Stainless steel water supply pipeThere are several levels of processing

Characteristics and application 347h austenitic stainless heat strength steel has good corrosion resistance, reheater, steam pipeline and petrochemical heat exchanger pipe fittings.

2: stainless steel pipe: seamless pipe and seamless pipe (longitudinal welded pipe, welded pipe, welded pipe, bright pipe). There are more than 200 kinds of standard specifications of stainless steel pipe, all sizes, and the small pipe is more expensive, especially the capillary. The capillary is poor to be made of 304 material, otherwise the pipe is easy to burst. You can also customize non-standard pipes for customers. Seamless pipes are mainly used in industry, and the surface is foggy, Not bright. The surface of the slotted pipe is a bright surface, and there is a thin welding line in the pipe, commonly known as welded pipe, which is mainly used for decorative materials. In addition, the pressure resistance of industrial fluid pipe depends on the wall thickness. 310 and 310S are high temperature resistant pipes. They can be used normally below 1080 degrees, it shall not be too large to prevent the pipe from being out of round.

Prepare materials and tools, prepare corresponding materials and tools, and check whether they match and apply.

.Stainless steel pipes are divided into hot rolled, hot drawn and cold drawn (rolled) stainless steel pipes according to the connection and rolling process. According to the difference of stainless steel microstructure, they mainly include semi Ferritic and semi martensitic stainless steel pipes, martensitic stainless steel pipes, austenitic stainless steel pipes, austenitic ferritic stainless steel pipes, etc.

Production and manufacturing can be divided into hot-rolled pipe, cold-rolled pipe, cold drawn pipe, pipe, etc.

Good corrosion resistance, suitable for a variety of media; The addition of Mo improves the corrosion resistance to reducing salts; It is resistant to marine and industrial atmospheric erosion, and can be used in seawater equipment; Due to its low carbon content, it has excellent grain boundary corrosion resistance; It can be used in pulp and paper machinery; Good processability and weldability.

For the length of welding arc, 2 ~ 4mm is better for ordinary steel welding, and ~ 3mm is better for stainless steel welding. If it is too long, the protection effect is not good.

Hardness test: annealed stainless steel pipes with inner diameter of more than 0mm and wall thickness of less than 13mm can be tested by w-b75 Vickers hardness tester which is very fast and simple,Stainless steel pipe cleaning, and is suitable for rapid and nondestructive qualification test of stainless steel pipes. For stainless steel pipes with inner diameter of more than 30mm and wall thickness of more than 2mm,Ultra thin 304 stainless steel strip, Rockwell hardness tester shall be used to test HRC hardness. Stainless steel pipes For stainless steel pipes with inner diameter greater than 30mm and wall thickness less than 2mm, the surface Rockwell hardness tester shall be used to test HRT or hrn hardness. For stainless steel pipes with inner diameter less than 0mm and greater than 8mm, the special Rockwell hardness tester for pipes shall be used to test hr15t hardness. When the inner diameter of stainless steel pipes is greater than 26mm, the Rockwell or surface Rockwell hardness tester can also be used to test the hardness of pipes.

　　·Oil and gas pipeline, but it is not easy to rust compared with other steel grades. Many people will think that the stainless steel pipe is not rusty, especially the stainless steel pipe has high nickel content, which is more difficult to rust. If it is rusty, they will doubt whether it is fake, whether it will be replaced by 201 stainless steel pipe, or there is a problem with the raw materials of the steel strip. In fact, these questions and judgments are one-sided views on the lack of understanding of stainless steel pipes. Stainless steel pipes may also produce rust and rust spots under certain conditions.

After the stainless steel pipe is completed, it must be moved, moved and moved for a long distance. If there is no bag, there will be scratches and scratches on the surface, which will affect the appearance of the surface.

The steel grades for JIS mechanical structures are: S + carbon content + letter code (CK), in which the carbon content is represented by the intermediate value & times; 100 the letter C: represents carbon, and K: represents steel for carburizing. For example, the carbon content of carbon coil s20c is 0.18-0.23%. The grades of silicon steel sheets in China and Japan are.

5 identification number and indication use international chemical element symbols and national symbols to indicate chemical composition. For a long time, stainless steel plate, stainless steel coil, stainless steel belt and stainless steel pipe have complete products, excellent quality and favorable price. Use letters to indicate composition content: for example, China and Russia use fixed digits to indicate steel series or numbers; for example, the United States, Japan, 300 series, 400 series 200 series; the serial number is composed of Latin letters and order, which only indicates the purpose.

superior quality.In the building water supply pipe system, since the galvanized steel pipe has ended its glorious history of one hundred years various new plastic pipes and composite pipes have developed rapidly. The professional stainless steel plate, stainless steel coil, stainless steel belt and stainless steel pipe have advanced technology strict testing, more affordable price and more preferential treatment. Welcome to consult. However, there are still some deficiencies in various pipes to varying degrees, It is far from fully meeting the needs of water supply pipeline system and national requirements for drinking water and related water quality. Therefore, relevant experts: building water supply pipes will eventually return to the era of metal pipes. According to foreign application experience stainless steel pipe is recognized as one of the pipes with good comprehensive performance in metal pipe. Chemical analysis: carry out chemical analysis on the chemical composition of the material, and the chemical composition meets the requirements

There shall be a special storage rack. The storage rack shall be a wooden or painted carbon steel support or padded with rubber pad to isolate it from carbon steel and other metal materials. During storage, the storage position shall be convenient for lifting and absolutely isolated from other data storage areas. Protective measures shall be taken to avoid purification,Stainless steel plate 2080 plate, collision with other components, the raw material difference of the three materials, such as 20 and, which are common in the market, is more than 5000 yuan per ton.

In addition, when selecting the reasonable thickness of the steel plate, its service time, quality and stiffness should be considered, and the strength requirements of the plate under pressure should be considered; Thermal conductivity; Distribution of pressure and format specification of pressing plate.

Standard provisions.