Seamless Steel Pipe

 Connection method of large diameter spiral steel pipe (SSAW): The common connection method of large-diameter spiral steel pipe is welding, but in some projects, threaded connection, flange connection, socket connection, groove connection and other forms are often used. 1. Welding, flange connection Welding and flange connection are traditional spiral steel pipe connection methods, which are far from meeting the market demand in terms of safety, sealing performance, cost space, and emergency repair efficiency. Scope of application: Water pipeline connection, oil and natural gas pipeline connection, chemical pipeline connection, power pipeline connection. 2. Connection of grooved pipe fittings Grooved pipe connection technology, also known as clamp connection technology, has become the first technology for liquid and gas pipeline connections. Although this technology was developed later in China than abroad, due to its advanced technology, it was quickly adopted by accepted by the m...

 We use stainless steel seamless pipes many times now, and many customers face a lot of problems when selecting materials, looking at the uneven prices on the market and related problems, there is no final solution. Here are some tips to share with you, so as to improve the cost-effectiveness of products when selecting finished products in the later stage. 1. Take 304 material as an example: when selecting steel pipes, it must be determined that the material meets the standard. 1) From the price analysis, if the 304 stainless steel pipe is even lower than the general price of the 301 material on the market, it must be carefully identified, it is likely to be impersonated by other materials; 2) Identify whether the word “304” is stamped on the surface of the pipe, and ask for the manufacturer’s quality certificate as a certificate; 3) It can be tested with an acid reagent, after 30 seconds, the material 304 will not change color, and the material 201 will turn black; 4) For bulk pur...

 As early as four years ago, according to the statistics of the South African National Industrial Development Corporation (IDC), South Africa's steel production at that time could meet domestic consumption, but by 2020, even the most conservative forecast, consumption will reach 10 million tons. Exceeded the crude steel output at that time. Four years later, the predictions of the South African National Industrial Development Corporation (IDC) have become a reality ahead of schedule, with South Africa's annual steel demand reaching 10 million tons. China-Africa cooperation era From September 3 to 4, the Beijing Summit of the Forum on China-Africa Cooperation, with the theme of "cooperation and win-win, and building a closer community of fate between China and Africa" was successfully held. South African President Ramafosa, former co-chairman of the China-Africa Cooperation Forum, said in an interview with media reporters: "Africa and the Chinese people need a com...

 1) Influence of alkalinity of slag: Increasing alkalinity can improve dephosphorization capacity, but too high alkalinity affects the viscosity of slag and is not conducive to dephosphorization. 2) Effect of (FeO): Increasing the content of slag (FeO) can improve the dephosphorization ability. 3) Effect of temperature: Dephosphorization is an exothermic reaction, and lowering the temperature is beneficial to dephosphorization. 4) Influence of slag amount: Increasing the slag can dilute the concentration of (P2O5) in the slag and increase the amount of dephosphorization. 5) Influence of slag viscosity: Appropriate slag viscosity is easy to mix slag steel and improve slag dephosphorization capacity. http://www.tjxysteel.com/news/Basic-factors-that-affect-the-dephosphorization-effect-585.html

 Production methods Stainless steel tube according to the production method is divided into two categories of stainless seamless pipe and stainless welded pipe, stainless seamless steel pipe can be divided into hot-rolled tube, cold-rolled tube, cold-drawn tube and extrusion pipe, cold drawing, cold rolling is the second Processing; welded pipe is divided into straight seam welded pipe and spiral welded pipe. Section shape Stainless steel tube by cross-sectional shape can be divided into tube and shaped tube. Shaped tube with rectangular tube, diamond-shaped tube, oval tube, hexagonal tube, all directions and a variety of cross-section asymmetric tube. The profiled tube is widely used in various structural parts, tools and mechanical parts. Compared with the tube, shaped tube generally have a larger moment of inertia and cross-section modulus, a greater bending, torsion ability, can be large greatly reduce the weight of the structure, saving steel. Tube end shape Stainless steel tu...

 Steel refers to a metal material with iron as the main element, carbon content generally below 2.0% and other elements. The difference between it and iron is the carbon content. It should be said that it is tougher and more durable than iron. Although it is not easy to rust, it is difficult to guarantee that it will be corroded. If it is corroded and not treated in time, it will be easily corroded. Lose the functionality it was supposed to have. When the seamless steel pipe is rusted, what are the usual treatment methods? Some people will use the cleaning method to clean the stainless steel pipe. When cleaning, the surface of the steel should be cleaned with solvent and emulsion first. This method is only used as an auxiliary means of anti-corrosion and cannot really remove the stainless steel pipe. effect of rust. We can also use steel brushes, wire balls and other tools to remove the loose oxide scale and rust on the surface before cleaning, but if we still do not take protectiv...

 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...

 On 5th September , 2018, Singapore customer Kance Liang placed an order for more than 100 tons of spiral welded pipe. On October 16, 2018, Mr. Kance Liang reported that he had already received total six containers for the order. After the goods were taken, the inside diameter, outer diameter, wall thickness, length, etc. were tested by customer. Customer engineer feedback all the specifications are in line with the requirements of the standard and engineering design. I met with Kance Liang through the social platform. At that time, the project has reached the procurement stage. The customer wants the goods very urgently, after confirmed all the details, the customer proposed the target price,considering the first cooperation, they asked us to provide all the qualification certificates, as well as the historical project materials, after the customer review, they are very satisfied.?The target price was adjusted immediately, and we hit it off. The first cooperation we did great supp...

 As early in 2017, customers came to China. Xinyue adhered to aim Best Price, High Qality, Fast Delivery and First –Class Serivce , although my time schedule was conflicting, the company still offer strong support, and Boss Mr Li privately helped to make the reception. The customer is very satisfied with our production line, production capacity, quality control and service. And Good news that it finalizes the contract before flying back. In the first half of 2018, customers visited China again, but the stay time was extremely tight, and sorry to miss this meeting again. Customers have always given a high thick of our delivery time and product quality. It has been mentioned many times that we should have a meal together next to China and have new business expectations. In mid-September 2018, the customer said they would come to China again. Finally, we have the opportunity to meet. I felt a little nervous when felt happy. We hope that we can deepen cooperation and expand new busines...

 Seamless steel pipe VS welded steel pipe: 1. Seamless steel pipe is a kind of strip steel with no joints around and a hollow section, which is widely used as a pipeline for conveying fluids. Compared with solid steel, it is lighter in weight with the same bending and torsional strength. It is an economical section steel and is widely used in the manufacture of structural and mechanical parts, such as automobile transmission shafts, oil drill pipes, bicycle frames and construction steel. Scaffolding etc. 2. Welded steel pipes are steel pipes made of steel plates or steel strips that are crimped and welded. The production process of welded steel pipe is simple, with many varieties and specifications, less equipment and high production efficiency, but its comprehensive strength is lower than that of seamless steel pipe. With the rapid development of continuous rolling production of high-quality strip steel and the advancement of welding inspection technology, the quality of welds has...