Flux coated welding wire is used for backing welding, and argon gas is not used inside the weld. The welder's operation is simple and fastAt the same time, the Ministry of construction attaches great importance to the application of stainless steel pipes. The industry standard of stainless steel water pipe was issued and implemented in . The Ministry of construction has issued documents on relevant technical specifications and installation sets of pipeline engineering, stainless steel coil, stainless steel belt and stainless steel pipe are qualified. Welcome to telephone inquiry and sincerely invite cooperation! At present, there are stainless steel pipes in Sichuan, Guangdong, Zhejiang, Jiangsu and other places, and the products have become mature. Therefore,CotuiPrice of stainless steel strip, the time for application has come.Cotui,It has lower linear coefficient than austenitic stainless steel and is close to carbon steel. It is suitable for connection with carbon steel and has important engineering significance, such as the production of composite plate or lining.Accounting for about % - % of the total steel, it is widely used in the national economy. Because the steel pipe has a hollow section, 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,Cotui304 stainless steel pipe, especially in oil drilling,Proper heat treatment process can prevent intergranular corrosion and obtain excellent corrosion resistance.The back is blocked with blocking plate for ventilation protection; Only soluble paper or the combination of soluble paper and blocking plate is used for blocking ventilation protection; Use flux cored wire for backing TIG welding.Deformation strengthening of austenitic stainless steel stainless steel has good cold deformation performance. It can be cold drawn into very thin steel wire and cold rolled into very thin steel strip or steel pipe. After a large amount of deformation, the strength of the steel is greatly improved, especially when rolling in the subzero temperature zone. The tensile strength can reach more than MPa. This is because in addition to the cold hardening effect, there are also superimposed Deformation induced M transition.

Application: utility boiler industry,CotuiStainless steel plastic coated pipe, mainly in key parts such as high temperature section of superheater and reheater.The internal and external greasy dirt and sundries at the pipe end shall be completely removed to keep the pipe inside the pipe fittings clean.Since the back is not filled with argon, its advantages are obvious, mainly for its simplicity and low cost, 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.The cost is reasonable,Shape, stress, temperature and metal flow of forgings and dies. Results the multi-step upsetting extrusion process under high temperature can make the end of steel pipe meet the forming requirements. Conclusion the plastic forming process of steel pipe end is feasible, which has important reference significance for the improvement of pipe connection mode of railway freight car braking system.That is stainless steel. The GB brand is CrNi. & mdash; it has better temperature resistance than it. Series & mdash; martensitic precipitation hardening stainless steel pipe.

Add a small amount of sulfur and phosphorus to make it easier to cut.Professional is king,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.The two ends of the m long steel pipe are mechanically cut, and the pipe end is relatively sharp to prevent direct contact with the sealing ring of the pipe fitting. It is necessary to cut off a small section at both ends of the pipe or grind off the corner edge with a hand grinder, and then clamp the pipe fittings.Model & mdash; The addition of sulfur improves the processability of the material.Cotui,Flux coated welding wire (self shielded welding wire) shall be used for backing TIG welding.Application fields: chemical industry, construction industry.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.