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Sotrici304 stainless steel water pipeAbout job characteristics and the existence of risk factors

release time:2021-11-30 10:12:07Release user:717HP127443542

Application field: launch the market plan of stainless steel pipe in the target market of new products such as stainless steel kitchen equipment.

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.

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Stainless steel is usually divided into 201 stainless steel pipe, stainless steel pipe and ferritic stainless steel according to the matrix structure. Chromium content 12% ~ 30%. Its corrosion resistance, and its chloride stress corrosion resistance is better than other kinds of stainless steel.

Eseka,Production process of stainless steel welded pipe: raw material - strip - welded pipe - end repair - polishing - Inspection (spray printing) - Packaging - shipment (warehousing) (decorative welded pipe).

When using this process, the following key points sho-uld be paid attention to: during the welding process, the correct included angle between the welding handle, and the included- angle between the welding wire and the weldment surface is 15 & deg; & mdash; 20 & deg;; correct the molten pool temperature, change the included angle between the welding handle and weldment, change the welding speed, etc. to change the molten pool temperature, so as to en:sure Beautiful weld formation (uniform width, no concave?, convex and other defects) During operation, the current shall ,be slightly larger than that of solid core welding wire, and the welding handle shall be slightly adjusted to accelerate the separation of molten iron and molten flux coating, so as to facilitate the observation of molten pool and penetration; when filling the welding wire, it shall be sent to 12 places of molten pool and pressed inward slightly to ensure penetration and prevent concave; during welding, the welding wire shall be regularly sent and taken out, and the welding wire shall always be ensured Under the protection of argon to prevent the end of the welding wire from being oxidized and affect the welding quality; pay attention to the welding quality of the arc and arc stop, and the spot weld shall be polished to 45 & deg; the slope shall be gentle, and pay attention to the defects such as arc pit and shrinkage hole during arc stop.

Stainless steel has been used as a structural material for building new buildings and repairing historic sites for more than 70 years. Early designs were calculated according to basic principles. Today, design codes, such as ANSI as of the American Society of civil engineers, are used


Sotrici304 stainless steel water pipeAbout job characteristics and the existence of risk factors



440 & mdash; high strength cutting tool steel, with slightly[ higher !carbon ]content, can obtain{ higher yield str}ength after appropriate heat treatment, molybdenum and nitrogen in local corrosion-resistant duplex stainless steel makes it have strong ability to spot corrosion and interstitial corrosion in oxidizing and acidic solutions.

Model 321 & mdash; Except that the risk of weld corrosion of the material is reduced due to the addition of titanium, other properties are similar. Stainless steel decorative pipe, 201 stainless steel pipe, 400 series stainless steel pipe & mdash; Ferritic and martensitic stainless steel model 408 & mdash; Good heat resistance, weak corrosion resistance 11% Cr, 8% Ni.

reform,Model 303 & mdash; Add a small amount of sulfur and phosphorus to make it easier to cut.

Hardness stainless steel pipes are usually measured by Brinell, Rockwell and Vickers hardness indexes.

In the building water supply pipe system, due to the end of the glorious history of galvanized steel pipe, various new plastic pipes and composite pipes have developed rapidly, but various pipes still have some deficiencies in varying degrees, which are far from fully meeting the needs of water supply pipe system and the national requirements for drinking water and related water quality. Therefore, relevant experts: building water supply pipes will eventually return to the era of metal pipes. According to foreign application experience, stainless steel pipe is recognized as one of the pipes with good comprehensive performance in metal pipe.


Sotrici304 stainless steel water pipeAbout job characteristics and the existence of risk factors



There shall be a special storage rack. The storage rack shall be a wooden or painted carbon steel support or padded with rubber pad to isolate it from carbon steel and other metal materials. During storage, the storage position shall be convenient for lifting and absolutely isolated from other data storage areas. Protective measures shall be taken to avoid purification collision with other components, purification and damage of iron metal.

How much is it,Ferritic stainless steel the Cr content of ferritic stainless steel is generally 13% ~ 30%, and there is no & alpha during heating and cooling=& amp; amp;gt;& gamma; The transformation cannot be strengthened by heat treatment. Strong oxidation resistance. At the same time, it also h〖as good hot 〗workability and certain cold workability. Ferritic stainless steel is mainly used to make components with high corrosion resistance and low strength requirements. It is widely used in manufacturing equipment such as production, nitrogen fertilizer and chemical pipelines.

Han Jianbiao, an analyst at Zoomlion steel, poin;ted out that since, China's steel pipe exports have been only 30000 or 40000 tons per month, of which seamless pipe exports are only about 10000 tons per month.

For business people, of course, it is better to spend less under feasible conditions. For goods such as stainless steel pipes, we can often see that there will be packaging film bags on them. Although they are not heavy, if there are a large number of single purchases, they will also produce certain economic expenses, but why do many people clearly dislike this thing on stainless steel pipes, But I have to〖 accept it. Next〗, xincoral Xiaobian will tell you why stainless steel pipes need packaging bags.

SotriciDuplex 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.

Stainless steel has been used as a structural material for building new buildings and repairing historic sites for more than 70 years. Early designs were calculated according to basic principles. Today, design codes, such as ANSI as of the American Society of civil engineers, are used

Model 321 & mdash; other properties are similar except that the risk of weld corrosion is reduced due to the addition of titanium.

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