Deburring: after the pipe is cut off, the burr shall be removed to avoid cutting the sealing ring.The specific steps of continuous casting billet process of stainless steel pipe fittings are as follows: according to different steel grades, the vibration process of mold is matched with protective slag, which can improve the yield of %, save energy and shorten the production cycle, so as to improve the yield of molten steel.San-Lucas-Toliman,(I) The output reached a record high. From January to June, , the country produced million tons of crude steel, an increase of % year-on-year, an increase of percentage points over the same period last year. In the first six months, the average daily output of crude steel was tons, equivalent to the level of . billion tons of crude steel. Among them, it reached a record high of . million tons in February. Although it fell from March to June, it still remained at a high level of more than . million tons. From January to June,San-Lucas-Toliman304 steel gas pipe is of good brand, according to provinces and regions, the output of Shanxi, Liaoning, Henan and Yunnan also increased by more than million tons. According to the types of enterprises, the crude steel output of key large and medium-sized iron and steel enterprises increased by % year-on-year from January to June, percentage points lower than the national average increase. The professional L stainless steel pipe and s stainless steel pipe Steel pipe and L stainless steel pipe have high pressure rating, good waterproof performance, fire and high temperature resistance, strong overload capacity, corrosion resistance,San-Lucas-TolimanHigh temperature stainless steel strip, radiation protection and long service life. However, % of the increase in production still comes from key large and medium-sized iron and steel enterprises.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.DeltaUsing CrO and hsoho as the main components and adding an appropriate amount of mnso.ho coloring solution, the chemical coloring of stainless steel industrial pipe was carried out. The effects of pretreatment process, coloring solution temperature, the film thickness increases a good formula and process range of coloring solution are obtained. With the increase of temperature and time, and the color changes are brown, blue, purplish red and green. After curing and sealing treatment, the colored film of stainless steel industrial pipe has more uniform surface color, good reproducibility, and significantly improved wear resistance and corrosion resistance.Accounting for about % - % of the total steel, it is widely used in the national economy. Because the steel pipe has a hollow section, it is suitable for gas and solid transmission pipelines; at the same time, compared with the round steel of the same weight, the steel pipe has large section coefficient and high flexural and torsional strength, so it has also become an important material in various machinery and building structures. Stainless steel is used Under the condition of equal weight, the structure and components formed by pipe have a larger section modulus than solid parts. Therefore, stainless steel pipe itself is an economic section steel that saves metal. It is an important part of steel, especially in oil drilling production and metallurgyWhen water-soluble paper is used to block the ventilation, the ventilation pipe shall be pulled out quickly at the later sealing link due to the ventilation from the weld center, and the residual argon inside shall be used for protection, so as to quickly finish the bottom and seal the mouth.

Application field: launch the market plan of stainless steel pipe in the target market of new products, such as stainless steel kitchen equipment.　　SPCCSPCC—& mdash; Cold rolled carbon steel sheet and strip are generally used, which is equivalent to qa. The third letter C is the abbreviation of cold. When it is necessary to ensure the tensile test, add t at the end of the brand as spcct.Stainless steel has been used as a structural material for building new buildings and repairing historic sites for more than years. Early designs were calculated according to basic principles. Today, design codes,San-Lucas-TolimanStainless steel thin wall pipe, such as ANSI as of the American Society of civil engineers are usedSafety production,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, 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 ) .Chloride ions exist in the service environment. Chloride ions exist widely, such as salt, sweat, sea water, sea breeze, soil, floating rust of iron foam and so on. Stainless steel corrodes rapidly in the presence of chloride ions, even more than ordinary low carbon steel. Therefore, there are requirements for the service environment of stainless steel, and it is necessary to remove dust frequently and keep it clean and dry. (in this way, we can give him a & ldquo; improper use & rdquo;) there is an example in the United States: an enterprise uses an oak container to contain a solution containing chloride ions. The container has been used for nearly years. The ninetieth generation of the last century plans to replace it. Because the oak material is not modern enough, the container leaks due to corrosion days after it is replaced with stainless steel.At low temperature, ferritic stainless steel pipe has low-temperature brittleness like carbon steel, but austenitic steel does not. Therefore, ferritic or martensitic stainless steel produces low-temperature brittleness, while austenitic stainless steel or nickel base alloy does not show low-temperature brittleness. Sus (Cr) and SUS (cr) of ferritic stainless steel pipe It shows that the impact value decreases sharply at low temperature. Therefore, it is necessary to pay special attention when using at low temperature. As a way to improve the impact toughness of ferritic series stainless steel, high purification process can be considered. With the help of C and N level,When the stainless steel fixed port is welded, it will be difficult to ventilate on both sides of the weld. At this time, 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, with slightly higher carbon content, can obtain higher yield strength after appropriate heat treatment, and the hardness can reach hrc. It belongs to hard stainless steel. A common application example is & ldquo; Shaving blade & rdquo;. There are three common models: C and f (easy to process).San-Lucas-Toliman,Combined steel and spring steel, such as CrMnTi simn, (C content is expressed in ten thousandths).Adjust the ratio of austenite forming elements to ferrite forming elements in the steel to make it have austenite + ferrite dual phase structure, in which ferrite accounts for % - %. This dual phase structure is not easy to produce intergranular corrosion.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.