In order to ensure the appearance quality of continuous casting slab, select appropriate maintenance slag; During continuous casting, the vibration marks formed on the surface of continuous casting slab due to the vibration of mold shall be; Electromagnetic stirring must be used in continuous casting of ferritic stainless steel pipe fittings.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,San-Rafael410 stainless steel plate factory, 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.San-Rafael,The Chinese brand cold rolled non oriented silicon steel strip (sheet) represents: DW + times of iron loss value (at the frequency of Hz, and the magnetic induction peak is T per unit weight iron loss value) + times of thickness value. For example,San-RafaelStainless steel floor heating pipe, dw- represents cold rolled non oriented silicon steel with iron loss value of W / kg and thickness of .mm. Now the new model is represented as W.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 fastRutana,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.Hardness stainless steel pipes are usually measured by Brinell, Rockwell and Vickers hardness indexes.Formula for hydraulic test pressure of stainless steel welded pipe for weight calculation fluid (gbt-): where: P - test pressure, MPa; R - stress, taking yield point of %, MPa; s - nominal wall thickness of steel pipe, mm; D - Nominal outer diameter of steel pipe, mm.

Model & mdash; Martensite (high strength chromium steel),San-Rafael347 stainless steel plate, good wear resistance and poor corrosion resistance.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.. 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.Latest consultation,Flux coated welding wire (self shielded welding wire) shall be used for backing TIG welding.Bidirectional Product Description: the tensile strength of the material is ~ mpa, and the high working temperature can reach ℃.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, stabilization treatment and stress relief treatment.Product line which can reduce the tendency of intergranular corrosion and improve the stress corrosion resistance of steel.

Austenitic stainless steel heat treatment austenitic stainless steel commonly used heat treatment processes are: solution treatment,Duplex stainless steel product description: This stainless steel has good corrosion resistance in urea carbamate solution and high stress corrosion cracking resistance in chloride environment. At the same time, the duplex stainless steel has excellent mechanical properties and can be used in plant construction with high safety requirements.In polluted air (such as atmosphere containing a large amount of sulfide, carbon oxide and nitrogen oxide), in case of condensed water, acetic acid liquid points will be formed, which will lead to chemical corrosion.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 fastSan-Rafael,Stainless steel pipe packing bag is nothing more than the function of protecting the surface of stainless steel pipe, so most stainless steel pipe users do not have to question this point.Application field: tubular boiler for pipeline in harsh seabed environment product description: ultra (ultra) critical unit is the basis of modernization of power generation equipment and energy conservation and emission reduction. Among the important pressure parts of ultra (supercritical) boiler, superheater and reheater are the parts with high working temperature and bad working environment. Previously, all such materials used in China were imported from abroad while only steel material manufacturers in the world have limited capacity. Such materials have a large gap, difficult procurement and short supply expensive import prices, which seriously affected the production of ultra supercritical boilers and the development of electric energy in China. At present, China's demand for utility boiler tubes is about tons, and with the continuous improvement of ultra (supercritical) power generation technology, the demand is expanding. Several large domestic enterprises have invested a lot of human and financial resources in the R & D and production of such products, and have made considerable achievements. On the one hand, it has made its own contribution to the development of national electric power industry, but also brought considerable economic benefits to enterprises. Series & mdash; Heat resistant chromium alloy steel.