Comment and analysis: China's stainless steel pipe market and its promotion and application

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 of other pipes, and more and more applications in engineering , The use will become more and more popular, and the prospect is promising.

With the implementation of my country's reform and opening policy, the national economy has achieved rapid growth, and a large number of urban residential buildings, public buildings and tourist facilities have been built, and new requirements have been put forward 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 of the water supply system. It is also a very competitive water supply pipe, which will definitely play a role in improving water quality and improving people’s living standards. Comparable role.

In the building water supply piping system, as the galvanized steel pipe has ended its 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 complete. Meet the needs of water supply piping system 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.

The time for the promotion and application of domestic thin-walled stainless steel pipes is ripe

Thin-walled stainless steel pipes, which were only produced and used in China in the late 1990s, are a newcomer in the field of pipe materials and have been widely used in building water supply and direct drinking water pipelines.

The durability of thin-walled stainless steel pipes has been recognized by the engineering community, and relevant parties are starting to reduce the wall thickness and lower the price to facilitate further promotion. Especially the small-caliber stainless steel pipes are not expensive, so the matching connection method, the reliability of the pipe fittings and the price are the main factors that determine its development. Domestic developers in Sichuan, Guangdong, Zhejiang, Jiangsu and other places have independently developed connection technology and pipe fittings, which are promising pipes. The Ministry of Construction and related departments also attach great importance to this new type of pipe. According to the China Technical Market Management Promotion Center and the Guokeshizi [2001] No. 71 document, on the promotion and application of high-diameter-to-wall ratio high-precision stainless steel medium and high-pressure water supply pipes and supporting pipe fittings It is learned from the notice of special technology that the popularization and application of thin-walled stainless steel pipe technology and products are of great significance for improving the quality of modern buildings in my country and improving and ensuring the quality of water supply.

At the same time, the Ministry of Construction attaches great importance to the promotion and application of thin-walled stainless steel pipes. The industry standard of 'Thin-Wall Stainless Steel Water Pipe' was issued and implemented in 2001. The relevant pipeline engineering technical regulations and installation atlases have been issued by the Ministry of Construction and are being compiled by Tongji University. At present, there are professional manufacturers in Sichuan, Guangdong, Zhejiang, Jiangsu and other places to produce thin-walled stainless steel pipes. The products have matured. Therefore, the time for popularization and application has arrived.