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Austenitic stainless steel. It contains more than % chromium, about % nickel and a small amount of molybdenum, titanium, nitrogen and other elements. Good comprehensive performance and resistance to corrosion of various media.The protection mechanism of stainless steel backing wire + TIG process is that the back weld is protected by the metallurgical reaction of slag produced by welding wire melting and its alloy elements and the front weld is protected by argon, slag and alloy elements.Thessalonika,The selection of stainless steel plate shall consider the operating conditions such as manual operation or automatic operation, and the quality requirements for materials, such as hardness, etc. Economic accounting should also be considered. Each time the steel plate is newly polished,ThessalonikaRose gold stainless steel plate, it is required to produce a number of decorative plates with slow quality.Model & mdash; Add a small amount of sulfur and phosphorus to make it easier to cut.Makaz voruswali Yachin,Several kinds of stainless steel backing welding used for stainless steel backing welding usually adopt TIG process. According to the actual situation of the site, professional L stainless steel pipe, s stainless steel pipe, L stainless steel pipe and other special products, old brands, with advantages in price and guaranteed quality. We can use the following four kinds of backing welding.When the stainless steel fixed port is welded, how to ensure the argon filling protection on the inner side of the weld has become a difficult problem. For a long time, facing the national high price, the reasonable price and perfect service of all kinds of stainless steel plates, stainless steel coils, stainless steel belts and stainless steel pipes have been recognized by the majority of customers. In the actual construction on site, we use two welding joints The above problems were successfully solved by plugging with water-soluble paper on the side,Thessalonika310S stainless steel pipe, ventilation from the weld center and sealing with adhesive tape on the outside (see Table ).Production process of stainless steel pipe A. preparation of round steel; b. Heating; c. Hot rolling perforation; d. Cutting head; e. Pickling; f. Grinding; g．； h. Cold rolling; i. Degreasing; j. Solution heat treatment; k. Straightening; l. Pipe cutting; m. Pickling; n. Finished product inspection.

Model & mdash; Martensite (high strength chromium steel), good wear resistance and poor corrosion resistance.There are kinds of hot rolled (hot) steel pipes with a diameter of ~ mm, kinds of wall thickness of ~ mm, kinds of cold drawn (rolled) steel pipes with a diameter of ~ mm and kinds of wall thickness of . ~ mm.Standard classification - classification: national standard GB industry standard Yb local standard enterprise standard qcb- classification: product standard packaging standard basic standard - standard level (divided into three levels): y level: international advanced level I level: international general level H level: domestic advanced level - national standard: stainless steel bar (level I) gb- stainless welding disc Park (level H)Installation conditions,The recrystallization temperature changes with the shape variable. When the shape variable is %, the recrystallization temperature drops to ℃, and the recrystallization annealing temperature of cold deformed austenitic stainless steel is ~ ℃. At ℃ it needs to be kept warm for h, fully burned at ℃, and then water-cooled.Stainless steel why corrosion-resistant stainless steel decorative pipe, stainless steel pipe, stainless steel pipe, all metals react with oxygen in the atmosphere to form an oxide film on the surface. Unfortunately, the iron oxide formed on ordinary carbon steel continues to oxidize, expanding the corrosion and finally forming holes. The carbon steel surface can be guaranteed by electroplating with paint or oxidation resistant metals (e.g. zinc, nickel and chromium), but as is known, this protection is only a thin film. If the protective layer is, the steel below begins to rust.Solution treatment. The main purpose of water quenching after heating the steel to ~ ℃ is to dissolve the carbide in austenite and keep this state to room temperature, so that the corrosion resistance of the steel will be greatly improved. As mentioned above, in order to prevent intergranular corrosion, solid solution treatment is usually used to dissolve CrC in austenite and then cool rapidly. Air cooling can be adopted for parts, and water cooling is generally adopted.

Stainless steel seamless steel pipe for structure (instead of gbt-)knowledge,No solution treatment. The alloy elements do not dissolve into the matrix,ThessalonikaStainless steel plate 443, resulting in low alloy content and poor corrosion resistance.Stainless welded disc (grade I) gb- stainless steel pipe (grade I)Deburring: after the pipe is cut off, the burr shall be removed to avoid cutting the sealing ring.Thessalonika,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 fastHousehold worries.Add a small amount of sulfur and phosphorus to make it easier to cut.