steel tube

 The old customer in Africa has cooperated with our company for more than 5 years. Our customers mainly purchase small diameter square and rectangular tube and round tube,but the mainly product is square and rectangular tube.During the 5 years of cooperation, our customers have placed great trust in us and are satisfied with our quality and service.During the years of cooperation, customers have very strict requirements on container loading, which can save high container freight and save costs for customers. The tenet of xinyue is to serve every customer well. Under normal circumstances, containers can only hold 25 tons, but the customer requires 28 tons for each container. In order to meet the customer's requirements and save the customer's cost, xinyue logistics department tries to consider how to save the volume before packing. XinYue has professional packing workers , in the process of packing, cannot leave each givers hard labor, workers will place tubular steel pipe befor...

 Any project wants to be successful, need to provide the best service and the best quality for customers on a professional basis, not only to discuss with customers about various technical issues, but also to provide customers with samples for testing.In December 2019, our client in Kazakhstan tested the qualified sample pipeline, and the client was satisfied with our quality and began to push forward the project of seamless pipeline for fluid transportation. In January of this year, customers and us reported that we have successfully received this order and hope that we can deliver as soon as possible. At the time of the Chinese New Year holiday, customers expressed their understanding and waited patiently for us to resume work. In early February, affected by the new coronavirus epidemic, most factories were delayed in returning to work. After explaining the situation to the customer, in order not to delay the progress of the customer's project, our factory actively did epidemic p...

 Austenitic weld inspection within the oil and gas industry is one of the most important assets for professionals in this field. But the inspection process can be daunting without the right equipment. Austenitic alloys and stainless steel resist corrosion more than other materials but are not impervious to corrosive degradation. Therefore, NDT inspectors must implement the same rigorous NDT standards on austenitic alloys and stainless steel as any other item. The best way to test stainless steel and austenitic alloys is via PAUT using 2D matrix array probes. Stainless steel materials carry anisotropic coarse-grain content, with each grain causing reflections and high noise levels. The high noise levels result in greater feedback issues during conventional testing processes versus PAUT. Also, NDT specialists must deal with unintended variations within the structure of the pipeline, making testing difficult. When inspecting an austenitic weld, for example, NDT operators can use the 2...

 In order to optimize the production of blast furnace system and strengthen the technological transformation of energy-saving and environmental protection processes, since October 2019, the Maanshan Iron and Steel Plant has made a careful plan to penetrate the standards of the "energy-saving and environmental protection, green development" strategy into all aspects of enterprise development, and promote No. A blast furnace Major revisions to the construction of key energy-saving and environmental protection projects such as No. 3 sintering machine flue gas denitration and ultra-low emissions, to promote the high-quality development of blast furnace system production. In implementing the strategy of “Energy Conservation, Environmental Protection and Green Development”, the main plant adopted “two-handed, two-handed” measures: on the one hand, optimizing the production of the blast furnace system and strengthening the energy-saving and environmental-protection process and techn...

 In November 2019, Tianjin Xinyue established a preliminary contact with a steel pipe processing plant in Vietnam. In the first communication email, the customer stated that he was unwilling to spend too much time in negotiations, and we had only one chance. If the service cannot make him satisfied ,he will not reply any of our information in the future. Although the customer did not have a real purchase order at the time, he still sent us several specifications that often need to be purchased. Let us provide a solution reference. After receiving the customer's first inquiry, we made a comprehensive analysis. The customer's long-term purchase specifications are ERW welded pipes with sizes ranging from 2inch-10inch. Although the destination port is in Vietnam, the customer's standard requirement is the Australian standard BS1163 C350. We also infer that customers will have stricter quality control. It is gratifying and proud that Tianjin Xinyue has been supplying in the Aust...

 In December last year, we received an inquiry from a long-term Southeast Asian customer for 320 tons of large straight seams. The delivery date was originally agreed to be delivered in mid-February. Due to the epidemic, the steel mill delayed resumption, and the raw materials could not arrive at the steel plant for production as scheduled, resulting in a serious delivery period. The extension was postponed, and the customer itself was very anxious to wait for the steel pipe to start the project. In this way, the original plan of the construction party was disrupted. As a supplier, when it encountered such force majeure factors, it could only explain to the customer patiently and apply from the CCPIT. When the force majeure factor proves, The customer is also aware of the new coronary epidemic situation in China from all aspects. Although the plan was disrupted, they finally expressed understanding. At the same time, we kept very close contact with the customer and kept updating pr...

  Ⅰ.  High heat transfer coefficient of stainless steel pipe Stainless steel pipes have a high heat transfer coefficient. The heat transfer performance of stainless steel pipe is realized by its unique ultra-thin-walled steel pipe, which is a thin-walled pipe with continuous tangent between large and small arcs and corrugated inner and outer shapes. The height difference between the wave crest and the wave trough causes the fluid to be strongly disturbed. This disturbance comes from the three-dimensional movement of the fluid inside and outside the tube, so the degree of disturbance is more intense and thorough. Even if the fluid velocity is very low, it may become turbulent, and the temperature gradient of the thin-walled tube wall is very small. Ⅱ. High temperature resistence of stainless steel pipe Stainless steel pipes are very resistant to high temperatures. Although the stainless steel pipe has a thin wall (0.5-0.8mm), the pressure-bearing capacity of the steel pipe is g...

 In November 2019, Tianjin Xinyue established a preliminary contact with a steel pipe processing plant in Vietnam. In the first communication email, the customer stated that he was unwilling to spend too much time in negotiations, and we had only one chance. If the service cannot make him satisfied ,he will not reply any of our information in the future. Although the customer did not have a real purchase order at the time, he still sent us several specifications that often need to be purchased. Let us provide a solution reference. After receiving the customer's first inquiry, we made a comprehensive analysis. The customer's long-term purchase specifications are ERW welded pipes with sizes ranging from 2inch-10inch. Although the destination port is in Vietnam, the customer's standard requirement is the Australian standard BS1163 C350. We also infer that customers will have stricter quality control. It is gratifying and proud that Tianjin Xinyue has been supplying in the Aust...

 Prior to welding quality control Make a good quality of raw materials, after passing inspection before being officially entered the construction site, and resolutely put an end to the use of substandard steel. Followed by the management of welding materials. Check whether the welding materials for qualified products, storage and baking system if implemented, whether to issue a welding material surface clean and free of rust, electrode coating is intact, with or without mildew. Welding area clean management. Clean quality inspection weld zone, without water, oil, rust and dirt oxide film, which is to prevent external weld defects produce important role. Select the appropriate welding method should be implemented first test welding, after welding principles. Quality control in the welding process According to welding procedure specifications wire and flux review is correct, prevent misuse wire and flux caused by welding quality accident. The welding environment supervision, take app...

 To promote steel industry, to represent Made-in-China ! Xinyue participate in various professional steel exhibitions around the world, aiming at having a fully understanding and deep communication with new and old customers. Therefore, Xinyue's excellent products, professional team, rich experience and firm belief in serving the global steel industry will help the industry development. DubaiBig5 is one of the most famous exhibitions in the steel industry. Not only the major steel manufacturers and actual end users in the Middle East will come to the exhibition to learn about the world steel market and find new development opportunities and partners for enterprises in the future, but also steel related people from other regions of the world will actively participate in the exhibition. This order is issued after we met the client at at Big5 steel exhibition in November 2019. At the exhibition,customers directly came to our company's booth after being introduced by other peer fri...

 Tianjin Xinyue Steel Group is located in Tianjin Industrial Zone, near Tianjin Port. Xinyue is one of the major large-scale steel pipe enterprises in China, integrating steel pipe production, inventory and domestic and foreign sales. At the same time, we have several production base of ERW steel tubes, SSAW steel tubes, LSAW steel tubes, SMLS steel tubes, scaffolding and couplers. In order to better serve customers, we have been constantly breakthrough and learning on the professional road. Today, let's know about the three common problems of seamless thick wall steel tubes. I believe these are also problems encountered by many customers when purchasing 1.Eccentric As long as it is seamless steel pipe, there will be non concentricity phenomenon, which is mainly generated during perforation, which is unavoidable. Compared with the general wall thickness seamless pipe, the non concentricity phenomenon will be more serious , the thicker the wall thickness, the greater the eccentricit...

 1. The size of the casting cannot be too large: investment casting is most suitable for casting medium and small castings with a few shells to more than ten kilograms. In recent years, although the research and production of large-scale precision castings have made great progress, after all, there is a limit, and the size and weight can not be almost unlimited like sand casting. 2. The process is complicated: There are many investment casting procedures, the process is complicated, the production cycle is long, there are many factors affecting the quality of the bag ring castings, and the requirements for the material and process are relatively strict in production. 3. Slow cooling rate of the casting: The solidification and cooling rate of the investment casting is slow, and the crystal structure is coarse. Except for special products such as directional solidified columnar crystals and single crystal mussels, the mechanical properties of general alloy castings are lower than tho...

 The process performance of seamless steel tubes (smls tube) can be inspected through four aspects: hydraulic (water) pressure test, flattening test, bending test, and flaring test, to test the suitability of the steel pipe’s own quality in the subsequent processing and manufacturing process. Commonly used process performance tests include water pressure, flattening, bending, and flaring tests. Let me share these knowledge points with you. (1) Hydrostatic test: pour a certain pressure of water into the tested steel tube and maintain the pressure for a certain period of time (the test pressure value and the voltage stabilization time are in accordance with the standard), and there is no leakage. This test is a non-destructive inspection, which is often used to inspect all products. (2) Flattening test: Put the steel pipe sample between the two flat clamps, apply force between the clamps until the distance reaches the specified value of the standard, and check that there are no crack...