such as stainless steel pipe, we promise & ldquo; chromium and nickel & rdquo; Penalty for false and provide quality inspection report and certificate of conformity.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, with a one-time qualified rate of welding), which is worthy of our use.Chinautla,The application range is wider than that of ferritic stainless steel. Compared with ferritic stainless steel, duplex stainless steel has the following disadvantages: high alloy element content and relatively high price. Generally, ferritic stainless steel does not contain nickel.Welding of stainless steel pipe argon arc welding stainless steel pipe: it is required to have deep penetration, no oxide inclusion, and the heat affected zone can be as small as possible. Argon arc welding maintained by tungsten inert gas has good compliance, high welding quality and good penetration function. Its commodities are widely used in chemical, nuclear and food industries.Boundiali,After fine tuning the molten steel temperature in the argon blowing station it is lifted to the ladle rotary table for continuous casting.Stainless steel pipe, which was consumed and used at the end of the s, is a rebirth group emerging in today's pipe range. It has been widely used in the construction of water supply and direct drinking water pipelines. Stainless steel pipe is durable and has been recognized by the engineering community, and relevant parties are starting from reducing wall thickness and money, so as to facilitate further implementation. In order to promote stainless steel pipe, China has started to reduce wall thickness and cost; High diameter to wall ratio and high precision & rdquo; The technical effect of stainless steel pipe makes the stainless steel pipe lose its application and expand quickly. There are various connection modes of stainless steel pipes. The rare types of pipe fittings include contraction type, compression type,Chinautla316 stainless steel chain plate, union type, push type, push thread type, socket welding type union flange connection, welding type and derivative series connection mode combining welding with traditional connection. These connection methods have different application ranges according to their principles, but most of them are convenient, firm and reliable. The sealing ring or gasket materials used for connection are mostly silicone rubber, nitrile rubber and EPDM that meet the requirements of national specifications which eliminates the worries of users. In the construction of water supply pipe system, due to the glorious history of galvanized steel pipe, but they are far from fully meeting the needs of water supply pipe system and the national requirements for drinking water and related water quality. In direct drinking water, stainless steel pipe system is undoubtedly one of the best. At present, hotels and public places at the international level have been equipped or are equipped with direct drinking water pipelines. In many cases, stainless steel pipe has more advantages, especially the stainless steel pipe with wall thickness of only . ~ mm has the characteristics of safety, reliability, sanitation, environmental protection, economy and applicability in high-quality drinking water system, hot water system and water supply system that puts safety and sanitation first. It has been proved by engineering theories at home and abroad that it is not only one of the new, energy-saving and environmental protection pipes with good comprehensive function of water supply, but also a very competitive water supply pipe, which will play an unparalleled role in improving water quality and improving people's living standard.All steel with openings at both ends and hollow sections, and with a large ratio of length to section perimeter, can be called steel pipe. When the ratio of length to section perimeter is small, it can be called pipe section or tubular fittings, which belong to the category of pipe products.

Model & mdash; other properties are similar except that the risk of weld corrosion is reduced due to the addition of titanium.Prepare materials and tools, prepare corresponding materials and tools, and check whether they match and apply.Brinell hardness in stainless steel pipe standards, Brinell hardness is widely used, and the hardness of the material is often expressed by indentation diameter, which is intuitive and convenient. However, it is not suitable for steel pipes with hard or thin steel.agent, Series & mdash; Heat resistant chromium alloy steel.The back is not protected by argon, and the flux cored wire + TIG process has been applied in China for several years. Flux cored wires such as et-elt-et-elt-t-et-elt- have been produced and applied to field welding, and good economic benefits have been obtained.Human factors are also one of the causes of product oxidation that some consumers often encounter when using stainless steel products. Some consumers operate improperly in product use and maintenance, especially some stainless steel pipe products used in food and chemical equipment industry. For the artificially generated oxidation of steel products, they should have correct product use knowledge and Reasonable and effective maintenance shall be carried out regularly to reduce oxidation caused by improper use.

Model & mdash; Martensite (high strength chromium steel), good wear resistance and poor corrosion resistance.Information recommendation,;- Ferromagnetism due to m transformation shall be considered in use (such as in instrument parts).If packing is not required, it shall be indicated in the contract and will not bear the problem of scratching and scratching the surface of stainless steel pipe due to opening the packing bag.Ferritic and martensitic stainless steels are represented by series numbers. Ferritic stainless steel is marked with and , martensitic stainless steel is marked with and C, dual phase (austenite ferrite).Chinautla,The main way to prevent stress corrosion of austenitic stainless steel is to add SI ~ % and keep the content of N below .% from smelting. In addition the content of impurities such as P, Sb, Bi and as should be reduced as much as possible. In addition, A-F dual phase steel can be selected, which does not correspond to stress corrosion in Cl - and oh - media. The initial micro crack will not continue to expand after encountering ferrite phase, and the ferrite content should be about % . Series & mdash; martensitic precipitation hardening stainless steel pipe.The back side is not protected by argon, and the flux coated welding wire (self protective flux cored welding wire) + TIG process is adopted. In the s,ChinautlaStainless steel hydraulic pipe, the backing welding wire has been developed. Recently, China has also developed the stainless steel backing welding wire (i.e. flux coated welding wire, such as tgftgftgftgf, etc.) It has been applied to the actual construction and achieved good results. We have successfully applied it in the capacity expansion and reconstruction project of Urumqi Petrochemical.