design codes, such as ANSI as of the American Society of civil engineers, are usedWhen improved, it is possible to use it in refrigeration related engineering. Recently, suslx (cr Ti, Nb LC) and susl have been applied to frozen shells. Ferritic stainless steel has body centered cubic structure. When the material properties become weaker, sharp cracks will expand rapidly and cause brittleness. Austenitic series stainless steel will not produce brittleness because it has face centered cubic structure. Austrian stainless steel SUSL (cr-ni LC) and SUSL (cr-ni-mo-lc) shows that it still has superior impact characteristics at low temperature. However, pay attention to the precipitation of ferrite or martensite due to processing, and the tendency of embrittlement due to sensitized carbide or & sigma; equal heterogeneous precipitation.Schweichard,Hot rolled silicon steel sheet hot rolled silicon steel sheet is represented by Dr, which is divided into low silicon steel (silicon content & le; %) and high silicon steel (silicon content & amp; gt; %).The surface resistance is less than mb; Wear protection; Scalable; Excellent chemical resistance; Good alkali metal and acid resistance; Strong toughness; Flame retardant.Gunjur,Good ductility, used for forming products. It can also be machined to harden rapidly. Good weldability. Wear resistance and fatigue strength are better than stainless steel.The operators are mainly plumbers and argon arc welders, with the cooperation of other types of work, and the argon arc welder shall have the certificate issued by relevant departments.Model & mdash& ldquo; Cutting tool level & rdquo; Martensitic steel, an early stainless steel similar to Brinell high chromium steel. It is also used for surgical tools, which can be made very bright. Model & mdash; Ferritic stainless steel for decoration such as automotive accessories. Good formability, but poor temperature resistance and corrosion resistance.

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,Schweichard304L stainless steel 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.The specification and appearance quality shall comply with the provisions of gb- stainless steel seamless steel pipe. The steel pipe is usually ~ m long (indefinite length) hot rolled steel pipe, and the hot-rolled steel pipe is equal to or greater than m. The wall thickness of cold drawn (rolled) steel pipe is . ~ mm, ~ m; the wall thickness is greater than mm, ~ m.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.Inspection items,The petrochemical industry, including the chemical fertilizer industry, has a great demand for stainless steel pipes. Stainless steel pipes are mainly used in this industry, including, , l etc., with an outer diameter of about ￠ - ￠ and a wall thickness of about mm-mm (generally medium and low pressure transmission pipes with a specification of more than & phi; mm). The specific application fields are: furnace pipes material transmission pipes, heat exchanger pipes, etc.Stainless steel pipe factory stainless steel products are widely used in hardware products, furniture, mechanical structure, mechanical accessories, fluid transmission pipelines, such as furniture, machinery,SchweichardQuotation sheet of stainless steel pipe, medical oil, natural gas, water, gas, steam and other industries.There are mechanical, chemical and electrochemical methods to remove the scale of stainless steel pipe. Due to the complexity of the composition of the scale of stainless steel pipe, it is not easy to remove the scale on the surface and make the surface highly clear and flat. Generally, the removal of the scale of stainless steel pipe should be carried out in two steps, the first step is pretreatment and the second step is ash removal.

Therefore, the field with high utilization rate of stainless steel with high competitiveness and comprehensive quality will also be an important part of the plan.Free consultation,The scale pretreatment of stainless steel pipe makes the scale loose, and then acid pickling is carried out for easy removal. The pretreatment can be divided into the following: alkaline salt melting treatment method. The alkaline melt contains % hydroxide and % salt. The proportion of the two in the molten salt shall be strict, so that the molten salt has strong oxidizing power, low melting point and small viscosity. Only the sodium halo shall be analyzed in the production process, iron oxides and spinels can also be oxidized by salt to become loose ferric oxide, which is easy to be removed during acid pickling. Due to the action of high temperature, some of the formed oxides peel off and sink to the furnace bottom in the form of sediment. Alkaline salt melting pretreatment Process flow: steam degreasing → preheating ( ~ ℃, time ~ min) ↠ molten salt treatment & rarr; water quenching & rarr; hot water washing. Molten salt treatment is not suitable for assemblies with weld gap or crimping. When the parts are taken out of the molten salt furnace, a stream of alkali and salt mist will be splashed during water quenching, so deep well anti splash water quenching tank shall be used during water quenching. During water quenching, stop above the horizontal plane, close the tank cover,SchweichardStainless steel welded pipe manufacturer, and then lower the parts basket into the water, Professional L stainless steel pipe, s stainless steel pipe and L stainless steel pipe are stable, safe, the specification of stainless steel pipe is mainly based on gb- stainless steel seamless steel pipe. The general length (indefinite length) of precision stainless steel pipe and thick wall pipe is -m for hot-rolled steel pipe and m or more for hot-rolled steel pipe. The wall thickness of cold drawn (rolled) stainless steel pipe is .-mm and the length is -m; the wall thickness of stainless steel pipe is greater than mm and the length is -m.The surface resistance is less than mb; Wear protection; Scalable; Excellent chemical resistance; Good alkali metal and acid resistance; Strong toughness; Flame retardant.Schweichard,When installing and welding the fixed port of stainless steel pipe, it is difficult to vent on the inner side, and some sides are easy to be blocked. In this case, water-soluble paper + blocking plate can be used for blocking. That is, the easy to vent and good side can be blocked with blocking plate, the difficult to vent and bad blocking plate side can be blocked with water-soluble paper, and the weld on the outer side can be blocked with adhesive tape (see Table ) .Body austenitic stainless steel seamless steel pipe and welded steel pipe stainless steel pipe for mechanical structure stainless steel pipe for ordinary pipe stainless steel pipe for boiler, stainless steel pipe for heat exchanger and seamless steel pipe for chemical industry (crnit) qhyad crnimosi duplex stainless steel seamless steel pipe. Stainless steel is mainly used in the automobile industry, accounting for more than % of the total consumption of automobile stainless steel, and % is ferritic stainless steel. The exhaust gas produced by automobile engine is from the rear of intake pipe front pipe, hose, converter and center pipe. The common steel grades of exhaust system are L, l, etc. it is mainly used in automobiles Stainless steel welded pipe. It is estimated that the stainless steel pipe used in automobile accounts for about % of the consumption of stainless steel pipe in the whole downstream. L stainless steel pipe, s stainless steel pipe and L stainless steel pipe are provided for a long time. The products are complete, excellent quality and favorable price. The use ratio of stainless steel pipe and welded pipe is about :.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, 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.