Stainless steel grade group Series & mdash; Chromium nickel manganese austenitic stainless steel series & mdash; Chromium nickel austenitic stainless steel model & mdash; Good ductility used for molding products. It can also be machined to harden rapidly. Good weldability. The wear resistance and fatigue strength are better than those of stainless steel.It has the characteristics of high efficiency and low cost. At the same time, it can also well ensure the welding quality (in the capacity expansion and reconstruction project of Urumqi petrochemical, we use this method to weld joints and repair joints, with a one-time qualified rate of welding), which is worthy of our use.Bahamas, press roller, blade, impeller, etc. in high-strength corrosion-resistant environment.Model & mdash; Cheap model (British and American), usually used as automobile exhaust pipe, is ferritic stainless steel (chromium steel).Kumasi,Stainless steel pipe is safe, reliable, hygienic, environmentally friendly, economical and applicable. The successful development of pipeline and new reliable, simple and convenient connection makes it have more irreplaceable advantages of other pipes. It will be used more and more in engineering, and the use will be more and more popular. It has a good prospect.Marking: in order to make the steel pipe complete the socket of the pipe fitting, the length must be marked and marked at the pipe end.Austenitic stainless steel austenitic stainless steel is developed to overcome the lack of corrosion resistance and brittleness of martensitic stainless steel. The basic composition is crl% and Ni%, which is referred to as - steel for short. Its characteristic is that the carbon content is less than .% and the single-phase austenite structure is obtained by the combination of Cr and Ni.

Stress relief treatment. Stress relief treatment is a heat treatment process to eliminate the residual stress of steel after cold working or welding. It is generally heated to ~ ℃ for tempering. For steels without stabilizing elements Ti and Nb, the heating temperature shall not exceed ℃, so as to avoid intergranular corrosion caused by chromium carbide precipitation. For cold worked and welded parts of ultra-low carbon and stainless steel containing Ti and Nb, they need to be heated at ~ ℃ and then cooled slowly to eliminate stress (the upper limit temperature is taken for eliminating welding stress), it has higher energy absorption capacity than austenitic stainless steel, which has obvious advantages and practical application value for structural parts to deal with sudden accidents such as collision, etc. Compared with austenitic stainless steel, duplex stainless steel has the following disadvantages: its universality and versatility are not as good as austenitic stainless steel. For example its service temperature must be below ℃.Stainless steel why corrosion-resistant stainless steel decorative pipe, stainless steel pipe, stainless steel pipe, all metals react with oxygen in the atmosphere to form an oxide film on the surface. Unfortunately, expanding the corrosion and finally forming holes. The carbon steel surface can be guaranteed by electroplating with paint or oxidation resistant metals (e.g. zinc, nickel and chromium) but as is known, this protection is only a thin film. If the protective layer is, the steel below begins to rust.Quality Assurance,This material without titanium and niobium has an inherent tendency of intergranular corrosion. Intergranular corrosion can be reduced by adding titanium and niobium and stabilizing treatment. It is a kind of high alloy steel that can corrode in air or chemical corrosive medium. Stainless steel has beautiful surface and good corrosion resistance. It does not have to undergo surface treatment such as color plating to play a role of rust freeDecorative stainless steel pipe: usually the outer wall is relatively bright, so its name is considered. Decorative stainless steel pipe is used for decorative purposes. The stainless steel pipe for general decorative purposes is relatively thin. Because it is different from the manufacturing process of stainless steel product pipe, the price also varies greatly. The general production process of decorative stainless steel pipe is ordinary welded stainless steel pipe. Guangdong stainless steel product pipe stainless steel product pipe: generally, the surface of stainless steel product pipe is also a bright surface, and a small number of pipes with acid pickling industrial surface. As mentioned above, stainless steel product pipe belongs to the purpose of stainless steel products, because the outer diameter size, mechanical properties, acid, alkali and corrosion resistance of stainless steel pipe are relatively good, Therefore, stainless steel pipes are generally used as anti-corrosion materials or hardware products in large-scale production enterprises. The production process of stainless steel pipes is one-time forming, and nitrogen protection is also added during welding.Stainless steel pipe factory stainless steel products are widely used in hardware products, furniture, mechanical structure, mechanical accessories, precision medical instruments, fluid transmission pipelines such as furniture, machinery, medical oil, natural gas, water, steam and other industries.

Model & mdash; The corrosion resistance is the same,BahamasStainless steel instrument tube, and the strength is better because the carbon content is relatively high.Sampling inspection,As long as the steel type is selected correctly and maintained properly, stainless steel will not produce corrosion, pitting, corrosion or wear. Stainless steel is also one of the high-strength materials in metal materials for construction. Because stainless steel has good corrosion resistance, it can ensure that the structural components can maintain the integrity of engineering design. Chromium containing stainless steel also integrates mechanical strength and high extensibility and is easy to wear The processing and manufacturing of parts can be fullStainless steel pipe is a long strip of steel with hollow section and no joints around it. The thicker the wall thickness of the product, the more economical and practical it is. The thinner the wall thickness, the higher its processing cost will be.When the stainless steel fixed port is welded, it will be difficult to ventilate on both sides of the weld. At this time, how to ensure the argon filling protection on the inner side of the weld has become a difficult problem. For a long time, facing the national high price, the reasonable price and perfect service of all kinds of stainless steel plates, stainless steel coils, stainless steel belts and stainless steel pipes have been recognized by the majority of customers. In the actual construction on site, we use two welding joints The above problems were successfully solved by plugging with water-soluble paper on the side,Bahamas304dq stainless steel plate, ventilation from the weld center and sealing with adhesive tape on the outside (see Table ).Bahamas,For more than years, architects have been using stainless steel to build cost-effective buildings. Many existing buildings fully illustrate the correctness of this choice. Some are very ornamental, such as the Chrysler Building in New York City. However, in many other applications, the role of stainless steel is not so eye-catching, but in the aesthetics and performance of buildings For example, because stainless steel has more wear resistance and pressure resistance than other metal materials of the same thickness, it is the preferred material for designers when building sidewalks in places with large population flow.Adjust the ratio of austenite forming elements to ferrite forming elements in the steel to make it have austenite + ferrite dual phase structure, in which ferrite accounts for % - %. This dual phase structure is not easy to produce intergranular corrosion.The petrochemical industry, including the chemical fertilizer industry, has a great demand for stainless steel pipes. Stainless steel pipes are mainly used in this industry, including, , l, material transmission pipes, heat exchanger pipes, etc.