Seamless Stainless Steel Pipes Market Research (2023)

January 9, 2023


Briefly expounds on the current development status of the stainless steel pipe industry, including the output and distribution of stainless steel pipes, and the innovation and development of enterprises.

This paper focuses on the application status of stainless steel pipes in the field of water pipes, including the production status, global application and popularization, the application of ferritic stainless steel in water pipe material selection, and the current problems in the stainless steel water pipe industry.

Keywords: stainless steel pipe, water pipe, ferritic stainless steel, material selection.

Stainless steel pipe production process

Stainless steel seamless steel pipe

The production process of stainless steel seamless steel pipe is completed by piercing, cold working, heat treatment, pickling and inspection.

Perforated blank pipe is the first deformation process in the seamless steel pipe production process.

There are many methods for the production of waste pipes: two-roll or three-roll cross-rolling piercing, hydraulic punching, push-rolling piercing, extrusion machine extrusion.

At present, the methods of cross-rolling two-roll perforation and extruder extrusion are mainly used. Cold working includes cold rolling, cold drawing, cold extrusion and spinning, etc. The cold working process generally adopts a combination of rolling and drawing. At present, most domestic heat treatment adopts roller hearth furnace and box furnace, and TISCO adopts hydrogen protection solution treatment furnace.

Stainless steel welded pipe

There are continuous production lines (ERW) and discontinuous production lines (UOE, JCOE) for stainless steel welded pipes.

The ERW unit is to divide the steel coil into the width of the steel pipe by the slitting machine, and then undergo W forming, welding, weld grinding, sizing, weld rolling, hydrogen protection induction heating treatment and sawing, flaw detection and hydraulic test (underwater air pressure), pickling is completed offline.

Welding includes hydrogen arc welding, plasma welding and plasma plus argon arc welding. Welding guns include single gun, double gun and three guns. Generally, laser welding or submerged arc welding is not recommended. It is not correct to use high frequency welding for industrial stainless steel welded pipes. practice.

UOE or JCOE is to cut the steel plate according to the expanded size of the steel pipe, and then first arc the two edges through the press according to the pipe diameter R, then U-shaped by the press, and O-shaped welded by the joint machine, after O-formed, pipe expansion, The production process of welded pipes including heat treatment, shaping, straightening, inspection and warehousing.

Stainless steel water pipe application

Advantages of stainless steel water pipes

  • Stainless steel pipe material is lead-free, non-toxic, no plasticizer, no harm to human body,
  • Smooth inner wall, no regenerative bacteria, no scaling, no aging, basically no corrosion
  • It can be used in the environment of -40 ~ 300 ℃, the application pressure can reach 50 kg without leakage, and it has the same service life as the building

It has been proved by engineering practice at home and abroad that it is the best comprehensive performance, environmental protection and energy-saving pipe among water supply pipes. Thin-walled stainless steel pipes are the future trend of pipe use and development. Now it can be predicted that building water supply pipes will eventually return to the era of metal pipes.

Current stainless steel water pipe application fields

The application of stainless steel pipes started from the direct drinking water system, and was first used in star hotels and high-end residences.

In recent years, the field of application has been continuously expanded, such as

  • Building water and hot water supply systems.
  • Medical gas delivery system.
  • Siphon roof rainwater drainage system (mostly used in airport terminals).
  • Fire water supply system (only stainless steel pipes are allowed for high and medium pressure water mist fire extinguishing systems).
  • Applications in gas systems, heating systems, and industrial media delivery systems continue to expand.
  • Especially secondary water supply and distribution pipelines, water mist fire extinguishing systems and siphon roof rainwater drainage systems, etc.


From the 1950s to the 1970s, the main materials of water supply pipes in Japan were plastic and steel-plastic composite pipes, which caused serious water leakage, with the leakage rate as high as 40% to 45% at one time, and the water pollution problem was obvious.

The Tokyo Water Supply Bureau spent 10 years doing research and testing, and found that 60.2% of the water leakage was caused by the insufficient strength of the water pipe material and the impact of external forces.

The Japan Water Association suggested improving water pipe materials and connection methods. In 1980, Japan formulated a series of standards for industrial stainless steel pipes and their connections. In 1999, the Tokyo Water Supply Bureau adopted 316 stainless steel bellows as a standard material, and stainless steel used as water supply pipes for tap water and water supply pipes in buildings entered the track of standardization.

According to statistics from the Tokyo Waterworks Department, the market penetration rate of stainless steel rose from 11% in 1982 to over 90% in 2000. At present, the penetration rate of stainless steel water supply pipes in Tokyo, Japan is nearly 100%, and all residential areas are equipped with stainless steel pipes.

South Korea

From 1993 to 2005, the market penetration rate of stainless steel water pipes in Seoul, South Korea increased from 32% to nearly 90%.

United States

  • In 1960, New York, USA began to use stainless steel water pipes.
  • In 1990, 316L stainless steel was adopted on a large scale for water supply pipes in New York City.
  • In 1996, the United States promulgated the Safe Drinking Water Act, requiring that metal pipes used for drinking water must be made of stainless steel or ductile iron, and stainless steel is the first choice for water supply pipes entering high-rise buildings.
  • At present, more than 30 water plants in the United States use stainless steel water supply pipes.


  • Germany began to adopt stainless steel water pipes on a large scale in 1980, and all of them are made of 316L.
  • Since 1995, cities in Italy have replaced water supply pipes with stainless steel.
  • Due to the soft water quality in the United Kingdom, all hospital water pipes in Scotland have been replaced with stainless steel.
  • The city of Karlskoga, Sweden replaced all buried water mains with 316 stainless steel pipes.


Optional materials for stainless steel water pipes include 304, 304L, 316, 316L, 445J2, etc. When selecting materials, mainly refer to the concentration of chloride ions in the water. Refer to Table 3 for material selection based on the concentration of chloride ion corrosion resistance. When selecting materials for water delivery pipes, materials that are resistant to corrosion at higher chloride ion concentrations are generally selected. For salty tide pipes, materials with resistance to chloride ion concentration above 600×10-6 should be selected.

In 2020, there are about 70 domestic water supply companies that are using or plan to start using stainless steel water pipes in the near future, and the purchase amount is expected to be 1.3 billion yuan. The consumption of stainless steel water pipes in 2020 is about 250,000 tons.

Ferritic stainless steel water pipe

Ferritic stainless steel is superior to austenitic stainless steel in resistance to pitting corrosion, crevice corrosion and stress corrosion cracking. The difference between ferritic stainless steel and austenitic stainless steel is only in performance and use. Water supply and drainage systems are more suitable for ferritic stainless steel pipes. Ferritic stainless steel mainly has the following characteristics:

  • It is magnetic.
  • The thermal expansion rate is low, and the degree of expansion when heated is only 60% to 70% of that of austenitic stainless steel, which is similar to that of ordinary steel.
  • High-temperature oxidation resistance is good, and the tendency of surface oxidation and spalling is less than that of austenitic stainless steel.
  • The thermal conductivity is high, 1.3~1.6 times that of austenitic stainless steel, and the heat conduction is more uniform than that of austenitic stainless steel.
  • Ferritic stainless steel containing stabilizing element Nb has good creep resistance, and the strain under long-term stress is smaller than that of austenitic stainless steel.
  • Easier to machine than austenitic stainless steels.
  • The deformation recovery tendency during cold working deformation is smaller than that of austenitic stainless steel, the deep drawing performance is worse than that of austenitic stainless steel, and the bulge forming performance is not as good as that of austenitic stainless steel.
  • High yield strength (comparable to carbon steel). The yield strength of some high-chromium ferritic stainless steels can reach twice that of 304 stainless steel, and its elongation is only about 60% of that of 304 stainless steel, but it is also acceptable for engineering applications.
  • Ferritic stainless steel is different from austenitic stainless steel. It has no stress corrosion tendency in chlorine-containing aqueous media. Some grades of ferritic stainless steel can also achieve immunity in high-concentration oxide media.
  • It has good uniform corrosion resistance, pitting corrosion resistance and crevice corrosion resistance, and its corrosion resistance depends on the Cr and Mo content in the steel. The value of PRE (Pitting Corrosion Resistance Equivalent) is usually used to determine the resistance to localized corrosion.
  • Ferritic stainless steel does not contain Ni, and some special grades contain only a small amount of Ni. In terms of cost performance, its cost is relatively low, and it is not affected by Ni price fluctuations.

Typical ferritic stainless steel water pipes

According to the performance characteristics of ferrite, the grades of ferritic stainless steel recommended for use in home improvement water supply pipes mainly include: 00Cr18Mo2Ti, 00Cr22Mo1Nb (Ti), 00Cr22Mo2Ti (Nb), 019Cr24Mo 2NbTi, now focus on chemical composition, mechanical properties, resistance Corrosion performance, welding performance medium, etc. introduce the performance of various steel types, which is convenient for comparison with austenitic stainless steel such as 304 (0Cr18Ni9), 316 (0Cr17Ni12-Mo2) steel, etc. It is more reasonable to choose ferritic stainless steel.

High purity 00Cr18Mo2Ti

Chemical composition

The chemical composition of high-purity 00Cr18Mo2Ti steel is shown in the figure below.

chemical composition of high-purity 00Cr18Mo2Ti

Mechanical properties

The mechanical properties of high-purity 00Cr18Mo2Ti steel at room temperature are shown in the figure below.

Mechanical properties of high-purity 00Cr18Mo2Ti steel at room temperature

Pitting resistance

The pitting corrosion resistance of 00Cr18Mo2Ti is generally equivalent to that of 0Cr17Ni12Mo2. The pitting test is carried out in 5% FeCl3 +0.05 mol/L HCl solution. The relationship between the corrosion rate and the solution temperature is shown in the figure below, and its pitting potential is equivalent to that of 0Cr17Ni12Mo2.

Stress corrosion resistance

The stress corrosion resistance of 00Cr18Mo2Ti is better than that of 0Cr17Ni12Mo2 stainless steel. The stress corrosion resistance of 00Cr18-Mo2Ti in boiling 42% MgCl2 solution is shown in the table below.

Welding performance

00Cr18Mo2Ti can be welded by the conventional method of welding stainless steel. The corrosion resistance of the welded state is equivalent to that of the base metal, and it is suitable for domestic water supply pipes.


00Cr22Mo1Nb (Ti) is a ferritic stainless steel with a Cr content of not less than 21% and a Mo content of about 1%. Its corrosion resistance is between that of 0Cr18Ni9 and 0Cr17Ni12Mo2 steels; Inexpensive material to replace 316L (00Cr17Ni 14Mo2) stainless steel in aqueous solution.

Chemical composition

The chemical composition of 00Cr22Mo1Nb (Ti) steel is shown in the table below.

Mechanical properties

The room temperature mechanical properties of 00Cr22Mo1Nb (Ti) annealed steel sheet (850 °C for 5 min, air cooling) are shown in Table 8. The strength and plasticity of the steel are high, the elongation is above 40%, and the anisotropy is not obvious. In addition, it also has good impact toughness at room temperature, good cold formability, and no obvious anisotropy.

Corrosion resistance

Electrochemical samples were taken from a 4 mm thick hot-rolled steel plate that was air-cooled at 870 °C for 10 minutes, and the pitting potential was measured. The pitting potential of Cr22Ti ferritic stainless steel with different molybdenum content in 3.5% NaCl solution is shown in the figure below Show.

In 10% FeCl3·6H2O solution, the pitting corrosion resistance (corrosion rate) of 00Cr22Mo1Nb(Ti), 00Cr22Mo1.5Ti, 00Cr22Mo2.5Ti and 00Cr17Ni12Mo2 steel is shown in the figure below. The stress corrosion cracking test was carried out in boiling CaCl2 and boiling 26% NaCl solutions using O-type samples of 2 mm×10 mm×120 mm (heated at 870 °C for 10 min, air cooling). The results showed that 00Cr22Mo1Nb (Ti) has excellent Stress corrosion cracking resistance. The stress corrosion cracking resistance of 00Cr22Mo1Ti, 00Cr22Mo2Ti, 0Cr17Ni12Mo2 steel in chloride solution is shown in the figure below.

Welding performance

00Cr22Mo1Nb (Ti) cold-rolled annealed steel plate has good welding performance, and can be welded by the common method of welding stainless steel. It does not need to be preheated before welding. The mechanical properties after welding are shown in Table 10. The elongation is not lower than that of the base metal. Other properties are the same as The parent material is similar. 00Cr22Mo1Nb (Ti) steel is suitable for domestic water supply pipes.


00Cr22Mo2Ti (Nb) is a steel grade with better pitting corrosion resistance and stress corrosion resistance than 0Cr17Ni12Mo2, and its annealed state is almost immune to stress corrosion in aqueous chloride solution.

Chemical composition

00Cr22Mo2Ti (Nb) can be single-stabilized by Nb and Ti, or double-stabilized by Nb+Ti. The steel has the best toughness when it is stabilized by Nb, and the toughness of the steel is the worst when it is stabilized by Ti. The toughness of the steel is in the middle during Nb+Ti double stabilization, and Ti is beneficial to the toughness after welding. Therefore, Nb+Ti double stabilization measures are usually used to ensure the toughness of the steel and prevent the post-weld toughness from being significantly reduced.

Mechanical properties

00Cr22Mo2Ti (Nb) cold-rolled annealed sheet has excellent cold forming properties.

Corrosion resistance

The corrosion resistance of 00Cr22Mo2Ti (Nb) steel is much better than that of 0Cr18Ni9 steel and significantly better than that of 0Cr17Ni12Mo2 steel in the accelerated spray test (spray in seawater at room temperature → dry at 60 °C for 30 min → wet at 50 °C, 100% RH for 30 min) ,As shown below.

These data show that the performance of 00Cr22Mo2Ti (Nb) steel is significantly better than that of 0Cr17Ni12Mo2 steel, and its crevice corrosion resistance is also better than that of 00Cr17Ni14Mo2 steel. .

Welding performance

The mechanical properties of TIG (Tungsten Inert Gas Welding, non-metal inert gas shielded arc welding) welded joints are close to those of the base metal (Table 12). 00Cr22Mo2Ti (Nb) steel is especially suitable for home improvement water supply pipes, and when the Cr content is higher than 22% and the Mo content is not less than 2%, it can also be used for floor heating pipes.


019Cr24Mo2NbTi steel is an ultra-low carbon, nitrogen-rich molybdenum-containing ferritic stainless steel stabilized by Ti. It has excellent resistance to pitting corrosion and crevice corrosion in chloride-containing media; it has good strength, toughness and Weldability; good wear resistance, wear-resistant iron performance loss is 1/3 of titanium, 1/22 of brass.

019Cr24Mo2NbTi steel is a newly developed steel type in my country, and it is mainly used in urban water medium environments with chloride ion content below 5 000 mg/L.

019Cr24Mo2NbTi thin-wall stainless steel straight seam welded steel pipe can replace copper B10 seamless pipe and 00Cr17Ni14Mo2, 00Cr19Ni13Mo3 (317L) austenitic stainless steel pipe in the environment with high chloride ion content.

Chemical composition

The chemical composition requirements of 019Cr24Mo2NbTi steel are shown in the figure below.

Mechanical properties

The mechanical properties of 019Cr24Mo2NbTi steel are shown in the table below.

Corrosion resistance

The measurement results of the pitting corrosion resistance potential of 019Cr24Mo2NbTi steel are shown in Table 15. Under standard conditions, the pitting corrosion resistance of 019Cr24Mo2NbTi steel is much higher than that of 00Cr17Ni14Mo2 and 00Cr19Ni13Mo3, and there is no significant difference with 2205 steel. The higher the pitting corrosion potential, the better the pitting corrosion resistance.

Welding performance

019Cr24Mo2NbTi cold-rolled annealed sheet has good weldability. It adopts conventional TIG welding for welding stainless steel. There is no need for preheating before welding and no heat treatment after welding.

Problems that should be paid attention to when choosing ferritic stainless steel


  • Ferritic stainless steel is prone to wrinkle defects, and thin plate (strip) manufacturers should control it through composition control and optimization of production processes and end-user improvement processes.
  • The expansion coefficient of ferritic stainless steel is similar to that of ordinary steel, which is 60% of that of austenitic steel. Therefore, the mold technology of austenitic materials cannot be completely used in the production of pipe fittings, and should be developed separately.
  • The expansion coefficient of ferritic stainless steel is similar to that of ordinary steel, which is 60% of that of austenitic steel. Therefore, the mold technology of austenitic materials cannot be completely used in the production of pipe fittings, and should be developed separately.
  • Due to the size effect of DBTT (Ductile-to-Brittle Transition Tem perature, ductile-to-brittle transition temperature), the DBTT of thin section is significantly lower than that of thick section material, and high chromium molybdenum ferritic stainless steel is especially sensitive, so the directly applied plate The thickness should be limited to not more than 6 mm.
  • The welding at the work site should be fully protected, and the welding personnel should correctly and proficiently master the welding process requirements and operating techniques.

Pipe and fitting form

Tube style

Stainless steel water pipes in the current market are divided into stainless steel seamless pipes and stainless steel welded pipes. The market price of stainless steel seamless pipe is higher than that of welded pipe, and its use advantage is more obvious. Stainless steel seamless pipe and stainless steel welded pipe are compared in the table below.

Fitting style

At present, the stainless steel water pipes on the market are mainly connected by double clamping fittings. In addition, there are also some self-developed connection forms with reliable connections, such as convex fittings.

Problems in the development of stainless steel water pipes

Standard question

The application and promotion of stainless steel pipes and quality assurance are inseparable from standardization, but judging from the existing standards in the stainless steel water pipe industry, there is a lack of special stainless steel pipe standards for water supply and drainage. Due to the lack of product standards for this range, the problem is that the products of stainless steel pipe manufacturers have poor interchangeability.

This has affected the application of stainless steel water pipes to a certain extent, and has become a “bottleneck” in the development and application of stainless steel water pipes. It is urgent to formulate national standards covering the main connection mode products for conveying water medium, but this is related to the production molds of various enterprises, and there is certain resistance. And who will take the lead in formulating the standard will inevitably involve the interests of all parties.

Product technical issues

First of all, it is manifested in the diversification of connection methods. Due to the material characteristics of stainless steel pipes, the connection methods are diverse.

Secondly, some stainless steel water pipe manufacturers have thinned the wall of stainless steel water pipes in order to reduce costs. This further exacerbates the diversification of stainless steel water pipe connection methods.

Third, the problem of stainless steel water pipe fittings. Stress corrosion will occur when stainless steel bolts and stainless steel nuts are tightened, causing the bolts and nuts to corrode together and cannot be disassembled. Thus, two solutions emerged:

  • Carbon steel fasteners are used. In order to prevent the potential difference corrosion between carbon steel fasteners and stainless steel flanges and stainless steel hoops, rubber sleeves or plastic gaskets are used to separate the two. The process is complicated.
  • Fasten with 304 bolts and 316 nuts.

Supporting installation problems

The use of thin-walled stainless steel pipes in the final customer is a systematic project, which requires supporting pressing tools and system installation procedures to ensure installation quality.

However, the existing professional installers in the market are slightly scarce compared with the market demand.

Authentication problem

Although there are many manufacturers of stainless steel water pipes, the quality of the products is uneven, and most of them are small enterprises with low-quality control levels, cutting corners in production, and reducing key processes such as non-destructive testing and heat treatment.

These problems caused corrosion and leakage of the product during use, which affected the reputation of thin-walled stainless steel pipes in the market. That is the lack of systematic and mature product certification.

Status quo of stainless steel water pipe production enterprises

Distribution and Development (China)

After nearly 20 years of exploration and development, China’s stainless steel water pipe industry has already possessed the production technology service ability to adapt to the rapid growth of market demand. At present, the main production enterprises in the country are concentrated in Zhejiang, Jiangsu, Guangdong, Sichuan, Shandong and other places.

All enterprises basically have the production capacity of pipe fittings. Due to the large number of types, specifications and series of pipe fittings, the large investment in production equipment and the large number of workers, many enterprises cannot complete the complete independent matching of pipe materials, and there are mutual procurement and matching among enterprises; In addition, some production enterprises do not directly enter the terminal market, but rely entirely on the calendering processing and production cost advantages of raw material plates to carry out OEM production for other enterprises.

According to statistics from the Water Supply and Drainage Equipment Branch of China Construction Metal Structure Association, the demand for raw materials in China’s stainless steel water pipe industry will be about 200,000 tons in 2020, and it will grow at a rate of about 10% every year. The industry has a bright future. In recent years, China’s stainless steel pipe industry has developed rapidly. The number of thin-walled stainless steel pipe manufacturers has increased from more than 100 in 2018 to nearly 250 in 2020. New entrants have the following situations:

  • Water-related production enterprises entered the stainless steel water pipe industry.
  • The transformation of decorative pipe enterprises involved in the stainless steel water pipe industry.
  • Stainless steel industrial parks around the world give full play to their advantages in raw materials and attract investment to establish new enterprises.
  • Traditional industrial stainless steel pipe manufacturers entered the civil water supply industry.
  • Foreign brands have laid out China’s stainless steel water pipe industry in advance.
  • Steel mills directly invest in building factories.

Production and operation

In the early marketing period, due to the small number of participating companies, although the market demand is small, the operating profit margin is high.

With the hot market in the past two years, leading enterprises have obtained sufficient orders by virtue of their performance, brand influence, channels and other advantages, and can maintain full production and operation. However, the profit margin has dropped significantly, new entrants are facing insufficient orders, and the operating rate is not high. The comprehensive capacity utilization rate of the entire industry is around 50%.

Through research on the procurement price of stainless steel pipes in water supply companies, it is estimated that the gross profit margin of stainless steel pipes of production enterprises is about 24%, the gross profit margin of stainless steel pipe fittings is about 60%, and the gross profit margin of the entire product is about 30%.

Among the raw material steel belt sources of production enterprises, steel trading enterprises process and distribute 40%, direct procurement and self-processing account for 10%, and calendering processing and distribution account for 50%.

The market share of new entrants of stainless steel pipes is low, and the pressure of competition is high. At the same time, there are the following problems:

  • Since most enterprises do not have steel plate slitting equipment, according to the outer diameter of the steel pipe, the steel coil needs to be supplied after slitting; the slitting width is determined according to the diameter of the steel pipe, and the utilization rate of the steel coil slitting of conventional specifications can reach 100%, but it needs to meet Only a certain batch can be purchased, resulting in purchases exceeding the actual demand and increasing raw material inventory costs.
  • In order to ensure the welding quality, the burrs and camber indicators of the steel strip after slitting are strictly required. The purity of the steel strip will affect the occurrence of weld gray spots/slag spots in the welding production of steel pipes, which is the main reason affecting the qualification rate of steel pipes.
  • Thin-walled stainless steel pipes are usually delivered by measuring the length, that is, the delivery settlement is carried out at the price per meter. In order to reduce costs, the production company will require negative tolerance delivery under the premise of ensuring the steel pipe pressure index; and the production of pipe fittings will cause wall thickness reduction, so the thickness of the raw material plate of the pipe fittings will be slightly higher than the raw material thickness of the steel pipe.
  • Food-grade materials for stainless steel pipes must comply with the relevant provisions of GB 4806.9-2016 “National Food Safety Standards – Metal Materials and Products for Food Contact” or the requirements of food-grade stainless steel standards in other countries. The core indicator of the standard is the precipitation of heavy metals. According to customer feedback, the inspection of finished steel pipes often has the problem that the precipitation of heavy metals does not meet the standard requirements.
  • At present, manufacturers usually only purchase stainless steel surface smoothness 2B according to the market circulation. According to the different working conditions of steel pipes, steel pipe companies will carry out different surface treatments for stainless steel pipes. For example, in the southern region, the external wall riser will be directly exposed outdoors, and it is usually polished to increase the appearance; in the northern region, the water supply riser is in the pipe well, and the surface requirements are not high; indoor places such as hospitals and venues will require The cold water pipeline and hot water pipeline shall be treated with thermal insulation and plastic coating; the buried pipeline for secondary water supply shall be treated with anti-corrosion coating.
  • In order to save costs, most manufacturers do not heat-treat finished water pipes, which will seriously affect the corrosion resistance of stainless steel.

Development prospect of stainless steel pipe industry

Material design

Designing target materials for the use environment is an inevitable trend in the development of stainless steel pipes. For example:

  • Design pipes for seawater environment to realize resistance to pitting corrosion and stress corrosion cracking in seawater environment.
  • Design pipes for water environment with high oxygen content.
  • Design pipes with higher creep resistance, radiation resistance, and high-temperature steam oxidation resistance to achieve stainless steel pipes with different properties, such as high strength, high plasticity, high toughness, high corrosion resistance, and high purity.

It is an inevitable requirement for the development of stainless steel pipes to develop new materials in response to different environments to meet the needs of various industries.

Mainly address the following environmental needs:

  • Special environments such as dangerous goods transportation and handling.
  • Exhaust gas treatment and other harsh environments.
  • High temperature environments such as ultra-supercritical.
  • Oil and gas development adopts high pressure and high corrosion environment.
  • Antibacterial environment such as biocompatibility.
  • High purity use environment.

It is the future development direction of stainless steel pipes in my country to develop steel types from the source to meet the performance and high purity requirements of stainless steel pipes in different environments.

Innovative technology

Innovative technology, energy saving and emission reduction to achieve green enterprises and green products are the main theme of the development of stainless steel pipes.

Process innovation refers to the production and commercialization of existing or researched and developed new technologies, and the realization of major innovations will bring about systematic changes in the industry economy.

Management innovation

“Digital intelligent factory”, “process intelligence service platform”, “intelligent safety management”, and “computer-aided process design” are all management innovation platforms.

Through intelligent management, the production cost management of the enterprise, the physical quality of the product, the salary level of the staff and the safety production will enter a higher level. It has promoted domestic stainless steel pipe enterprises to gradually move towards an intelligent era of unmanned chemical factories and intelligent control of quality, intelligent management of processes, no casualties, and scheduled delivery of goods.

ECO development

National and local environmental protection policies are becoming increasingly stringent, and the zero discharge of waste liquid, waste water, solid waste and foreign matter and NO2 waste gas produced by the pickling process of stainless steel pipes is an inevitable trend in future development.

The development of technologies such as microfiltration, electrodialysis film forming technology and limit crystallization have provided technical feasibility for the surface treatment of stainless steel pipes to achieve zero emissions.

At the same time, the application of zero-emission technology is not only a means of ensuring environmental protection and achieving social benefits in the production of stainless steel pipes, but also the recycling and reuse of waste liquid, wastewater, and sludge has actual economic benefits.

Industry chain

The extended processing chain of enterprise products must advance and retreat with the demand side.

For example, when a company produces 445J2 ferrite large-scale reducing tubes, it starts with extended processing and provides services for supporting tubes for air conditioners, so that the sales of this product increase greatly with the sales of air conditioners. This is one of the future development directions.


As a popular application field in recent years, stainless steel water pipes have developed rapidly and are gradually playing an important role in improving residents’ healthy water use.

It is believed that the stainless steel pipe industry will further develop in the direction of specialization and industrialization in terms of continuous innovation, green development and innovative management in the future.

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