Application field: tubular boiler for pipeline in harsh seabed environment product description: ultra (ultra) critical unit is the basis of modernization of power generation equipment and energy conservation and emission reduction. Among the important pressure parts of ultra (supercritical) boiler, superheater and reheater are the parts with high working temperature and bad working environment. Previously, all such materials used in China were imported from abroad, while only steel material manufacturers in the world have limited capacity. Such materials have a large gap, expensive import prices, difficult procurement and short supply, which seriously affected the production of ultra supercritical boilers and the development of electric energy in China. At present, China's demand for utility boiler tubes is about tons, and with the continuous improvement of ultra (supercritical) power generation technology, the demand is expanding. Several large domestic enterprises have invested a lot of human and financial resources in the R & D and production of such products, and have made considerable achievements. On the one hand, it has made its own contribution to the development of national electric power industry,MarielX6crniti18-10 stainless steel plate, but also brought considerable economic benefits to enterprises.Stainless steel export is an important part of China's export economy. It plays an important role in stimulating China's economic growth. However, from the current situation of China's stainless steel foreign trade, China's stainless steel export has encountered great resistance.Mariel,In the grades of Japanese steel (JIS Series), ordinary structural steel is mainly composed of three parts, which represent the material, types and uses, such as P (plate) represents plate t (tube) represents tube, which is generally low tensile strength. For example: SS & mdash& mdash; One s represents steel and K (kogu) represents tool; The third part represents the characteristic number and the second s represents & ldquo; Structure & rdquo; (structure), is the lower limit tensile strength of MPa, design codes, such as ANSI as of the American Society of civil engineers, are usedCyprus,Model & mdash; The corrosion resistance is the same, and the strength is better because the carbon content is relatively high.Stainless steel pipe factory stainless steel products are widely used in hardware products furniture, mechanical structure, mechanical accessories, precision medical instruments, fluid transmission pipelines, machinery, medical oil, natural gas, water, gas, steam and other industries.Using CrO and hsoho as the main components and adding an appropriate amount of mnso.ho coloring solution, the chemical coloring of stainless steel industrial pipe was carried out. The effects of pretreatment process, coloring solution temperature, mass concentration and coloring time on the color film of stainless steel industrial pipe were discussed. Through a large number of experiments, a good formula and process range of coloring solution are obtained. With the increase of temperature and time, the film thickness increases, and the color changes are brown, blue, purplish red and green. After curing and sealing treatment, the colored film of stainless steel industrial pipe has more uniform surface color, good reproducibility, and significantly improved wear resistance and corrosion resistance.

AUSTENITIC FERRITIC duplex stainless steel on the basis of austenitic stainless steel, appropriately increase Cr content and reduce Ni content and cooperate with remelting treatment. High prices, various specifications of stainless steel plates, stainless steel coils, stainless steel belts and stainless steel tubes are supplied in time and cost-effective. It has become the preferred brand for many wire products. Welcome to buy! Stainless steel with duplex structure of austenite and ferrite (including ~ % & Delta; - ferrite) can be obtained. Typical steel grades include crniti, CrNiTi ocrnimoti, etc. Duplex stainless steel has good weldability, and its tendency of intergranular corrosion and stress corrosion is also small. However, due to the high Cr content, it is easy to form & sigma; Pay attention when using.Stainless steel pipe will rust? It will rust. The stainless steel pipe only means that it is not easy to rust,MarielStainless steel drinking pipe, which does not mean that it will not rust. If it is placed in seawater, it will still be embroidered soon. It will not rust at room temperature. If it is in a high sulfate alkali environment for a long time, except in places with acid rain. Stainless steel pipe itself will not rust, butThe domestic prospect is promising, and there is a large demand for building water supply pipes. According to the 'Ninth Five Year Plan' of construction and the outline of long-term objectives in , the demand for each pipe is ~ km from to , including km of cold and hot water pipes in residential construction areas. Some people believe that the development of stainless steel water pipes is of great significance to improve the grade of modern urban buildings.Encyclopedic knowledge,Stainless steel seamless steel pipe for structure (instead of gbt-)Stainless steel pipe is a kind of hollow long round steel, which is widely used in industrial transmission pipelines such as petroleum, medical treatment, food, light industry, mechanical instruments and mechanical structural parts. In addition, when the bending and torsional strength are the same, the weight is relatively light. It provides L stainless steel pipe, s stainless steel pipe and L stainless steel pipe for a long time. It is an old brand of , with advantages in price and guaranteed quality It is also widely used in manufacturing mechanical parts and engineering structures. It is also commonly used as furniture, kitchenware, etc.Some reasons for product composition ratio: in order to reduce the production cost, reduce the proportion content of some important elements such as chromium and nickel, and increase the content of other elements such as carbon. This production phenomenon that the composition ratio is not strictly in accordance with the product model and product characteristics not only greatly reduces the product quality, for example, when the chromium content of stainless steel pipe is insufficient, it not only affects the production The corrosion resistance and formability of products have potential product quality and safety hazards when they are used in chemical, equipment and production industries. At the same time, they also affect the appearance and oxidation resistance of products.

Using CrO and hsoho as the main components and adding an appropriate amount of mnso.ho coloring solution, the chemical coloring of stainless steel industrial pipe was carried out. The effects of pretreatment process, coloring solution temperature, mass concentration and coloring time on the color film of stainless steel industrial pipe were discussed. Through a large number of experiments, a good formula and process range of coloring solution are obtained. With the increase of temperature and time, the film thickness increases, and the color changes are brown, blue, gold, purplish red and green. After curing and sealing treatment, the colored film of stainless steel industrial pipe has more uniform surface color, good reproducibility, and significantly improved wear resistance and corrosion resistance.The cost is reasonable,Accounting for about % - % of the total steel, it is widely used in the national economy. Because the steel pipe has a hollow section, it is suitable for gas and solid transmission pipelines; at the same time, compared with the round steel of the same weight, the steel pipe has large section coefficient and high flexural and torsional strength, so it has also become an important material in various machinery and building structures. Stainless steel is used Under the condition of equal weight, the structure and components formed by pipe have a larger section modulus than solid parts. Therefore, stainless steel pipe itself is an economic section steel that saves metal. It is an important part of steel, especially in oil drilling, production and metallurgyMechanical properties when the steel or sample is stretched, when the stress exceeds the limit, even if the stress is no longer increased, the steel or sample continues to have obvious plastic deformation, which is called yield, and the small stress value when the yield phenomenon occurs is the yield point.Formula for hydraulic test pressure of stainless steel welded pipe for weight calculation fluid (gbt-): where: P - test pressure MPa; R - stress, taking yield point of %, MPa; s - nominal wall thickness of steel pipe,MarielStainless steel handrail pipe, mm; D - Nominal outer diameter of steel pipe, mm.Mariel,;- Ferromagnetism due to m transformation shall be considered in use (such as in instrument parts).Stainless steel pipes are divided into ordinary carbon steel pipes, high-quality carbon structural steel pipes, alloy structural pipes, alloy steel pipes, bearing steel pipes, stainless steel pipes, bimetallic composite pipes, coated and coated pipes to save precious metals and meet special requirements. Stainless steel pipes have a wide variety, different uses, different technical requirements and different production. The outer diameter range of steel pipe currently produced is . & mdash; mm, wall thickness range . ~ mm. In order to distinguish its characteristics, we specialize in providing quality assurance for L stainless steel pipe, s stainless steel pipe and L stainless steel pipe. During the preferential activities, new and old customers are welcome to consult. Steel pipes are usually classified according to the following.Water preparation, transportation, purification, regeneration, seawater desalination and other water industry excellent materials. The demand is about tons.