ERW Steel Pipe

 The impact toughness of ASTM standard seamless tube reflects the resistance of the metal to the external impact load. It is generally expressed by the impact toughness value (ak) and the impact energy (Ak), whose units are J/cm2 and J (joules) respectively. Impact toughness or impact energy test (referred to as “impact test”) is divided into three types: normal temperature, low temperature and high temperature impact test due to different test temperatures; according to the shape of the sample notch, it can be divided into “V”-shaped notch and “U” There are two types of notch impact tests. Impact test: use a sample of a certain size and shape (10×10×55mm) (with a “U” or “V”-shaped notch in the middle of the length direction, the notch depth is 2mm) under the impact load on the specified testing machine. Experiment with broken at the notch. A. Shock absorption work Akv(u) The work absorbed when a metal pattern with a certain size and shape is broken under the action of shock load. ...

 In July 2019, Xinyue successfully won the Kuwait Coastal Construction Project through the assistance of one regular Kuwait customer. After receiving the customer's letter of credit at the end of August, we arrange the production according to customer order requirements immediately. The pile pipe of this project includes two parts, one is ERW and the other is LSAW. The length of the pile pipe is 12000mm ~ 18200mm. All ERW parts can be produced directly according to customer requirements. And the wall thickness of both 14 ”and 16” pile pipes are 16mm, which can only be produced by a few factories including Xinyue in China. Due to the limitation of the raw material's length for the LSAW steel pipe, the welding type of the pile pipe over 12 meters are Tee welding. In spite of the many challenges in the production process and also have some special requirements from the customer, we implemented the strictly quality control during the production process, to ensure that all productio...

 Regarding how to achieve the high-quality development of the scrap steel industry, Li Li pointed out that the Ministry of Industry and Information Technology will promote four aspects: The first is to accelerate the optimization of industrial layout. Promote the integrated development of scrap steel recycling, dismantling, processing and distribution, promote in-depth cooperation between upstream and downstream of the industrial chain, encourage enterprises to carry out mergers and reorganizations, increase industrial concentration, and accelerate the construction of a number of regional scrap steel processing and distribution centers, which are in line with the layout of iron and steel enterprises adapt. The second is to vigorously cultivate key enterprises. Strengthen the supervision of the announced enterprises, and establish a dynamic adjustment mechanism of entering and leaving. Promote iron and steel enterprises to lead the establishment of large-scale scrap processing and d...

 A few days ago, the 2019 (eighth) China Iron and Steel Technology and Economy High-end Forum with the theme of "Technology and Efficiency Management, Cost Reduction-New Economy Boosts High-quality Development" was held in Beijing. At the meeting, China Science News was informed that steel companies' green investment in environmental protection will continue to increase. Qu Xiuli, vice chairman of the China Iron and Steel Industry Association, said at the meeting that in the first three quarters, China ’s comprehensive energy consumption per ton of steel, electricity consumption per ton of steel, new water per ton of steel, chemical oxygen demand, and carbon dioxide all fell sharply. The effect is obvious. However, due to the overall increase in steel production and the continuous increase in energy consumption, the pressure on the steel industry will not be reduced overall. With the further implementation of green environmental protection indicators, the green environmen...

 Under the background of advocating low-carbon, energy conservation and environmental protection, all kinds of transportation machinery are also developing in the direction of lightweight. In this paper, the mature TRIP steel production technology is applied to the production of steel pipe, and the thin-walled TRIP steel seamless pipe with ferrite, bainite, residual austenite and a small amount of martensite is successfully produced. Its mechanical properties and internal high pressure forming properties are experimentally studied by means of ordinary tension, pipe end flared, annular tension and hydraulic free expansion, The effects of heat treatment process on microstructure, mechanical properties and internal high pressure forming properties of TRIP steel alloy seamless pipe were analyzed. The main innovative achievements are as follows: (1) TRIP steel thin-walled seamless tubes with chemical compositions of A, B, C, D, E and F were successfully produced by smelting forging pier...

 In recent years, more and more offshore pile pipe and submarine construction projects have appeared in various countries. We believe that Xinyue has been fortunate enough to participate in numerous coastal construction projects and strive to improve and serve more coastal construction projects. At the end of November 2019, Xinyue received an inquiry from Bangladesh about a platform construction project, which was used for the construction of an undersea platform. After half a month's communication with us, the client decided to send us all the most confidential design and construction drawings, which showed how great trust they in us . After several days of careful study, we made the most complete resource integration plan for the customer. Products are relatively miscellaneous, steel plate pipe and pipe fittings, the most powerful advantage of our Xinyue industry and trade, soon in a week to the customer to complete all the products, and promised to be delivered in half a month. ...

 Alloy steel pipes can be used to transport different substances, mainly including the following: 1. Transportation of solid particles and powders – anti-wear, impact resistance, self lubrication, anti adhesion, sanitation and cleanliness, impact absorption, good silencing effect, good resistance to environmental stress cracking, light weight, which can be applied to various industries, such as anti-wear transportation of solid particles and powders in food processing, oil raw material processing, wine making raw materials, medicine, building materials chemical industry, stone ore powder, raw salt and other industries. 2. Slurry transportation – anti-wear, impact resistance, self lubrication, no scaling, good resistance to environmental stress cracking, internal pressure resistance, rust prevention, used in various transportation industries to prolong the service life, slurry solid-liquid mixture transportation in huanjiankang industry, and solve the problems of wear, corrosion and...