Gao Yunhu, director of the Department of Energy Conservation and Comprehensive Utilization of the Ministry of Industry and Information Technology, said on the 22nd that China will vigorously promote the comprehensive utilization of scrap resources and study industrial policies that are conducive to the recycling, scale and high-quality utilization of scrap steel enterprises. Continue to increase the application rate of scrap steel by encouraging steel companies to improve process technology and process structure, and increase the proportion of electric furnace steel.

　　At the "Meet the 2019·Yangcheng Hui Commodity Investment Forum" held in Guangzhou on December 23, the guests expressed that the Chinese economy still cannot get rid of the two pillars of real estate and infrastructure, and the trend of rebar and real estate is the same. The price of rebar investment in infrastructure investment is often the role of the bottom and the icing on the cake. In 2019, the supply of steel is in short supply, and the supply and demand are overbalanced. The stage may be oversupply.

　　Jingchuan, deputy general manager and chief economist of Zhongda Futures, said at the "2018 Black Futures Forum" that the black department will begin to weaken at the end of the first quarter of next year.

1. Forging method: use a swaging machine will be washed out, the pipe end or part of reduce diameter, commonly used type of forging machineRotary, connecting rod type, roller type.2. Stamping method: on the punch with a tapered core of tube end expanding to the required size and shape.

Grain refinement is also an effective way to improve strength and toughness of steel, the method of fine grains are mainly deformation processing and chemical add 2 broad categories, deformation processing method in the field of iron and steel production is mainly fine grains by controlled rolling and controlled cooling technology;

On November 21, 2018, the Mexican ministry of economic affairs in Mexico's official communique issued announcement, announced on Chinese seamless steel tube (Spanish: tuberiadeacerosincostura) start the sunset anti-dumping review of investigation.In the case of dumping investigation period for October 1, 2017 to September 30, 2018,

On December 9, the branch of China petrochemical gas natural gas pipeline in guangxi with the China national petroleum pipeline visitor station connectivity project, formal oil in pipeline gas supply to China.

The sustained supply side structural reforms, resolutely "capacity".Executives from domestic steel mills and its upstream and downstream enterprises, as well as representatives of departments, industry associations, research institutions, gathered in 22 to 23, "steel capital" anshan city in liaoning province, summarizes the development experience from the course of reform and opening-up, the pulse industry trend in the future.

Polyurethane direct buried seamless insulation pipe has become a mature advanced technology in developed countries. China's heating engineering technicians have passed this research to promote this technology to promote the development of domestic pipe network technology to a higher level. Polyurethane direct-buried insulation tube is made of high-performance polyether polyol composition and multiple methyl polyphenyl polyisocyanate as raw materials, and then chemically foamed. It is widely used in indoor and outdoor pipelines and central heating. Pipe, chemical, pharmaceutical industry pipelines and other insulation, cold preservation projects. Polyurethane polyurethane direct buried seamless insulation pipeshould pay attention to the installation and explanation:

Insulation steel pipe high-density polyethylene polyurethane insulation pipe, polyurethane direct-buried insulation pipe is widely used in liquid and gas transportation pipe network, chemical pipeline insulation engineering petroleum, chemical, centralized heating and heating network, central air-conditioning ventilation pipe, municipal engineering. The high temperature prefabricated direct buried thermal insulation pipe is a direct buried prefabricated thermal insulation pipe with good thermal insulation performance, safe and reliable, and low engineering cost. It effectively solves the problem of insulation, sliding lubrication and waterproofing of exposed pipe ends of 13O °C-6OO °C high temperature heat transfer prefabricated direct buried insulation pipe in urban central heating.

The prefabricated polyurethane direct buried thermal insulation pipe not only has the advanced technology and practical performance which are difficult to compare with the traditional trench and overhead laying pipeline, but also has significant social and economic benefits, and is also a powerful measure for heating energy saving. The adoption of direct buried heating pipeline technology indicates that the development of China's heating pipeline technology has entered a new starting point. With the further improvement and development of this advanced technology, it is imperative to directly replace the trench and overhead of the heating pipeline.

On November 12, the European Commission made a preliminary ruling on anti-dumping investigations on seamless steel pipe products originating in China, and decided to implement a six-month temporary anti-dumping measure. The head of the Trade Relief and Investigation Bureau of the Ministry of Commerce made a statement on this.

　　The proper selection and use of the electrode directly affects the chemical composition and performance of the weld, which is an important part of the preparation of large-diameter seamless steel pipe welding. Choosing the right electrode requires a comprehensive consideration of various factors, and sometimes it needs to be tested and verified before it can be finalized. The aspects to be considered are as follows: the performance requirements of the weld metal , the shape of the electrode, the rigidity and the position of the weld, the crack resistance of the weld metal, the processability, equipment and construction conditions, and economic rationality.

Recently, the problem of ballpoint pens has been hot in the circle of friends. This small situation also reflects the pace that domestic steel should move toward the high end. Of course, the 45th seamless steel pipe product should also go higher and better!

On April 15th, the price of 45# thick-walled seamless steel pipe in Liaocheng Market accelerated down. With the collapse of the market, the market is trampled heavily, and under the current big ups and downs, demand is difficult to release.

　　45# Seamless steel pipe steel RH desulfurization and steel liquid purification technology. With the needs of ultra-low carbon steel production, the function of RH equipment has been continuously developed and improved. From the initial single-stage molten steel degassing, it has gradually developed to meet deep decarburization, degassing, chemical heating, purification of molten steel, alloying adjustment, etc. The functional vacuum refining device can stably produce ultra-low carbon steel with a finished carbon content of less than 20×10-4%, and the extremely low carbon content reaches 8×10-4%.

　　Now as a qualified 45# seamless steel pipe buyer, it is necessary to have the ability to identify shoddy and inferior. The following is a brief introduction to some of the small-scale technology to identify the inferior steel pipe. The alloy pipe of various specifications and materials is operated all the year round. The superior product has 45# steel pipe. , 45# seamless steel pipe, 45th steel pipe, 10th steel pipe, 35th steel pipe. In addition, our company has established long-term friendly cooperative relations with major steel mills in Tianjin, Baosteel, Yegang, Baotou Steel and Chengdu, and has become the sales agent of many steel mills. Thousands of various sizes of steel pipes are used in various fields of the national economy such as machinery, chemical industry, power plants, aerospace, public utilities, shipbuilding, oil fields, etc., and grow together with more than 6,000 customers. Clever.

At present, there is a saying in the market: "45# seamless steel pipe is the price than the cold weather, the demand is colder than the price, the business mentality is colder than the demand. It does not fall, the shipment does not move; Endless..."

The difference between the size of SC and DN of galvanized steel pipe: 1.SC generally refers to the welded steel pipe , the language STEEL CONDUIT, is a shorthand for the material.

Galvanized pipe, also known as galvanized steel pipe, is divided into hot-dip galvanizing and electro-galvanizing. The hot-dip galvanizing layer is thick, with uniform coating, strong adhesion and long service life. The cost of electroplating is low, the surface is not very smooth, and its corrosion resistance is much worse than that of hot-dip galvanized pipes.