ERW Steel Pipe

 The pickling solution used in the pickling process of seamless square tubes is generally a mixture of various acids, mainly sulfuric acid, nitric acid and hydrofluoric acid, etc. These mixed acids are highly corrosive and have strong oxidizing properties. The temperature is also relatively high, which puts forward high requirements on the corrosion resistance of anti-corrosion materials. There are many anti-corrosion materials suitable for seamless square pipes, and the best ones for seamless square pipes are epoxy resins and their modified resins. The principle of pickling of seamless square tube is to use acidic liquid to remove the oxide skin on the surface of the seamless square tube after pretreatment, remove the metal ions on the surface, and make it have a beautiful finish. The material forms of pickling include belt washing, tube washing, plate washing, line washing, etc. Due to defects such as cracks in the hot-rolled tube blank or after the high-precision cold-drawn tube...

 In October 2018, Tianjin Xinyue Marketing Department went to Malaysia and visited our old and new customers. Among them, we visited one of the most famous local manufactures of boiler and pressure vessel in Malaysia and discussed a seamless boiler tube trial order on site. During the business meetings, we believe that jump was introduced in detail to the customer had all kinds of seamless steel pipe project, as well as our technical control points for seamless steel tube production, quality inspection process, file, and finished product traceability, etc., to answer the questions from the customer for customers to understand our production line on every detail. After returning to China, after research and discussion with the engineering department, Xinyue and customers finalized all the technical details of the boiler tube trial order, and successfully won the trial order. The standard of these boiler tubes is BS 3059 Pt.2, and the material is S2 CAT2 Gr360. This standard is very ...

 At the end of November 2018, the lance tube finally completed the production of the last batch of goods. From the import license of the customer, to the delivery of the order to the final delivery, during the three months of communication and negotiation, which finally ends in a good results. But the process of filling out this answer sheet is not easy. In the early stages of the order, the customer has expressed a clear intention to purchase, but suddenly after the signing of the PI, the customer's notice - the customer needs to submit the import license application to the government alone, the time is one month. During the period, the customer repeatedly stated that if the license is successfully approved, the shipment will be purchased. She hope that we can maintain the original price, but the price of the steel market has never been stable. I explained the instability of the steel market with my customer. After I said that the market price is unstable, my customer turns to be ...

 We warmly celebrate the continued win-win cooperation with our Syrian partners in urban construction projects! Tianjin Xinyue participate in southern Syria Daraa city foundation for the first time,We get the first phase of the bidding for hot dipped galvanized seamless pipe with couplings.Tshese pipes will be used for drinking water transmission at pressure on or around 50 bar, the pipes length will be 5.85 meters in order to fit 20ft containers.Meanwhile,the client provide special chemical composition and tensile strength requirements.One more thing,the project require the surface of galvanized coating 400 g/m2 at least, Threaded and coupling have special standard and specification.After a discussion meeting with raw material department,technical department and producing department,finally we confirm to meet the detailed requirements from the end user.Right now the pipes production is in order.The production is expected to finish in the middle of December.The transit time is arou...

 The quality and performance of seamless pipes are determined according to needs. According to different needs, different element contents and types must be matched with them. (1) Carbon: The higher the carbon content, the higher the hardness of steel, but the worse its plasticity and toughness. (2) Sulfur: It is a harmful contaminant in steel. When steel with high sulfur content is subjected to pressure processing at high temperature, it is easy to crack, which is usually called hot brittleness. (3) Phosphorus: It can significantly reduce the plasticity and toughness of steel, especially at low temperature. This phenomenon is called cold brittleness. In high-quality steel, sulfur and phosphorus should be strictly controlled. But on the other hand, the high content of sulfur and phosphorus in low carbon steel can make it easy to cut, which is beneficial to improve the machinability of steel. (4) Manganese: It can improve the strength of steel, weaken and eliminate the adverse effec...

 This African customer found us through our company's official website and send us the inquiry . Customer’s email indicates that 50 seamless tubes need to be purchased, but in terms of material selection, the customer has not yet decided whether to purchase P9 alloy tubes or L80 13CR tubes. After receiving the customer's inquiry, our company contacted the customer at the first time, and learned that the customer's pipes would be re-machined and re-sold in the target market. Customers have strict requirements on the thickness, length, ellipticity and flatness of the pipes. In terms of price, customers also need our company's greatest support. After understanding the actual needs and focus items of the customer, we recommend the use of P9 alloy pipes to customers, and give customers guarantees on wall thickness, length, ellipticity and flatness. After receiving our professional advice and the most favorable price plan, the customer decided to place an order the next day. ...

 In November 2018, during the Korean visit to Xinyue, our company successfully won the first order with the new customer. After one month of steel pipe production, process welding, anti-corrosion processing and other processes, all the production tasks of the order were successfully completed. The customer visited China in December and conducted a finished product inspection. During the inspection, the customer expressed satisfaction with the quality of our steel pipe. After all the work, the entire batch of steel pipes was successfully transported to customer’s requested port. On February 26, 2019, we received the new inquiry request from the customer. After completing the first round of quotation communication, the customer was very relieved about our delivery and quality. On February 27th, the purchase order was directly sent to us. The deposit payment was completed on the morning of February 28. This is the speed of Xinyue, the trust of customers to Xinyue Steel, and the embodi...

 We received an inquiry from a Korean customer. At that time, the customer's request was very complicated and the inquiry content lacked much information. After receiving the inquiry, we immediately got in touch with the customer and clarified the points that the customer focused on. After figure it out by phone that our customer is very strict about the painting job. Based on that we provided a detail solution for customer soon. At the same time, we also provided records of the 2018 letter to the Korean market and shipment records to South Korea. The customer was very satisfied with the receipt of our program and the information provided, and promised to sign a formal contract with Xinyue in China before our Chinese new year. After a month of waiting, the customer delayed the ordering time for several times. At first we thought that the customer gave the order to others. Later, after repeated communicating, the customer finally said the real reason - they are waiting for the gover...

 Every year after January, it will enter the peak period of production. As the temperature get warmer, projects in domestic and foreign markets will start to accelerate.The good market situation makes each department of Xinyue Steel stick to the post every day to serve customers. Recently, Tianjin Xinyue once again exported a batch of German standard rail to southeast Asia.Used for the north-south railway in southeast Asian countries, but also a part of the short size rail, used for the replacement of old rail. With regard to rail, we have very good experience in operation. We have exported rail to other countries for infrastructure construction, and we have had partners come to China to negotiate with us about the material supply of railway projects.In the operation of the export rail, when our inspector tests, he will make detailed mapping and record data according to the drawings, and strictly control the technical parameters marked in each drawing, so as to ensure that the good...

 In February 2019, we received the inquiry from the Thai customer TPC. They wanted the seamless pipe made of JIS G344 STK490 in the Japanese standard, and required fast delivery. We offered the best price and delivery date to the customer immediately. The required seamless tube is mainly used for the Thai Royal Project, TPC is the main contractor to improve this existing dam. The client attaches great importance to the quality of product, and ask the outside coating, but in the hesitation is choose ordinary anti-rust black paint or epoxy resin, Xinyue has provided the coating related technical data to the customer for reference, and introduced the process and application in details for different kind of coating, customers are very satisfied, Xinyue's strength and rich experience in export to win customers recognition. Although our quotation exceeded the client's budget, but the client believed the product quality of xinyue and finally agreed to increase the budget a little. Xin...