Stainless steel pipe is an economical cross-sectional steel, is an important product in the iron and steel industry, can be widely used in life decoration and industry, many people on the market for the production of stair handrails, window, railings, furniture and so on.
There are 201 and 3,042 kinds of materials that are common. Accounting for about 8% 16% of total steel, it has a wide range of applications in the national economy. Because the steel pipe has a hollow section, it is most suitable for the transportation of liquids, gases and solids, and compared with the same weight of round steel, the steel pipe has a large cross-sectional coefficient and a large flexural and torsional strength, so it has also become an important material on various mechanical and architectural structures. Structures and components controlled by stainless steel have a larger cross-sectional modulus than solid components when the weight is equal. Therefore, stainless steel pipe itself is a metal-saving economic cross-sectional steel, it is an important part of high-efficiency steel, especially in the oil drilling, smelting and transportation industries, such as the demand for greater, followed by geological drilling, chemical industry, construction industry, machinery industry, aircraft and automotive manufacturing, as well as boilers, medical equipment, Furniture and bicycle manufacturing and other aspects also need a large number of various steel pipes.
With the development of new technologies such as atomic energy, rocket, missile and aerospace industry, the position of stainless steel pipe in defense industry, science and technology and economic construction is becoming more and more important.
Stainless steel pipe safety and reliability, health and environmental protection, economic application, pipe thin-walled and new reliable, simple and convenient connection method of the development of success, so that it has more irreplaceable advantages of other tubes, engineering applications will be more and more, the use will become more and more popular, the prospects are promising. Because stainless steel already has many of the ideal properties required for building materials, it can be said to be unique in metals, and its development continues. In order to improve the performance of stainless steel in traditional applications, the existing types have been improved, and new stainless steel is being developed to meet the stringent requirements of advanced building applications.
Stainless steel has become one of the most cost-effective materials chosen by architects due to increasing productivity and continuous improvement in quality.
Stainless steel combines performance, appearance and usage characteristics, so stainless steel will remain one of the best building materials in the world. With the implementation of China's reform and opening policy, the national economy has gained rapid growth, and urban housing, public buildings and tourism facilities have been built in large quantities, and new requirements have been put forward for hot water supply and domestic water supply. In particular, water quality problems, people pay more and more attention, the requirements are also constantly improving. Galvanized steel pipe This commonly used pipe, because of its corrosive nature, under the influence of the relevant policies of the State, will gradually withdraw from the historical stage, plastic tubes, composite tubes and copper tubes have become commonly used pipe systems. However, in many cases, stainless steel pipe has more advantages, especially the wall thickness of only 0.6~1.2mm thin-walled stainless steel pipe in the high-quality drinking water system, hot water system and will be safe, hygienic in the first water supply system, with safety and reliability, health and environmental protection, economic application and so on.
Has been proved by domestic and foreign engineering practice is one of the best comprehensive performance of water supply system, new, energy-saving and environment-friendly pipe, is also a very competitive water supply pipe, will certainly play an incomparable role in improving water quality and improving people's living standards. In the building water supply pipe system, because the galvanized steel pipe has ended a century of brilliant history, a variety of new plastic tubes and composite tubes have been rapid development, but a variety of tubes also have some shortcomings to varying degrees, far from fully adapt to the needs of the water management system and the national requirements for drinking water and related water quality. Therefore, the experts predicted that the construction of water supply pipe will eventually be restored to the era of metal tubes.
According to the application experience of foreign countries, thin-walled stainless steel tubes are identified in metal tubes as one of the best tubes for comprehensive performance.
Thin-walled stainless steel pipe, domestic in the late 1990s began to produce, use, is today's pipe field emerging new family, has been widely used in building water supply and direct drinking water pipeline. Thin-walled stainless steel tubes are durable and recognized by the engineering community, and the parties concerned are beginning to reduce wall thickness and reduce prices in order to facilitate further promotion. In particular, small-caliber stainless steel pipe, the price is not high, so the supporting connection method, pipe fittings reliability and price is the main factor to determine its development. Domestic in Sichuan, Guangdong, Zhejiang, Jiangsu and other places have developers independently developed the connection technology and pipe fittings, is a very promising pipe. Ministry of Construction and related departments also attach great importance to this new type of pipe, according to China Technology Market Management Promotion Center, 2001]71 City Word [Document No. A, on the popularization and application of "high diameter wall higher precision stainless steel medium and high pressure water supply pipe and supporting pipe fittings and special technology" notice,
Thin-walled stainless steel pipe The application of this technology and products is of great significance to improve the grade of modern Chinese architecture, improve and guarantee the quality of water supply. At the same time, the Ministry of Construction attaches great importance to the popularization and application of thin The industry standard for thin-walled stainless steel pipes was released and implemented in 2001. Related pipeline engineering technical procedures and installation Atlas, the Ministry of Construction has sent a letter, is being responsible for the preparation of Tongji University. At present, Sichuan, Guangdong, Zhejiang, Jiangsu and other places have professional manufacturers to produce thin-walled stainless steel tubes, products have matured, so the time has come to promote the application.
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