reparing would be another step too. As we all know that tube-lathe is mainly used as processing the petroleum pipelin...

Test Required for ASTM A53 steel pipe ASTM A53 standard have some basic requirements for seamless and welded steel pipes. 1. Hydrostatic Testing: test pressures for plain and threaded and coupled pipe are specified. Hydrostatic pressure shall be maintained for more than 5 seconds for all sizes of seamless and welded steel pipe.  2. Mechanical Tests:  ---Tensile Test: Two transverse tests required on the welded steel pipe for NPS 8 and larger, one across the weld and one opposite the weld.  ---Flattening Test: On welded steel pipe for NPS 2 and larger, STD and XS wall (not required for XXS pipe)  ---Bending Test (cold): For NPS 2 and under, XS wall and under; for NPS 1-1/4 and under, XXS wall  ---Number of Tests: Seamless and welded steel pipe – bending, flattening, tensile on one length of pipe from each lot of 500 lengths, or less, of each pipe size.  There are also more test needed, check  standard download  for more info....

Test Methods required for API 5L Line Pipe API 5L is the international standard of steel pipe for pipeline transportation system. As we know, this standard specification includes Grade B, X42, X46, X52, X56, X60, X65, X70, X80 etc. And divided in two product specification level, PSL1 and PSL2. More over, API 5L pipe is also the pipeline steel pipe, applied to the oil and gas transportation system. Meanwhile, other fluids like steam, water adopts the API 5L standard for the transmission purposes. Below we will introduce the methods for  API 5L line pipe .  1). Flattening test  The flattening test method is used to verify the deformation performance of line pipe to the specified size, and display its defects. According to the stress and deformation characteristics of the specimen during the flattening process, the flattening test shall show the resistance to longitudinal cracking and circumferential cracking of the pipe, and display its internal defects and surface...

Test Method of SMLS steel pipe Generally,seamless steel pipe may have defects are double skin, crack, fold, etc. When both end of the reserved resection margin is less, due to the functional  reasons of the detection facility, both ends of the head and sometimes the lack of effective testing, the end is most likely have cracks or other defects in the site. End there is a potential crack tendency, the installation of the weld heat affected may also be potential crack propagation. Thus, we should note that the detection of a certain region of the  seamless steel pipe , the detection of defective expansion of the pipe ends on time.  With austenitic seamless steel pipe should be noted that when the insulation is damaged or there may be rain infiltrated the site, penetrant testing, to detect stress, corrosion, cracking or pit problems.  Magnetic particle testing, penetrant testing can be easily found that the surface crack, fold, double skin, hairline, pinhole ...

Test Method of Seamless steel tube Generally,seamless steel pipe may have defects are double skin, crack, fold, etc. When both end of the reserved resection margin is less, due to the functional  reasons of the detection facility, both ends of the head and sometimes the lack of effective testing, the end is most likely have cracks or other defects in the site. End there is a potential crack tendency, the installation of the weld heat affected may also be potential crack propagation. Thus, it should be noted that the detection of a certain region of the seamless steel pipe, the timely detection of defective expansion of the pipe ends.  With austenitic seamless steel pipe should be noted that when the insulation is damaged or there may be rain infiltrated the site, penetrant testing, to detect stress, corrosion, cracking or pit problems.  Magnetic particle testing, penetrant testing can be easily found that the surface crack, fold, double skin, hairline, pinhole ...

Technical research for seamless steel pipe production process Technology provides us with advanced skill for products production. However, as manufacturer of seamless steel pipe in Tinjin Xin yue steel, there is no doubt that we would follow the main trend and to research the new methods for high quality, low cost steel pipes not only for  ERW steel pipe , LSAW steel pipe, but also the  seamless steel pipe  and SSAW steel pipe. First of all, boss told all manufacturers that we should get the basic theory and elements of the blooming melt of TSICO steel billet on-line measurement system. Thus, we can figure out the features of the steel billet measurement so that we can take control for the original material. What’s more, supplier of seamless steel pipe should familiar with the technical difficulty based on the introduction of the lossless detection on line method of the hot-rolled steel billet. Under this situation, suppliers can set down the corresponding counte...

Technical requirements for spiral tubes 1. Manufacturing method (1) The use of hot-rolled steel belt to do billet, often temperature spiral molding, spiral seam using automatic submerged arc welding, internal and external submerged arc welds are not less than one. (2) Steel pipe on the allowable to the head of the weld, steel and the end of the pipe end of the distance of not less than 300mm. The purchaser negotiates with the manufacturer to allow the head weld to be at the pipe end, but there should be a circumferential distance of at least 150 mm between the head and the corresponding tube end screw candle. (3) Docking pipe allows the same specifications and the same type of two short section of a steel pipe, each section of the length of short steel pipe shall not be less than 2m, both sides of the ring weld seam should be staggered, the ring distance Less than 150mm. 2. The type of steel The scope of the standard steel pipe should be used GB / T700-1988 in the Q195, ...

Technical characteristics of manufacturing dsaw pipe First, the steel pipe forming process, the steel plate deformation uniform, residual stress is small, the surface does not produce scratches. The machined steel pipe has greater flexibility in the size and thickness of the steel pipe, especially in the production of high-grade thick-walled steel pipes, especially large-diameter thick-walled pipes, which can meet the advantages of other processes Users in the steel specifications more requirements; Second, the use of pre-welding after welding (welding) of the process, in the best location to achieve welding, not prone to wrong side, welding and not welding and other defects, easy to control the quality of welding; Third, the overall mechanical expansion, can effectively improve the dimensional accuracy of steel pipe and improve the distribution of stress in the steel pipe, so as to avoid damage caused by stress corrosion, while the site is conducive to welding construction; ...

Surface treatment for SSAW For most of steel pipe, we need to add some coating to avoid steel rust. Below are the most popular surface treatment for SSAW. For water transmission pipe: 1. Fusion Bond Epoxy Coating, also called for FBE. 2. 2PE 3. 3PE/3LPE 4. Cement mortar lining 5. Polyamide epoxy 6. Coal Tar Bitumen 7. Hot Dipped Galvanized 8. Polyurethane, etc. For Line pipe: 1. Anti-rust coating 2. Coal Tar Bitumen coating 3. Fusion Bond Epoxy Coating 4. 3PE/3LPE 5. Polyurethane, etc. For Piling Pipe: 1. Bitumen coating 2. Fusion Bond Epoxy Coating 3. 2PE/3PE 4. Polyamide epoxy 5. Rich Zinc Primer 6. Polyurethane, etc.

Supply-side reform marketing trends in Chinese steel market From what we can tell from steel pipe price and marketing, steel pipe industry production capacity and amount of consumption are tend to be stable or lower, steel related products demand lacks price elasticity, price for steel pipes are flexible. A huge excess capacity and is relatively dispersed, under those factors, supply-side reform is needed in Chinese market.   Among them, the external factors include the imperfect market competition order, the specific performance of the demand decrease, the lack of effective policies and the lack of enforcement. Internal factors include excess production capacity , fragmentation of manufacturers and weak indigenous innovation.

Strong as steel support by spiral welded pipe Lots of department in countries of transportation would build new, high-rise bridge to relieve traffic pressure. And thus the bridge's service life would be important for engineers' project. So materials choosing has a necessary role during the building and spiral welded pipe would be a nice option for engineers nowadays. Buried under the waters of every bridge is spiral welded pipe. Why spiral-welded steel pipe? As it is most often used in water delivery for the bride due to its less cost than other steel pipes like  seamless steel pipe , but with high quality on water delivery. In addition, it also excels as drilled shaft casing pipe used in the formation of cast-in-place concrete piles. Spiral welded pipe did a really good job getting product out the door on a tight schedule, making sure everything was staged and ready to go when we needed it. With the strong steel support, the quality of the bridge would be here for custo...

Stress and deformation of erw pipe In the erw pipe production process, as long as the welding, erw pipe surface will have stress and deformation, but to varying degrees nothing more.  ERW pipe  in the welding process produced by the welding stress and a variety of deformation, often make the quality of welded products decline, and even cause cracks. Welding deformation caused by weld size, shape changes, such changes beyond a certain value may not be connected with other pipe or not enough machining allowance can not be cut. Below we say under the stress and deformation. The first is the surface stress of the erw pipe, when the material can not produce displacement under the external force, its geometry and size will change, this deformation is called strain. When the material is deformed, its internal produces the same size but the opposite direction of the reaction force against external force, the distribution of internal force at a point of concentration is called s...

Strength character in welded steel pipe Whether viaduct, trestle, or scaffold, strength of these products should be guaranteed when they applied in various functions in our daily life and engineering project. So why should we choose the welded steel pipes like  ERW steel pipe ? We should discuss this from the strength character in welded steel pipes. We can take wood pipe, plastic pipe and welded steel pipe for comparison. For example, if we need some pipes for scaffold or buried pipelines. Which one you would like to choose? Answer is welded steel pipe would be first one choice! Due to its original material, such as steel, carbon, silicon, manganese, sulfur, phosphorus and so on, this gives steel pipes special resist internal and external pressure even with light weight pipe. We should know that minimum yield strength of most pipe-grade steel is 42,000 psi(290 MPa). Higher strength steels are available. Of course, for wood or plastic pipe, they may not can handle a man’s ...

Streetlight pillar made by steel pipe Streetlight has become the essential product for customers nowadays as it would provide us various convenience when we go out at night. The components of the streetlight, excepting the lamp, we should take notice for the pillar too. Which kind of materials is better for the pillar making? Wood pillar? Steel pipe like  ERW steel pipe  pillar? Plastic pipe pillar? Actually, I still remember that it would be a wooden pillar under the streetlight to keep the night bright. And there are lots of trouble with the wooden pillar. For example, it would rot with time goes one by rain and sunshine even the ant. Of course, it is cheap at that time. With time goes by, we have changed the pillar for street lamp. For example, steel pipes would become one of the options. As it would not damaged quickly by rain or sunshine, of course not the ant too. At the same time, it could save lots of time and labor sources for replacement and maintain. To s...

Straightening method of dsaw pipe Straightening method of dsaw pipe: One, dsaw pipe bends in the same direction Cause: weld normalizing is insufficient, and the tube has thermal stress on the weld side, thus bending in one direction after cooling. The solution: 1,adjust the middle roller, appropriately increase the deflection curve; 2, twice straightening; 3, in the time can not be directly straightened, the overall tempering of the pipe. Two. dsaw pipe is unrule bending Reason: 1. The pressure between the three rollers is inconsistent; 2. Straightening roller wear larger. The solution: Check the adjustment of the straightening roller is loose, with the sample rod straighten the length of the contact line between the three. Third, dsaw pipe is shorter length Reason: the difference between the three roller straightening roller angle; straightening pressure larger. The solution: adjust the roll angle, as far as possible consistent; proper adjustment of straightening ...

Straight seam steel pipe material is how to determine? Material for the straight seam steel pipe, it should belong to the current frequency of use of the most extensive one of the steel products in the construction, equipment production and other aspects and has a wide range of applications! With the continuous improvement of market technology, Longitudinal Welded Pipe production process is also being improved. However, the straight seam steel pipe material in the course of which has a more important use of instructions, straight seam steel pipe in terms of compression, or extension, and so there is a gap between the seamless pipe! Straight seam steel pipe material to Q235B, Q345B, Q345C mostly, Huan Yin customers to choose to order. I plant production and management diameter 57 ~ 1620mm, wall thickness of 2 ~ 60mm straight seam steel pipe, galvanized straight seam steel pipe, thermal expansion of straight seam steel pipe, large diameter straight seam steel pipe. Commonly used mater...

Steel pipes would be our support in our daily life Holding on the steel pipe on the bus in the morning when I took a bus for office, I wondered that how convenient when we have car. Of course, thanks to steel products, like  ERW steel pipe , seamless steel pipe, we can enjoy this happy life. As we all know that steel has been used widely everywhere with the advanced technology. Agriculture industry: Whether you choose  LSAW steel pipes  for water transportation or diesel engine, there is no doubt we have connection with steel. Solar: The pillar supporting the solar engine would be made by galvanized steel pipe is necessary. Of course, we can see steel in here has played an important role in converting solar energy into hot water too. Traffic industry: Whether cars or railways, there is shadow for steel as well as steel pipes around them. Wind: How could we forget steel when we talk about onshore and offshore wind turbines as it is main original material appli...

Steel pipe is indispensable in current days We have to admit that we cannot leave steel products, such as  seamless steel pipes , steel bar and other products made by steel. With the development of advanced technology, we figure out the importance of steel. It is time for us to get into the world of steel now! Where we can hear the voice of steel? Steel industry would like to publish relative data about steel’s production, customers’ demand and trade all around the world. Steel industry will present the steel’s sustainability characters with some introduction every year for the global level. Steel companies would like to write articles to show clients the recent quality and quantities about the steel products. Steel enterprises would try to get the API certification every year for a high quality product. Why we choose steel? Simply speaking, it would give you the guarantee to make the best material choice no mater what you want to do with it. Its performance and ...

Steel pipe for water system Water pipes are tubes carry pressurized fresh water to buildings. The erosion resistant property of steel pipes and tubes makes a favorite for water system. Steel pipes are capable of handling high velocity and turbulence without effected the wall thickness. It is well known that steel is one of the leading materials in the modern industry and for many years it has been the favored material for water pipes. Such a large application of steel water pipes and tubes are stipulated by their optimal excellent properties: high values of strength and fracture stability in combination with the reasonably good ductility and flexibility, tensile strength, elongation and reduction in area. Properties of steel water pipes: Stainless steel water pipes sustain longtime exploitation such as friction and corrosion as well as aging. Even after years of use, these pipes don’t practically change characteristics such as hardness and brittleness. Steel water tubes instal...

Steel pipe and offshore construction Nowadays, we are looking for new energy. Oil and gas are two main energy resources for us. We are develop a grate scale of getting energy from the bottom of the oceans. Thus, offshore construction become more and more common everywhere. Steel pipe plays an important role is off shore construction.  Tianjin Xinyue Steel Group can provide a wide range of products for offshore construction.From drilling pipe, to welded steel pipe or seamless steel pipe for transportation for oil and gas, and scaffolding and other pipes for offshore plate construction. We provide product expertise, technical advice and broad knowledge about steel pipes, ranging from API, ASTM, ASME to EN and other standard.  Offshore oil and gas industry are mainly active in: Subsea constructions Offshore constructions Subsea pipelines Oil and gas transportation Check our  project list  for more info. 

Steel billet applied in seamless steel pipe We would like to use steel billet dropped by our parents for toys in our childhood. Sara gets know that this kind of product would be used in  seamless steel pipe  production. Who is this boy? Let’s have a look at it. Lots of books have discussed the oxidation resistant coatings applied to steel billet at high temperature. Why should the steel billet need the high temperature dealing? This relates to products process which includes the hot pressing pressure, hot pressing temperature and pressing time. These elements are the result of the integrated action of the slab state (wood raw material, adhesive, moisture content, etc.) and hot pressing elements. Under this situation, if the effective descaling is carried out, it is very important to control the feeding speed of steel billet, the flow rate of water and the pressure of water. Thus suppliers would guarantee the high quality seamless steel pipe for clients during the whole ...

Steel Beams’ Role in Civil Construction As a steel supplier for more than 30 years,Tianjin Xinyue Steel Group has witnessed a tremendous growth in the use of steel beams in construction. Steel have plenty more advantages over traditional wood beams, including faster installation, eco-friendly composition, and a safer role is construction. Considering how steel manufacturer can produce beams to fit precise specifications, they can be adapted to nearly any type of frame. In addition to the general frame of a civil construction, steel beams make an exception choice for ceiling beams. At the same time, steel can support heavier loads than wood, giving builders the opportunity to use fewer beams in roof construction. Although steel prices are typically higher than the cost of wood, the material may provide a better return on your investment. For one, since steel beams allow for faster construction, you can save more money on contractor services. Long-term savings are also a benefit...

SSAW steel pipes in Tianjin Xinyue Steel SSAW steel pipe, known as the submerged-arc welded helical pipe, is widely used in our daily life as well as engineering project. Tianjin Xinyue Steel Group produces seamless steel pipe, welded pipe like ERW steel pipe,  SSAW steel pipe  and  LSAW steel pipe  which are used in various places nowadays. With large standard scope from API 5L, API 5CT, ASTM A252, ASTM 53, EN10217, EN10219, BS, JIS, IS, suppliers can basically meet the demand of clients, including square steel pipes, nickel alloys and more. All production would be meet customers’ exact size and certificate demands and is available for ship worldwide from a number of locations. With steel pipe’s out diameter from 219.1 mm to 2540mm (8"-100") and wall thickness from 3.2mm to 25.4mm, we can see that there is no much problem for customers once you need the exact products as we can customized it for you. See website of xysteelpipe for overview information. Plea...

SSAW steel pipe can be found everywhere Spiral welded pipe, made from cold formed or hot rolled coil in a single and continuous process, is widely used in our daily life when we pay attention to it. Clients would know where to find the spiral welded pipe and with the development of technology, there is no doubt that more and more places can use it. Foundation is a nice place to find the  spiral welded pipe . If you have built castles in the air, your work need not be lost; that is where they should be. Now put the foundations under them. So does for the spiral welded pipe. They are the basic foundation for each house when we build them, and there is very clear that high quality spiral welded pipe can supply us long life service for our water supply and other transportation supply. At the same time, chimney & ventilation ducts need spiral welded pipe too. Chimney, as we all know its function, has the similar function with ventilation ducts. Under this situation, basic v...

SSAW pipeline Xinyue SSAW steel pipe production base was founded in 2003, located near Tianjin Port. Factory has equipment with 6 spiral submerged arc-welded steel pipe production line, with a team of 450 workers, hundreds of engineers and technician. Our annual production capacity can reach 450,000 tons. Each production line has introduced advanced Lincoln welder from USA and installed full set of online testing equipment, including X-ray industrial TV, ultrasonic testing, hydrostatic pressure testing and other testing facilities. We can provide SSAW steel pipe from diameter 219.1mm to 3048mm, wall thickness from 5mm to 25.4mm, length of single joint extend to 96m and the highest level of production up to X80.

SSAW Line pipe introduction SSAW can used for line pipe. With outer diameter from 219.1mm to 3048mm, wall thickness from 5mm to 25.4mm. Most popular standard and steel grade for  SSAW  are: API 5L: Gr.B, X42,X46,X52,X56,X60,X65,X70,X80 ASTM A53:Gr.A,Gr.B,Gr.C,Gr.D Ends: plain ends, bevel ends Surface treatment: anti-rust coating, coal tar bitumen coating, fusion bond epoxy coating, 3PE, Polyurethane, etc. Test: chemical composition analysis, mechanical properties(Ultimate Tensile strength, yield strength, elongation),flattening test, bending test, impact test, hydrostatic test, X-ray test, UT test, visual insoection, dimension checking and etc. So you can see that our inspection system is perfect. And any third party is welcome here in our factory. In addition, currently, our pipe length can reach 96 meter. So we can meet your requirement for within range.

Spiral welded steel pipe is made of the low-carbon carbon structural steel or low alloy steel strip according to the angle of the spiral line (called the forming angle) rolled into the tube, pipe and then welded together made, it can narrowstrip the production of large diameter steel pipe.Spiral welded pipe for oil and gas pipelines, its specifications OD * wall thickness. Spiral welded side welding and double-sided welding, the pipe should ensure that the hydrostatic test, the weld tensile strength and cold bending performance to meet the requirements. Spiral welded steel pipe in China is mainly used in water engineering, petrochemical industry, chemical industry, power industry, agricultural irrigation, urban construction. The transport of liquids: water supply, drainage. Gas transportation: gas, steam, liquefied petroleum gas. For the structure: for pipe piling for bridges; docks, roads, building structure, pipe, etc.

Spiral steel pipe In the water pipeline often choose to use spiral steel pipe, to know the spiral steel pipe are basically using molten iron casting, in the sewer network used more, but the spiral steel pipe with a seamless steel pipe is still very different, then the spiral pipe The use of the process, and how to check the quality of spiral steel pipe, first of all the spiral pipe mold management, molds need good maintenance and maintenance, can not bring obvious defects, or will greatly affect the surface quality of the pipe, followed by Production capacity, there must be a large enough to store the storage of spiral steel pipe, the use of materials to ensure that clean and stable, some manufacturers too much recycling raw materials to reduce costs, to know the spiral pipe processing materials, once there is a lack of, will inevitably lead to Spiral steel pipe construction quality greatly reduced, so the inspection of the spiral steel pipe, the need to control the quality of pip...

Spiral pipe cleaning method Cleaning method of spiral steel pipe. Cleaning: the application of solvents, emulsions to clean the appearance of steel to reach the removal of oil, grease, dust, smoothing agent and similar organic matter, but it can not remove the appearance of steel rust, oxide, welding, etc., and thus in the production of anti-corrosion As a covert trick. Something rust: the first use of wire brush and other things on the steel surface grinding, you can remove the loose or tilt of the oxide, rust, welding slag and so on. Hand tools to reach the Sa2 level, the power of rust can reach the Sa3 level, if the steel surface attached to the solid iron oxide skin, rust-free results do not think about, not up to the requirements of anti-corrosion construction of the depth of the anchor. Pickling: General use of chemical and electrolytic two ways to do pickling treatment, pipeline corrosion only chemical pickling, you can remove the oxide, rust, the old coating, and sometimes...

Double submerged arc welded spiral steel pipe with its high pressure capacity, small resistance, low temperature resistance, corrosion resistance, easy installation and maintenance, etc., is more and more oil and gas, slurry transportation, urban construction and other industries welcome. Spiral double welding pipe process: I. double submerged arc welding process, the plate deformation uniformly small, residual stress, surface does not produce scratches. Processing of pipe diameter and wall thickness of the pipe sizes range, greater flexibility, especially in the production of high-grade steel thick-walled steel pipe, large diameter thick wall pipe has the incomparable advantage of other technology, to meet the users in pipe size requirements; Ⅱ. Presoldering outside welding (the fine welding) the process can be implemented in the best position welding, less prone to the wrong side of the welding partial and incomplete penetration defects such as welding quality, easy to control...

Space available for different pipe repairing It is no doubt that we need to repair our pipes of water or gas transportation sometimes. However, do you know the space available for different pipe’s repairing? Like the  ERW steel pipe  from manufacturer? This is really very important before your repairing. There are some examples for your reference if you just need to repair. If you are repairing a pipe, and it is under 2 inch nominal dimension. Under this situation, taking pressure of the pipe into consideration, you do not need more than 300 psi pressure, and style 65 or style 90 may be your best choice. In addition, if you are repairing a gas line or oil line, due to the high pressure for transportation of oil and gas, editor thinks that style 90 universal coupling is very popular to repair gas lines. Of course, there are for steel pipes, if you are repairing a PVC or PE pipe or any combination of steel and PVC/PE pipe, style 90 universal coupling has a lock ring to pr...

Solutions under current marketing situation Under current marketing situation, what can we do to solve problems? There is a trend called Overcapacity reduction Plus Transformation and upgrading. It includes: The transformation of idea, the transformation of production model, the transformation of method.  First, we can build our company as a demonstration enterprise.  Second, we should take full advantage of the internet, change production organization model and business model. The third one is called technique marketing. We should both make sure of our steel pipe products’ quality, and we should also provide professional technique consultant.  Then comes the foster of Tianjin Xinyue Steel Pipe’s Brand. Afterwords is the management of our inner company’s system.  Finally is to build a environmental friendly steel pipe manufacturer with best quality.  If we can achieve above points, then no matter how the market changes, we can be the best ch...

Solutions for anti corrosion steel pipe 　　Damage is certain for various steel pipes in use. What we need to do is how to keep its service life longer than before. With improvement of technology, galvanized steel pipe, like zinc galvanized  seamless steel pipe , zinc galvanized ERW steel pipe, would be one of the ways to decrease this damage for steel pipes. 　　In order to improve the corrosion resistance of various steel pipes, galvanized steel pipe would be common for every enterprise. Which original would be chosen? Gold one would be cool, however, it is too expensive. So with comprehensive consideration, zinc galvanized steel pipes would be one of main method for steel pipes. Of course, for oxygen tube, generally speaking, small diameter welding pipe with specifications by 3/8 inch - 2 inch eight would be one options. Meanwhile, some aluminized galvanized pipes would be used by clients for corrosion protection too. 　　Galvanized material would take an important role in co...

SMLS steel pipe corrosion types There are two main types of pipe corrosion, one is uniform corrosion, which means that the whole pipe rusted in some certain degree. The other type is called localized corrosion, it means that maybe the pipe body is not rust yet, but maybe in some point, where there are some acid liquid or other factors that caused corrosion to this point, so on this point, the pipe is rust.  Because if the pipe is rusted either for the whole pipe body, or rusted in some point, it may cause pipeline corrosion perforation.Steel corrosion process in the soil is mainly electro chemical dissolution process due to the formation of corrosion cell. By corrosion of the battery anode and cathode area the size of space, but also the form of thick-walled seamless pipe corrosion is divided into micro-and macro-cell corrosion cell corrosion of two categories. In summary,  seamless pipe  buried in the soil being the major electro chemical corrosion, the rusted p...

SMLS casing Both seamless steel pipe and ERW can be used for casing. We’ll have a general clue about SMLS casing today. We’ll talk about out diameter, length,regular standard and steel grade, surface treatment and ends for SMLS casing. Length cover R2&R3: R2:7.62 meter to 10.36 meter.    R3: 10.36 meter to 14.63 meter. OD: 114.3mm to 508mm Surface treatment: varnished surface or black surface. Ends: Plain ends, BTC/BC/BT&C,STC,LTC etc. Standard: API 5CT PSL1/PSL2 Steel Grade: T95,P110,N80,K55,J55,H40 etc.  Abstract from Xinyue Steel