Stainless steel pipe is a kind of economical cross-section steel. It is an important product in the iron and steel industry. It can be widely used in life decoration and industry. Many people on the market use it to make stair railings, window guards, railings, furniture, etc. There are two common materials, 201 and 304.
It accounts for about 8% to 16% of the total amount of steel, and it has a wide range of applications in the national economy. Because the steel pipe has a hollow section, it is most suitable as a pipeline for liquids, gases and solids. At the same time, compared with round steel of the same weight, the steel pipe has a large section coefficient and high bending and torsion strength, so it has become a variety of machinery and building structures. Important material on the site. Structures and parts made of stainless steel pipes have a larger section modulus than solid parts under the condition of equal weight. Therefore, stainless steel pipe itself is a kind of economical section steel that saves metal. It is an important part of high-efficiency steel, especially in the industries of oil drilling, smelting and transportation. The second is geological drilling, chemical industry, construction industry, machinery Industry, aircraft and automobile manufacturing, as well as boiler, medical equipment, furniture and bicycle manufacturing also require large amounts of various steel pipes. With the development of new technologies such as atomic energy, rockets, missiles, and aerospace industries, stainless steel pipes have become more and more important in the defense industry, science and technology, and economic construction.
Stainless steel pipes are safe, reliable, hygienic, environmentally friendly, economical and applicable. The thin-walled pipes and the successful development of new reliable, simple and convenient connection methods give it more irreplaceable advantages for other pipes, and more and more applications in engineering , The use will become more and more popular, and the prospects are promising.
As stainless steel has many ideal properties required by building materials, it can be said to be unique among metals, and its development continues. In order to make stainless steel perform better in traditional applications, the existing types have been improved, and in order to meet the strict requirements of advanced construction applications, new stainless steels are being developed. Due to continuous improvement in production efficiency and continuous improvement in quality, stainless steel has become one of the most cost-effective materials chosen by architects.
Stainless steel combines performance, appearance and use characteristics, so stainless steel will still be one of the best building materials in the world.
With the implementation of China’s reform and opening up policy, the national economy has achieved rapid growth, and a large number of urban residential buildings, public buildings and tourist facilities have been constructed, which put forward new requirements for the supply of hot water and domestic water. In particular, people are paying more and more attention to water quality issues, and their requirements are constantly increasing. Due to its corrosiveness, galvanized steel pipe will gradually withdraw from the stage of history under the influence of relevant national policies. Plastic pipes, composite pipes and copper pipes have become common pipe materials for piping systems. However, in many cases, stainless steel pipes are more advantageous, especially thin-walled stainless steel pipes with a wall thickness of only 0.6～1.2mm in high-quality drinking water systems, hot water systems, and water supply systems that put safety and hygiene in the first place. It is safe and reliable, hygienic and environmentally friendly, economical and applicable. It has been proved by domestic and foreign engineering practice to be one of the new, energy-saving and environmentally-friendly pipes with the best comprehensive performance for the water supply system. It is also a very competitive water supply pipe. Comparable role.
In the building water supply piping system, as the galvanized steel pipe has ended a hundred years of glorious history, various new plastic pipes and composite pipes have been developed rapidly, but various pipes still have some shortcomings to varying degrees, which are far from being fully adapted to water supply pipes. Department’s needs and the country’s requirements for drinking water and related water quality. Therefore, relevant experts predict: Building water supply pipes will eventually return to the era of metal pipes. According to foreign application experience, thin-walled stainless steel pipe is recognized as one of the pipes with the best comprehensive performance among the metal pipes.
Promote
Thin-walled stainless steel pipes were produced and used only in the late 1990s in China. They are a newcomer in the field of pipe materials and have been widely used in building water supply and direct drinking water pipelines.
Thin-walled stainless steel pipes are durable and have been recognized by the engineering community, and the relevant parties are starting to reduce the wall thickness and lower the price to facilitate further promotion. Especially for small-caliber stainless steel pipes, the price is not high. Therefore, the matching connection method, the reliability of the pipe fittings and the price are the main factors that determine its development. The Ministry of Construction and relevant departments also attach great importance to this new type of pipe. According to the China Technology Market Management Promotion Center and the Guokeshizi [2001] No. 71 document, the promotion and application of “high-diameter wall ratio high-precision stainless steel medium and high-pressure water supply pipes and supporting It was learned from the notice of “Pipe Fittings and Special Technology” that the promotion and application of thin-walled stainless steel pipe technology and products is of great significance for improving the quality of modern Chinese architecture and improving and ensuring the quality of water supply.
