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, such as the Chrysler Building in New York City. However, in many other applications, the role of stainless steel is not so eye-catching, but in the aesthetics and performance of buildings For example, it is the preferred material for designers when building sidewalks in places with large population flow.W = (outer diameter wall thickness) & times; wall thickness & times; . = KGM (weight per meter).Castries,Characteristics and application h austenitic stainless heat strength steel has good corrosion resistance, welding performance and heat strength performance. h stainless steel is used for large boiler superheater,CastriesWeight of stainless steel pipe, reheater, steam pipeline and petrochemical heat exchanger pipe fittings.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.Akwatia,Inspection: after crimping, check the crimping size with a special gauge.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 hoisting stainless steel pipes, public slings, such as hoisting belt and public collet number, shall be used. It is strictly prohibited to use steel wire rope to avoid scratching the surface; and when hoisting and placing, it shall prevent scratching caused by impact and collision. If there are surface scratches,CastriesStainless steel 316L coil,Castries304 stainless steel industrial welded pipe, electric arc traces and surface purification in the process of transportation, storage and processing, it must be completely cleaned, polished with an angle grinder, and then polished Polishing with optical sheet or metallographic sandpaper.

Argon shall conform to the rules of national specifications, and argon with purity of % shall be selected. If the content of impurities is too high, the maintenance effect of argon will be weakened and the weld quality will be indirectly affected.(VI) the growth rate of fixed asset investment in the iron and steel industry dropped significantly. From to June, the investment in fixed assets in the iron and steel industry was . billion yuan, a year-on-year increase of %, of which the investment in ferrous metal smelting and rolling was . billion yuan, a year-on-year increase of %, down percentage point from the same period in ; The investment in ferrous metal mining and dressing was . billion yuan, a year-on-year increase of %, on-site technical and safety disclosure to the on-site operators.Excellent quality,In many construction sites, we use this kind of welding for priming, which can effectively ensure its quality and has certain construction difficulties. Therefore, careful and skilled welders should be selected for this work.Stainless steel grade group Series & mdash; Chromium nickel manganese austenitic stainless steel series & mdash; Chromium nickel austenitic stainless steel model & mdash; Good ductility, used for molding products. It can also be machined to harden rapidly. Good weldability. The wear resistance and fatigue strength are better than those of stainless steel.After molten steel casting, stainless steel pipe fittings generally adopt the same vertical, the ladle to be poured is transferred above the tundish mouth through the rotary table, and then the molten steel is tundish through the long nozzle. The molten steel in tundish enters the mold through the submerged nozzle for forming, condensation and continuous downward movement.

Section shape stainless steel pipe can be divided into round pipe and special-shaped pipe according to the section shape. Special shaped tubes include rectangular tubes, rhombic tubes, elliptical tubes, hexagonal tubes, octagonal tubes and various cross-section asymmetric tubes. Special shaped pipe is widely used in various structural parts, tools and mechanical parts. Compared with circular pipe, special-shaped pipe generally has large moment of inertia and section modulus, and has large bending and torsion resistance, which can greatly reduce the structural weight and save steel.Quality department Series & mdash; Martensitic precipitation hardening stainless steel.L stainless steel pipe is also called CrNiMo stainless steel pipe. CrNiMo is an ultra-low carbon steel of CrNiMo. CrNiMo has better intergranular corrosion resistance than crnimo. It is usually used to manufacture industrial equipment such as chemical industry, chemical fertilizer and chemical fiber, such as containers, pipelines and structural parts.The product quality advantages of continuous casting billet of stainless steel pipe fittings are mainly reflected in that the non grinding rate of the outer surface of the billet except the head and tail section has reached more than %, and the total surface grinding yield has reached %. In order to achieve this goal it is necessary to refine the molten steel, achieve low oxygen and sulfur content, do a good job in the metallurgy of the ladle and tundish, accurately determine the molten steel temperature and realize no oxidation casting, the duplex stainless steel has excellent mechanical properties and can be used in plant construction with high safety requirements. Series & mdash; Martensitic precipitation hardening stainless steel.

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.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