Seamless Steel Pipe

Product：Ssaw Steel Pipe Standard and material：EN10219 S235JR / S355JOH Specifications：OD 16” – 40” Application：Structure Tubular Piling Estimated arrival time：2023.11.12 This is a purchasing order of structural tube signed by a regular customer that Xinyue has cooperated with for more than ten years, and is used to replenish inventory. We strictly control product quality and conduct strict testing on each steel pipe to ensure its high quality and reliability. At the same time, we are committed to quality assurance and on-time delivery to ensure that we meet customer needs. We have established long-term and stable cooperative relationships with many European customers, and have won the trust and reputation of our customers with our honest operations and high-quality services. By choosing us, you not only choose a steel pipe exporter, but also a trustworthy partner. We will continue to provide you with the best quality products and services and create a better future with...

At the beginning of June, Mr. K, who has been cooperating for a long time, sent an online inquiry about SSAW steel pipe again, the material is ASTM A252 Q345B. Through customer sharing, we learned that these products serve piling projects. At that time, the customer had already won the project and started purchasing materials. After understanding this information, we adhere to a professional, scientific, and comprehensive service attitude for customers, actively confirm technical details with customers, and provide customers with quotations in a timely manner. Based on our understanding of our qualifications and project experience, coupled with our past satisfactory cooperation experience, less than one month after the customer sent the inquiry, we signed the contract with the customer. Add brilliance and strength to our road of cooperation! Xinyue always adheres to the concept of "integrity-based, customer first, high quality and efficiency", repays customers with the best s...

Project Location: Singapore Product: SSAW steel pipe welded with T + L clutch Specification: 1800mm x 15meter/18meter Standard & Grade: EN10219 S355JR Usage: Metro piling construction Received the inquiry in June 2021. Signed the contract on July 21th 2022 Shipping time: Early Oct, 2022 In this July, after received client confirmed PO, our company urgently purchased raw materials and coordinated the welding team in advance in order to meet the delivery date of the customer. After 60 days of efficient steel pipe production clutches welding and successful third-party inspection, the first batch of finished steel pipes were finally successfully delivered to Tianjin Port. It has taken more than one year from the first inquiry to the final order for this project. Due to the single specification and large quantity, the competition has been very fierce since the initial quotation. Besides, the lock of this order is not the common C9 clutch, but the T + L type clutches which needs special ...

SSAW steel pipe is a welded steel pipe made of strip steel coil as raw material, often warmly extruded, and welded by automatic double-wire double-sided submerged arc welding process. The process properties of SSAW steel pipe include bending, surface quality, size, shape, weight and allowable deviation. 1. Bending performance of SSAW steel pipe: After bending 180 degrees with the bending center diameter specified in the following table, the surface of the bending part of the steel bar shall not be cracked. 2. Reverse bending performance of SSAW steel pipe: According to the requirements of the buyer, the steel bar can be tested for reverse bending performance. The diameter of the bending center of the reverse bending test is correspondingly increased by one steel bar diameter than that of the bending test. Bend 45 degrees in the forward direction, 23 degrees in the reverse direction, and 23 degrees in the reverse direction. After the reverse bending test, the surface of the bending part...

Project location：South America Product：SSAW Steel Pipe Standard and material：API 5L X65 Specifications：914x22mm Application：Marine construction Inquiry time：2019.12 Order time：2022.09 Shipping time：2022.12 Estimated arrival time：2023.02 After decades of development since the founding of Xinyue Steel, we have successfully worked on numerous projects, large and small, with various regions and countries around the world.Xinyue has been established for decades and has participated in numerous large and small projects. The project follow-up period is generally measured in years. Our company usually starts to participate in the early stage of project design, providing customers with excellent prices and professional advice to complete the initial budget. And design, and then continuously update customers so that customers can purchase at the best price to save costs. The project we are talking about today, Xinyue has been involved in it since we first received the inquiry from the customer i...

Project location：France Product：SSAW steel pipe Standard and material：EN10219 S355JR Specifications：914mmX 20mm Usage：Marine Piling Project Inquiry time：2022-01-15 Order time：2022-03-25 Shipping time：2022-5-25 Arrival time：2022-07-06 I met this French customer in 2018. The customer visited the factory twice, and was very satisfied with the equipment, professionalism and management of the factory, and placed orders for Xinyue in the next few years. This order is for 914 pile pipes, with a total of more than 400 tons. As it is a marine pile pipe project, the outer surface of the steel pipe needs Hempel’s epoxy coating and the shipment also needs to be very professional and careful. After more than 1 month of production, all the coated pipes have been produced and passed the comprehensive inspection by a third party. Considering the fragility of the coated pipe, the packaging is factory-installed. Each pipe has been added with 8 cloth ropes and the pipe ends are equipped with slings. At t...

Project Location：Philippines Product：SSAW Steel Pipe Standard and material：ASTM A252 GR3/Q3555B Specifications：2024*12 AND 1824*12 Usage：PILING PROJECT USAGE Inquiry time： April of 2022 Order time：June of 2022 Shipping time：Aug of 2022 Estimated arrival time：SEP of 2022 This is not the first time that xinyue has helped with the Philippine project. In recent 5 years, we have participated in the Cebu Airport construction project, bridge, aircraft fuel pipeline project and pile pipe project in the Philippines. Through the last cooperation, the customer has great confidence in the quality of our products. In this project, the pipe diameter is large and the wall thickness is thin. Therefore, we will make steel cross supporting for pipe end to ensure that the pipe will not be deformed. In addition, the customer requested Baosteel raw materials this time, so we just have good cooperation experience with major raw material manufacturers, and we provide enough financial support. So Baosteel gav...

 After two months, the ssaw steel pipes provided by Tianjin Xinyue Steel Group, used in Indonesia Bintan port construction, has successfully finished the first phase phase. We received inquiry from our Australia client of Bintan Port Project in Indonesia in June and then followed intensively with client about the status of the project. After finalizing the drawing, we gave competitive price, our qualification, third party inspection report, mill test report. On July 5th, our Client Leslie came to Tianjin Xinyue Steel Group, together with their technician, visiting our SSAW steel pipe mill and negotiating with our sales and technicians about the details. Then after visiting mill, they are quite satisfied with our productivity and inspection machinery. What they much cared was the delivery time. For this point, after signing contract, we attached much attention and gave priority for production schedule. We finished production, inspection and loading within 25 days. Now the first phas...

 In September 2019, Xinyue successfully won the first phase of Middle East drinking water ssaw steel pipe project with the quantity of 2530 tons, steel standard is API 5L Gr.b. OD= DN800mm. external coating is 3PE and internal coating is epoxy. The whole process of this order witnessed by the third party BV. Before the production of steel pipes, the third party inspected the appearance, coil width and wall thickness of raw materials, retested the chemical composition and mechanical properties of each heat number. The welding wire, flux, electrode should have test report and the factory should submit the qualified WPS$PQR for BV evaluated and reviewed . Production is allowed only after all inspections are qualified. After one month's production, all the test and geometric dimensions of the steel pipe are 100% qualified and approved for coating under the judgment of the third party. This qualification rate is attributed to Xinyue's strict compliance with the standard for each ord...

　　"ERW steel pipe" is a straight seam electric resistance welded pipe. English Electric Resistance Welding, abbreviated as ERW, is used to transport vapor and liquid objects such as oil and natural gas. It can meet various requirements of high and low pressure, and currently accounts for the world in the field of transportation pipes. A pivotal position. 　　1. The welded pipe is made of steel plate welded by high-frequency electric resistance welded pipe (ERW steel pipe), straight seam electric welded pipe (LSAW steel pipe), spiral welded pipe (SSAW steel pipe). In electrical engineering, it is indicated by "SC". It can be used as a water gas pipe or a threading pipe, which is relatively thick. 　　2. the line pipe is also the wire tube, relatively thin, with the "T", can only be used for threading. 　　3. The ERW tube is a “high-frequency resistance welded steel pipe”. It is different from the ordinary welded pipe welding process. The weld is made of the...

　　Spiral welded pipe (some people call it SSAW steel pipe) is also a kind of welded pipe, its strength is generally higher than the LSAW steel pipe. Spiral welded pipe with large diameter can be produced by the narrow blank, and SSAW steel pipe with different diameter can also be produced by the same width of blank. However, compared with the same length of the straight pipe, the weld length increased by 30 to 100%, and the production rate is low. Therefore, the smaller diameter of the pipe mostly use LSAW steel pipe, large diameter welded pipe mostly use spiral welded pipe. 　　The production process of spiral welded pipe 　　Spiral welded pipe is the steel pipe with spiral seam that using the strip coil as raw material, extrusion forming under normal temperature, and using automatic double wire double-sided submerged arc welding process to weld. 　　1.Raw materials are coil, wire, flux. Those must finish the rigorous physical and chemical testing before putting into. 　　2.The head ...

　　For the general enterprise, advantages of the SSAW steel pipe are that it is suitable for the manufacture of medium and below wall thickness (20mm), large diameter (1-3mm) and medium grade (X70). Its limitations are due to the spiral around the tube, the weld in the curved surface position, thus the welding is more difficult, and improving the welding speed is also not easy, the residual stress is larger. Therefore, it is difficult to improve the steel grade (X80) and to improve the wall thickness (20 mm). When the wall thickness is large (for example, 25 mm), the weight due to the weight of the coil can be manufactured, but the yield is low. 　　In order to overcome the limits of SSAW steel pipe, foreign SSAW steel pipe manufacturer adopted some measures. To eliminate the residual stress, Russia adopted the whole body heat treatment method, Canada adopted the whole pipe body mechanical expansion method; in the process of forming the process to overcome the low speed of submerged ar...

　　This year, the effectiveness of China's steel industry achieved a comprehensive upgrade, what is the main reason? Prime Steel Pipe as the leading manufacturer and exporter of carbon steel pipe , including ERW steel pipe, LSAW steel pipe, SSAW steel pipe, seamless steel pipe, etc., we think the main reason are: 　 　1. Domestic economy remain stable 　　First of all, the national economy remain stable, real estate, infrastructure, automotive and other related industries demand, become the biggest driving force of the steel industry. GDP growth 6.9% in the first half of 2017, for eight consecutive quarters to maintain the range of 6.7% -6.9%, of which real estate and infrastructure investment growth has rebounded. 　　 2. Effective supply structural reform 　　Second, the supply structural reform and DE-capacity promotion effective changed the phenomenon of excess capacity. According to the data report, five years target of excess capacity of China's iron and steel industry is ...

　　The raw material of ssaw steel pipe is a hot rolled plate, which is a strip or a coil. 　　Hot-rolled steel sheets, that is, hot-rolled steel-rolled steel sheets or steel strips, commonly known as hot plates, are usually also written as zigzags, such as hot-rolled sheets, but all refer to the same hot-rolled sheet. Refers to a steel plate having a width greater than or equal to 600 mm, a thickness of 0.35-200 mm, and a steel strip having a thickness of 1.2-25 mm. The cold-rolled sheet is obtained by rolling a hot rolled coil as a raw material at a recrystallization temperature at room temperature. 　　The difference between hot rolled sheet and cold rolled sheet: 　　Hot-rolled steel sheets are divided into structural steel, low-carbon steel, and welded steel, and then you can find the steel you need according to various steels, and check the density and composition of specific steels. 　　Hot-rolled steel sheets have low hardness, easy processing and good ductility. 　　The cold ro...

　　The large-diameter ssaw steel pipe factory needs to test the product after the production is completed, especially its compressive capacity, because we usually use it in the ground when it is used, so it is required to have good pressure resistance, then how to test it. 　　Firstly, both ends of the tested steel pipe are sealed by the end seal device and low pressure water is injected. During the water injection process, the air in the pipe is exhausted through the exhaust valve. After the low pressure water is filled, the high pressure water is injected into the pipe through the pressurizing device to pressurize the gas. The specified test pressure is reached. After the specified test pressure is reached, the pressure is maintained for a predetermined period of time. If there is no leakage or deformation, the pressure is released. 　　Products that have been tested for resistance to stress can be used to ensure the effectiveness of the spiral tube. Of course, it is necessary to car...

　　The double-sided submerged arc welded spiral steel pipe produced by the ssaw steel pipe factory shall be subjected to mechanical performance test, flattening test and flare test before leaving the factory, and meet the requirements of the standard. The quality inspection method is as follows: 　　1. Double-sided submerged arc spiral steel pipe is judged from the surface, that is, in appearance inspection. The appearance inspection of welded joints is a simple and widely used inspection method. It is an important part of the inspection of finished products, mainly to find defects and dimensional deviations on the surface of the weld. It is generally inspected by the naked eye and by means of tools such as standard templates, gauges and magnifiers. If there is a defect on the surface of the weld, there is a possibility of defects inside the weld. 　　2. Inspection of the physical method of double-sided submerged spiral spiral steel pipe: The physical inspection method is a method of m...

　　 SSAW steel pipe itself has no life limit, and the service life is mainly related to the operating environment and production process. Spiral steel pipe operating environment is relatively poor In order to extend the service life, the outer wall and inner diameter of the steel pipe are preserved. 　　Anti-corrosion steel pipe refers to a steel pipe that has been treated by anti-corrosion technology and can effectively prevent or slow down the corrosion phenomenon caused by chemical or electrochemical reaction during transportation and use. The anti-corrosion steel pipe can effectively prevent or slow down the corrosion and prolong the service life of the steel pipe and reduce the running cost of the steel pipe. 　　There are many steel pipeline anti-corrosion coatings in China, such as petroleum asphalt, PE jacket and PE foam jacket, epoxy coal tar pitch, coal tar enamel, epoxy powder and three-layer composite structure, and epoxy coal tar pitch cold-wrapped belt (PF type). , rubber...

　　The production control of the thick-walled spiral steel pipe is to increase the plastic toughness of the steel pipe, improve the cleanliness of the molten steel, reduce the harmful inclusions, and improve the overall quality of the steel pipe. In the production process, a reasonable cooling system is adopted to avoid internal cracks and enhance the quality of steel pipes in many aspects. 　　 SSAW steel pipe in the production process of reasonable control of the heating temperature, through the determination of the thermoplastic curve, select the best heating temperature. The billet heating should also pay attention to enough heat preservation time to reduce the deformation resistance and increase the toughness of the thick-walled spiral pipe plastic. 　　SSAW steel pipe production process requires more procedures, the final step is to reduce the roller speed, the roller speed is the key parameter of the perforation process, the roller rotation speed from low to high changes in the ...

　　For ssaw steel pipe , we all know that the quality of the ssaw steel pipe is the most important thing for the quality of the whole spiral steel pipe, but the inspection of the geometric size of the spiral steel pipe can not be underestimated. So what tools do we use to measure the geometrical dimensions of spiral steel pipes? Here we give you a brief introduction: 　　1. Inspection of outer diameter and ellipticity of spiral steel pipe: caliper, vernier caliper and ring gauge, measuring the maximum and minimum points. 　　2. Check the thickness of the spiral steel pipe: Micrometer, ultrasonic thickness gauge, no less than eight points at both ends and record. 　　3. Spiral steel pipe end face angle and blunt edge inspection: square, card board. 　　4. Check the length of spiral steel: steel tape, artificial, automatic length measurement. 　　5. Spiral steel tube bending inspection: ruler, horizontal ruler (1m), feeler ruler, thin line measured per meter bending, full-length bending. ...

　　 SSAW steel pipe feeds the steel strip into the welded pipe unit and is rolled by multiple rollers. The strip steel is gradually rolled up to form a circular billet with an open gap. The amount of pressurization of the squeeze roller is adjusted so that the weld gap is controlled at 1~ 3mm, and make the weld ends flush. 　　1. If the gap is too large, then the proximity effect is reduced, the eddy current heat is insufficient, and the weld intergranular joint is poor and unfused or cracked. 　　2. If the clearance is too small, the proximity effect will increase, the welding heat will be too large and the welding seam will be burned; or the welding seam may be squeezed and rolled to form a deep pit, which will affect the surface quality of the weld. 　　After the two edges of the tube are heated to the welding temperature, under the extrusion of the squeezing roll, common metal crystal grains are formed to infiltrate and crystallize with each other, finally forming a firm weld. If t...