SSAW Pipe

Project location：UAE Product：LSAW STEEL PIPE, ROUND BAR, UNP Usage：Construction Inquiry time：2023.1.20 Order time：2023.4.4 Shipping time：2023.5.20 Estimated arrival time：2023.6.30 This client is an regular UAE client who started cooperation with Xinyue from 2022. After receiving the first batch of orders, both client and the end user were full of praise for the quality and service of Xinyue. For every client, Xinyue always adhere to the “quality first, service only”, from the pre-production meeting of confirm all the technical details to the production report, inspection report, shipment report, providing the client quality and service for each order double guarantee, and win the trust of the client. Once the new order the client confirmed with the end user, the client could not wait to talk with Xinyue, the end user appointed this project pipeline equipment provided by Xinyue, this is a great recognition of the client and the end user for Xinyue. At present, the project has been succe...

Project location：UAE Product：LSAW STEEL PIPE, ROUND BAR, UNP Usage：Construction Inquiry time：2023.1.20 Order time：2023.4.4 Shipping time：2023.5.20 Estimated arrival time：2023.6.30 This client is an regular UAE client who started cooperation with Xinyue from 2022. After receiving the first batch of orders, both client and the end user were full of praise for the quality and service of Xinyue. For every client, Xinyue always adhere to the “quality first, service only”, from the pre-production meeting of confirm all the technical details to the production report, inspection report, shipment report, providing the client quality and service for each order double guarantee, and win the trust of the client. Once the new order the client confirmed with the end user, the client could not wait to talk with Xinyue, the end user appointed this project pipeline equipment provided by Xinyue, this is a great recognition of the client and the end user for Xinyue. At present, the project has been succe...

 Xinyue’s LSAW steel pipe is one of the most reliable and cost-effective solutions for various industrial applications. As a leading manufacturer of LSAW steel pipes in China, Xinyue Steel has a proven track record of delivering high-quality products to customers worldwide. In this article, we will introduce the benefits of Xinyue’s LSAW steel pipes and provide a guide for customers to buy our products. Firstly, Xinyue’s LSAW steel pipes are made of high-quality steel and are widely used in the oil and gas industry, chemical industry, and other industrial sectors. These pipes are known for their durability, strength, and resistance to corrosion, making them the ideal solution for demanding applications. Secondly, Xinyue’s LSAW steel pipes come in a variety of sizes and shapes to fit any industrial need. Our pipes are available in diameters ranging from 219.1mm to 1820mm, with thicknesses of up to 50mm. With a maximum length of up to 70 meters, our pipes can be customized to meet sp...

Project location：Greece Product：LSAW STEEL PIPE Standard and material：API 5L X70,PSL1 Specifications： 406.4*12.7*6000MM 711.2*17.48*12000MM 1219.2*16*6500MM 1422.4*17.48*12000MM Application：Offshore oil platform construction Inquiry time：2021.11.04 Order time：2022.03.16 Shipping time：2022.04.30 Arrival time：2022.05.30 This batch of steel pipes was ordered by our regular Greek customer. Both sides have had deep trust and tacit understanding mutually, based on the many years’ cooperation. This customer is a local senior EPC and has undertaken many large construction projects in Greece. Two years ago, we cooperated for an offshore oil platform construction project, with the famous oil company Motor Oil. At that time, our company helped the customer win the tender in one fell swoop. Xinyue also lived up to the customer’s expectations, and finally delivered the goods successfully within the specified time. The end customer highly praised the product quality, which also laid a good reputatio...

 Straightening is an important process in the production of LSAW steel pipes. Especially for oil casing and oil and gas pipes of API standard with high quality requirements, special pipes for machinery and equipment.These kinds of steel pipes not only have strict requirements on the steel grade and weld quality, but also have high requirements on the straightness of the steel pipes.Because the deviation of straightness is directly related to the processing and connection of the pipe end thread and pipe hoop of the oil casing and conveying pipe, as well as the distortion and deformation during the use of the pipeline. There are two processing forms of pipe end threading - pipe rotation and tool rotation. Most of the threading processing adopts the method of pipe rotation, which requires higher straightness of the steel pipe. Affected by the internal stress of the steel pipe, the thermal influence of the welding seam, the eccentricity during forming, the tightening pressure, and the ...

Project Location: Australia Product: LSAW steel pipe Specification: DN500 Standard & Grade: EN10219 S355JR Usage: Jetty piling construction Received the inquiry in Oct 2021. Signed the contract on May 2022 Estimated Shipping time: June, 2022 In last Oct, Xinyue received a new enquiry of LSAW steel pipes with Epoxy painting from our regular client for a small jetty piling construction to Australia. The enquiry is very complex, one OD pipe but with several different length and in total quantity only several piles & less than 50tons, also required heavy thickness Epoxy painting. After several months of bidding, design changes and price updates, the project finally made good progress in this February. The end user had verbally awarded the project to our client, but it still needs about several weeks to confirm the specific technical terms and contract details. Due to the chaos of global shipping in recent years, the congestion situation of various ports is very serious. As a result...

Project location：Australia Product：LSAW Steel Pipe Standard and material：EN10219 S355JR Specifications：DN500 Usage：Marine Piling Construction Inquiry time：2021.10 Order time：2022.5 Shipping time：2022.7 Estimated arrival time：2022.8 In last Oct，Xinyue received a new enquiry of LSAW steel pipes with Epoxy painting from our regular client for a small jetty piling construction to Australia. The enquiry is very complex, one OD pipe but with several different length and in total quantity only several piles & less than 50tons, also required heavy thickness Epoxy painting. After several months of bidding, design changes and price updates, the project finally made good progress in this February. However, the production time left for us is very tight due to the early technical &commercial confirmation took too long time. In order to help customers catch up with the construction time by the end of August, Xinyue production and technical department launched a quick pre-production meeting, ...

 　　1. Construction preparation before use of LSAW steel pipe 　　Pipe trenches must be dug, pipe wells must be built, all kinds of straight seam steel pipes must be in place, and all kinds of tools needed, including welding machines, cutting machines, electric hammers, polishing machines, etc., must be fully prepared . Only after doing a series of preparations can the installation begin. 　　2. Installation of LSAW steel pipe 　　According to the design of the drawing, the pipe support is prefabricated according to the site conditions, and then the material is cut according to the design and site, and then the groove is polished with a polishing machine, and then welded. 　　Three, use quality requirements 　　1. The deviation of the vertical installation standpipe should be less than 3 mm per meter, and the deviation of the horizontal installation should be less than 1 mm. 　　2. The branch pipe shall not be welded at the welding seam, and there shall be no welding seam at the bend. . 　　3. Th...

　　Cold expansion of straight seam steel pipe has the following purposes: 　　(1) Improve LSAW steel pipe and pipe end the geometric dimensional accuracy, so that the diameter of the steel tube and pipe end, roundness, and the diameter of the pipe ends Poor meet the standard requirements, facilitate field welding construction. 　　(2) Reduce inhomogeneous deformation of LSAW steel pipe forming and welding process, to reduce the residual stress of forming and welding of tube, and improve its distribution, improve the overall mechanical properties of the steel pipe. 　　(3) Steel Pipe overall performance of a comprehensive and effective inspection. 　　(4) Cold expansion also improve LSAW the tube straightness role, especially for the smaller diameter LSAW pipe straight is more obvious. 　　Straight seam submerged arc welded pipe cold flaring, steel tube and pipe end diameter will increase by about one percent difference in diameter of the diameter, roundness, and the pipe ends are great...

　　 LSAW steel pipe manufacturing process is simple, its production efficiency is high and at low cost, the development of straight seam welded pipe is rapid. Therefore, the straight welding is mostly used in smaller diameter of steel pipe. Today, as an excellent steel pipe manufacturer, Prime Steel Pipe will share the LSAW steel pipe manufacturing process in details for all of you. 　　LSAW steel pipe Manufacturing process: 　　1.Plate Analyzing：After the steel plate used to manufacture large diameter LSAW steel pipe entering into the production line, steel pipe manufacturer should carry out ultrasonic testing to the whole plate; 　　2.Edge Milling: Through the milling machine to carry out double-sided milling on both sides of the steel plate, to make it achieve the required plate width, board parallelism and groove shape; 　　3.Edge Crimping: Using the pre-bending machine to preliminary rolling, so that the board has the required curvature; 　　4.Molding: In the JCO forming machine A...

　　Longitudinal Submerged Arc Welded Pipe or simply LSAW steel pipe and Straight Seam Submerged Arc Welded Pipe or simply SSAW steel pipe belong to submerged-arc welding (SAW). But LSAW steel pipe adopts single steel sheet as raw material, its advantages include: the thickness of the steel plate can reach more than 100mm, and there is no crescent bends; since it is straight seam, forming is more convenient, but also it is easy to weld tracking, which is suitable for two-step pre-precision welding production; and there is the whole body of mechanical expansion process, which can basically eliminate the residual stress. All of advantages above make LSAW can be produced big diameter steel pipe (the maximum can reach 1422mm), high-grade pipe (50mm), high steel grade (X80/X100/X120), and large structure tube that used in two, three, four types of regional and marine engineering. LSAW steel pipe and high-frequency Longitudinal Welded Pipe (HFW steel pipe) all belong to Longitudinal Welded Pi...

　　Press LSAW steel pipe and spiral welded pipe is divided into Longitudinal. Longitudinal simple consumer technology, consumption and high efficiency, low interest rates, to carry out fast. The strength of spiral steel pipe common than straight seam high, can narrow the larger diameter structural steel pipe billet consumption, but also the width of the blank with the same consumption of different diameter pipe. But with the same length of straight seam pipe compared to the weld length of 30 to 100% and the consumption rate is low. Thus, the smaller diameter pipe actually use straight seam steel pipe, large diameter spiral welded pipe is mostly used. 　　Welded steel pipe issteel or steel plate with a bending round, square and other shape and then welded into the surface of the pipe joints. Welded steel consumption process is simple. Types of specifications, equipment, less capital, but the average strength of less than seamless. Since the 1930s, with the consumption of high-quality st...

　　The bearing capacity of a lsaw steel pipe is related to two points. One point is the mechanical properties of the steel, which is related to the commonly stated yield point, tensile strength, elongation and impact toughness. The other point is related to the geometrical characteristics of the section. Generally, a circular straight welded pipe has the strongest resistance to local buckling, and thus it is the best member to withstand radial internal pressure and radial external pressure. 　　Under the same steel number, equal area and the same supporting conditions, the rectangular slanted steel pipe has strong eccentric compression bearing capacity, and the circular and square steel tubes have the strongest compressive bearing capacity, but the square and rectangular lsaw steel pipes are subject to the ability of the nip to resist local buckling is not as good as that of a circular steel tube. Compared with the lsaw steel pipe, the seamless steel pipe has a complicated production p...

　　 1. Definition of lsaw steel pipe pressure pipeline 　　 LSAW steel pipe pressure piping should include all straight seam steel pipe pipes that use pressure to deliver gas or liquid. From the point of view of safety production, it is the name of the straight seam steel pipe pressure vessel. Therefore, it is not a pressure pipe in a simple sense. The possibility of accidents and the hazard of the accident define the scope of the straight seam steel pipe pressure pipe. The pressure line uses a certain pressure, a tubular device for conveying gas or liquid, a liquid medium having a temperature higher than or equal to the standard boiling point, and a pipe having a nominal diameter of more than 25 mm. Straight seam steel pipe pressure equipment, in addition to its own blasting, will also cause explosions and fires due to leakage of the medium. 　　 2. Application of lsaw steel pipe pressure pipeline 　　LSAW steel pipe pressure piping is an important part of the production process, main...

　　Fracture of lsaw steel pipe , mechanical properties of hydraulic (pneumatic) parts used in design, brittle fracture is also related to the use temperature of the component. 　　It has been found through research that when the temperature is lower than a certain temperature value, it is found that the data will be transformed into a brittle state, and the impact absorption work is obviously reduced. This phenomenon is called cold brittleness, and low stress brittle fracture occurs in high-strength metal materials. In the process, the data organization is far from uniform and isotropic, there will be cracks, and there will be defects such as inclusions and pores. These defects can be regarded as microcracks in the material. Therefore, the design should also select the data with the appropriate cold-brittle transition temperature according to the working temperature of the component. 　　In general, it is assumed that the data is uniform and continuous isotropic. According to this metho...

　　Large diameter LSAW steel pipe with its large wall thickness, good material, processing technology and stability, has become the first choice of steel large oil and gas transmission project at present at home and abroad. 　　Measures to control quality of LSAW steel pipe: 　　1. 1> before the welding quality control to quality first good raw materials, can be officially entered the construction site after passing inspection, and resolutely put an end to the use of substandard steel. 　　2> followed by the management of welding materials. Check whether the welding materials for qualified products, storage and baking system is executed, issued by the welding material surface is clean without rust, the electrode is intact, there is no mildew. 　　3> again is the welding area clean management. Check the welding area clean quality, no water, oil, rust and other dirt film, which plays an important role in avoiding weld external defects. 　　4> select the appropriate welding me...

　　In the long-distance pipeline construction, with steel lines account for a large proportion, under normal circumstances, 35% to 40% of line pipe investments accounted for total project investment. How to choose a reasonable price, excellent performance of the pipe is particularly important, a reasonable choice to save the pipe construction investment, to facilitate the construction and safe operation of the pipeline system has a very important impact. LSAW steel pipe advantage make it can be widely used for its unique long-distance oil and gas pipelines. 　　Advantages of LSAW steel pipe are: 　　(1) without the unwind process, the base material indentation, scratch less. 　　(2) the wrong side, slotted, and other easy-to-diameter perimeter control, excellent welding quality. 　　(3) the elimination of flaring basically does not exist residual stress after stress. 　　(4) because it is a straight line weld, the weld is short, little risk of defects. 　　(5) after expanding, pipe geo...

　　The main differences between SSAW and LSAW steel pipes are in their length and pattern of welding seam. SSAW pipes have longer welding seams than LSAW pipes and so have a higher risk of seam defects. Meanwhile, for SSAW steel pipes, the welding seam is at a certain angle with the orientation of the priciple stress. This shortens the faulty welding joints of an SSAW steel pipe when compared with an LSAW steel pipe of an equivalent length. (This reduces the danger of a single defect). The disadvantage and advantage mentioned above cancel out each other. The difference between the orientation of the welded seam and the special directivity often major raw material of a SSAW steel pipe enhance its resistance against fracture. 　　In 1998, the Tubular Goods Research Center of CNPC, together with China Petroleum Planning and Engineering Institute conducted a comparative experiment systemically on domestically produced SSAW steel pipes and imported LSAW (UOE) steel pipes. 　　The following ...

　　LSAW steel pipes have several flaw detection tests. LSAW steel pipes are now used more and more widely. According to different projects, the standards for using steel pipes are also different. 　　Generally speaking, steel structures, piling, sewage discharge pipes, etc. There is no requirement for flaw detection of steel pipes, no need for flaw detection, and the projects used for flaw detection are: natural gas pipelines, oil pipelines, fire pipelines, etc. These projects have extremely strict requirements for flaw detection, and some strength flaw detection standards are related to The safety of the project is even related to the safety of people's lives. 　　There are two types of flaw detection that are most widely used. One is ultrasonic flaw detection. This type of flaw detection is to use ultrasonic energy to penetrate into the depth of the metal material and to reflect at the edge of the interface when one section enters another section. A method of part defect, when the...

　　 LSAW steel pipe quality check methods, during which the physical approach is the most commonly used inspection methods, physical examination is the use of physical phenomena to determine or check the method. 　　 Magnetic force 　　Magnetic flaw detection can only find the appearance and appearance of magnetic straight seam welded pipe shortcomings, and the shortcomings can only do quantitative analysis, the nature and depth of the shortcomings can only be based on experience to estimate. Magnetic inspection is the use of magnetic field magnetization of ferromagnetic Longitudinal Welded Pipe leakage occurred to find the shortcomings. According to the measurement of magnetic flux leakage method is not the same, can be divided into magnetic powder method, magnetic induction method and magnetic recording method, during which the most widely used magnetic powder method. 　 　Soaked inspection 　　Penetration test is the use of some of the liquid permeability and other physical properti...