steel tube

 The steel pipe is a steel product, and there is a problem of being oxidized and rusted in an open-air environment. The longer it is used, the greater the possibility of rusting. For example, after a carbon steel pipe is rusted, it will be corroded, its performance will decrease, it will become more brittle, and it will break easily, which will bring risks in use. So how to prevent the steel pipe from rusting? You can refer to the following three methods. 1. Alloying to change the internal structure of iron. For example, adding chromium, nickel and other metals to ordinary steel to make stainless steel greatly increases the rust resistance of the steel. 2. Covering a protective layer on the surface of the steel pipe is a common and important method to prevent iron products from rusting. According to the composition of the protective layer, it can be divided into the following types: ① Coating mineral oil, paint or firing enamel, plastic spraying, etc. on the surface of iron product...

 Galvanized pipe generally refers to galvanized steel pipe (GI pipe), which is an important building material, and its advantages and disadvantages need to be considered before using galvanized pipe. Next, it is about the advantages and disadvantages of galvanized steel pipe. Advantages of galvanized steel pipe: 1. Low processing cost: the cost of hot-dip galvanizing and anti-rust is lower than that of other paint coatings. 2. Durable and durable: hot-dip galvanized steel pipe has the characteristics of surface luster, uniform zinc layer, no missing plating, no dripping, strong adhesion and strong corrosion resistance. The anti-rust thickness can be maintained for more than 50 years without repair; in urban or offshore areas, the standard hot-dip galvanized anti-rust layer can be maintained for 20 years without repair. 3. The toughness of the coating is strong: the galvanized layer forms a special metallurgical structure, which can withstand mechanical damage during transportation ...

 There are two main methods of rapid cooling after rolling of hot-rolled seamless pipes: 1. Spray cooling method - the spray cooling method refers to the cooling medium ejected from the nozzle to impact the surface of the hot-rolled seamless steel pipe, taking away the heat of the steel and cooling the steel pipe rapidly. Spray cooling methods are divided into outer surface cooling of hot-rolled seamless steel pipes, inner surface cooling and simultaneous cooling of inner and outer surfaces of steel pipes. For small and medium-sized hot-rolled seamless steel pipes, due to the small inner diameter of the steel pipe, it is difficult to put the header with the nozzle into the pipe, so only external cooling can be used. For large-diameter thick-walled hot-rolled seamless steel pipes, both inside and outside are used to cool them at the same time. This cooling method has a relatively large amount of water and requires a large spray body power pump. The cooling medium is mostly water, an...

 The delivery state of seamless steel pipe (smls) refers to the last process of seamless steel pipe before leaving the factory. This process is of great significance. It determines the performance and quality of seamless steel pipe. Usually, the delivery state of seamless steel pipe is divided into hot rolled state, cold drawn (rolled) state, normalized state, annealed state, high temperature tempered state and solution treatment state. Their characteristics are as follows: 1. Hot rolled state The seamless steel pipe is no longer subjected to special heat treatment after hot rolling or forging, and it is delivered directly after cooling, which is called hot rolling or hot rolling state. The termination temperature of hot-rolled seamless steel pipe is generally 800~900°C, and then it is generally cooled naturally in the air, so the hot-rolled (forging) state is equivalent to normalizing treatment. The difference is that because the termination temperature of hot rolling (forging) va...

Project location：Singapore Product：DI PU PIPE AND FITTINGS Standard and material：BS EN 545 & BE EN 15655 Specifications： DN1000/1100/1200/1800 ,C25/ K12 Usage：Water treatment plant Inquiry time： NOV of 2021 Order time：AUG of 2022 Shipping time：FEB of 2023 Estimated arrival time：MARCH of 2023 First of all, we are very honored to participate in the Singapore Water Treatment Plant construction project. There are altogether 6 water treatment plants in this project, and we are the first phase at present. The inquiry was received at the end of 2021. I participated in the communication of customer drawing design, length and other issues in the early stage. And we also suggested pressure values, confirmed technical data and calculated technical parameters. And then It will take more than half a year to finalize the plan and confirm the purchase in the second half of 2022. This purchase is mainly for cast iron pipes and pipe fittings, which require PU coating on the inside and outside surfa...

 Project location：Songkhla, Thailand Product：WOL SEAMLESS PIPE, EQUAL TEE, WN FLANGE Standard and material：A106 GR.B, A234 WPB, ASTM A105, ASTM 316L Specifications：406.4*12.7*6 SEAMLESS PIPE，406.4*12.7 EQUAL TEE， 16‘’600# WN FLANGE Application：Oil and gas project pipeline maintenance Inquiry time：2022-5-9 Order time：2022-9-20 Shipping time：2023-1-12 Estimated arrival time：2023-3-1 In the middle of 2022, we received an inquiry from our old customer in Malaysia for the overlay welding project, but since this product is a new product for the project, at this time, the customer proposed that their current process for this product is also not very clear. Our business department learned the actual project situation the first time, the company’s business department and technical department immediately held a technical confirmation meeting, and in the first time to give the most reasonable quotation program. At the same time, we actively participated in the customer’s technical meeting: ac...

 Project Location: Mongolia Product：Steel Pipe, Pipe Fitting, Flange, Bolt&Nut, Gasket Specification：Outer Diameter: DN200—DN1600 Length: 12M Standard and Material：ASTM A53 GR B, API 5L GR B Usage: Water Purification Plant Inquiry Time：2022.03 Order Time：2022.10 Shipping Time：2023.02 The signing of this order took as long as half a year. At the beginning of the inquiry, the customer had done in-depth and careful investigation and research on Xinyue, including the examination of various qualification certificates, third-party inspection of factory strength and the history of Xinyue cooperation projects in the affirmation, and finally signed a contract with Xinyue successfully. This project is for Water Purification Plant, so the requirements are very strict, the product range is very wide, including steel pipe, pipe fittings, flanges, bolt nuts and gaskets, basically covers the entire project materials, at the same time, all steel pipes and fittings are required non-toxic and no...

Project location：Australia Product：seamless steel pipe Standard and material：ASTM A106 GR.B Specifications：DN20 – DN80 SCH40/SCH80 Usage：Stock supplement Inquiry time：20221201 Order time：20221202 Shipping time：20230120 Estimated arrival time：20230220 At the beginning of Dec 2022, Tianjin Xinyue again received a supplementary order for seamless steel pipe inventory from regular customers in Australia: the executive standard and material are ASTM A106 gr.b, the diameter range is dn20-dn80, the wall thickness range is Sch 40 – sch80, the length is 6m, a total of more than 10 specifications and about 20 tons. Although the order volume is small and the specifications are complicated, Tianjin Xinyue team has never despised any order and customer. Thanks to the strong resource integration strength, Tianjin Xinyue reported all the dimensions required by the customer as soon as receiving the order, and the customer readily confirmed the contract in the 2nd day. https://www.xysteelpipe.com/astm-...

 The steel pipe is a steel product, and there is a problem of being oxidized and rusted in an open-air environment. The longer it is used, the greater the possibility of rusting. For example, after a carbon steel pipe is rusted, it will be corroded, its performance will decrease, it will become more brittle, and it will break easily, which will bring risks in use. So how to prevent the steel pipe from rusting? You can refer to the following three methods. 1. Alloying to change the internal structure of iron. For example, adding chromium, nickel and other metals to ordinary steel to make stainless steel greatly increases the rust resistance of the steel. 2. Covering a protective layer on the surface of the steel pipe is a common and important method to prevent iron products from rusting. According to the composition of the protective layer, it can be divided into the following types: ① Coating mineral oil, paint or firing enamel, plastic spraying, etc. on the surface of iron product...

 There are many materials and types of steel pipes on the market today, and carbon steel pipes and galvanized steel pipes are two of the more common ones. So, what are the differences between carbon steel pipes and galvanized steel pipes? Carbon steel pipe vs Galvanized steel pipe: 1. Different production process Carbon steel pipes are made of steel ingots or solid round steels that are perforated to form capillary tubes, and then made by hot and cold rolling and cold drawing. Carbon steel pipe has a key position in the domestic steel pipe field. Galvanized steel pipes use hot-dip galvanizing. The galvanized steel pipe should be tested for the balance of the galvanized layer. 2. Different materials Carbon steel pipe is an alloy material mainly containing carbon and iron. It has excellent mechanical properties and processing properties, but poor corrosion resistance. It is often used in pipelines for conveying fluids or gases. Galvanized steel pipe is a kind of pipe that has been el...