The manufacturing and maintenance of equipment consume more than tons of stainless steel pipe. This kind of industry mainly adopts sanitary or grade stainless steel pipe. The sanitary seamless pipe made of imported sus and l can meet the special requirements of various media in the field of food and biopharmaceutical. Stainless steel has the advantages and good performance of stainless steel. It is widely used in kitchen equipment workbench, utensils and medical instruments in the food industry The demand for tableware, towel hanging bracket and bracket of refrigerator in daily life is increasing.There is a bright future for domestic substitution for imported stainless steel pipes. Since the s, China has solved the problem of reducing wall thickness and cost; High diameter to wall ratio and high precision & rdquo; The technical problems of stainless steel pipe make the stainless steel pipe applied and developed rapidly. If a pipeline can be fully applied, localization is indispensable. At present, some domestic have the ability to produce and further develop stainless steel pipes and fittings.El-Estor,Chinese brand cold rolled non oriented silicon steel strip (sheet) means: DW + times of iron loss value (at the frequency of Hz, the magnetic induction peak with sinusoidal waveform is the unit weight iron loss value of t) + times of thickness value. For example, dw- represents cold-rolled non oriented silicon steel with iron loss value of W / kg and thickness of .mm. Now the new model is W.Stainless steel is usually divided into stainless steel pipe, stainless steel pipe and ferritic stainless steel according to the matrix structure. Chromium content % ~ %. Its corrosion resistance, toughness and weldability increase with the increase of chromium content, and its chloride stress corrosion resistance is better than other kinds of stainless steel.Kayes,The American Iron and Steel Institute uses three digits to identify various standard grades of malleable stainless steel. Among them, austenitic stainless steel is marked with numbers of and series. For example, some ordinary austenitic stainless steel is marked with and.No solution treatment. The alloy elements do not dissolve into the matrix, resulting in low alloy content and poor corrosion resistance.Stainless steel pipe is durable and has been recognized by the engineering community, and relevant parties are starting from reducing the wall thickness and lowering the grid, so as to facilitate further development. In particular, the price of stainless steel pipe is not high, so the supporting connection, the reliability and price of pipe fittings are the main factors determining its development. Domestic developers have independently developed connection technology and pipe fittings in Sichuan, Guangdong, Zhejiang, Jiangsu and other places, which is a promising pipe. The Ministry of construction and relevant departments also attach great importance to this new type of pipe. According to China technology market management promotion center and gksz [] No. document on Application & ldquo; High diameter to wall ratio and high precision stainless steel medium and high pressure water supply pipes and supporting fittings and special technology & rdquo; It is learned from the notice that the application of stainless steel pipe technology and product is of great significance to improve the grade of modern buildings in China and improve and ensure the water quality of water supply.

There are three main reasons for oxidation of stainless steel: production process, which is one of the reasons for oxidation of steel products. In terms of production process and product characteristics, forming a thin oxide film on the product surface is the basic process to avoid oxidation, and it is also one of the main characteristics of steel products different from other steel products. It is specialized in products, renewable resources business and business package Including: stainless steel plate, stainless steel coil, when the oxide film is incomplete and discontinuous due to insufficient or negligent production process, the oxygen in the air will directly react with some elements in the product, resulting in the appearance of oxidation of the product.The surface of stainless steel contains acid, alkali and salt substances (such as alkali water and lime water splashing on the decoration wall), it is not easy to polish (BQ is not good). If the hardness is too low. Raw material problem of stainless steel pipe. If the hardness is too low, orange peel is easy to appear on the surface during deep drawing, which affects BQ performance. BQ with high hardness is relatively good.Therefore, there are requirements for the service environment of stainless steel,El-EstorStainless steel flexible connecting pipe, and it is necessary to remove dust frequently and keep it clean and dry. & mdash; high strength cutting tool steel, with slightly higher carbon content, can obtain higher yield strength after appropriate heat treatment, and the hardness can reach hrc. It is one of the hard stainless steels. A common application example is & ldquo; shaving blade & rdquo;. There are three common models: C and f (easy processing type).

Deburring: after the pipe is cut off, the burr shall be removed to avoid cutting the sealing ring.Scheme customization,Because stainless steel has many ideal properties required by building materials, it can be said to be unique in metals and its development continues. In order to make stainless steel more neutral in traditional applications, existing types have been improved, and new stainless steel is being developed to meet the strict requirements of advanced architectural applications. Due to the continuous improvement of production efficiency and quality, stainless steel has become one of the cost-effective materials selected by architects. Stainless steel integrates performance, appearance and use characteristics, so stainless steel will still be one of the best building materials in the world.Stainless welded pipe (grade y) gb- stainless cold plate (grade I)Model & mdash& ldquo; Cutting tool level & rdquo; Martensitic steel, an early stainless steel similar to Brinell high chromium steel. It is also used for surgical tools which can be made very bright. Model & mdash; Ferritic stainless steel for decoration, such as automotive accessories. Good formability,El-EstorStainless steel compression fittings,. Raw material problem of stainless steel pipe. If the hardness is too low, it is not easy to polish (BQ is not good). If the hardness is too low, orange peel is easy to appear on the surface during deep drawing, which affects BQ performance. BQ with high hardness is relatively good.The slab solidified on the surface continues to be rapidly cooled through the secondary cooling section until the core becomes solid, and the whole continuous casting process of stainless steel pipe fittings is completed.Since the back is not filled with argon, its advantages are obvious, which is suitable for installation on the construction site. However, due to its structural characteristics, flux cored welding wire has high requirements for welders during operation, with fast wire feeding speed and high wire feeding accuracy. It is difficult to master. Welders should be specially trained and skilled before they can participate in welding in Yangba, Nanjing And foreign construction sites, we have successfully solved the problem that argon cannot be passed through the junction and repair port.