LSAW Steel Pipe

 At the end of July this year, Xinyue received an inquiry for sanitary stainless steel tees from South America. This customer is the first time to send an inquiry to us. Xinyue people treat each new and old customer with professional and high-quality service attitude regardless of the order size. After receiving the customer's product draft and specifications, we quickly gave the quotations to the destination port. After receiving the quotation, the customer told us the quotation was reasonable and the delivery date was in line with expectations. After a week of mail communication, the two parties signed this contract . After receiving the payment, Xinyue immediately put into production. We have more than 20 years of experience in producing such fittings, and Every one of Xinyue is responsible for their due diligence, and the completion time is several days ahead of schedule. In the production process, we have already arranged the booking,After the completion of the production, the...

    Metal elements and functions required in the production of stainless steel:     Nickel: Nickel is a very important core element in stainless steel. It can improve the strength and toughness of steel and improve hardenability. When the content is high, some physical properties of steel and alloy can be significantly changed, and the corrosion resistance of steel is improved.     Manganese: It can improve the strength of steel, reduce and eliminate the adverse effects of sulfur on it, and improve the hardenability of steel. High alloy steel (high manganese steel) with high manganese content has excellent wear resistance and Other physical properties.     Chromium: It can improve the hardenability and wear resistance of steel, and can improve the corrosion resistance and oxidation resistance of steel.     Vanadium: It can refine the grain structure of steel and increase the strength, toughness and wear resistance of steel. When ...

　　310S stainless steel: a kind of high-alloy stainless steel . Compared with other types of stainless steel, the 310S base is austenitic chrome-nickel stainless steel, which has a higher proportion of chromium and nickel, so it is more resistant to high temperature and oxidation. Moreover, it can work normally in the environment of 1200 °C, and is more suitable for making furnace components. Considering its outstanding resistance to oxidation, corrosion, acid and alkali, and high temperature resistance, the current application range of 310S stainless steel has been extended to steam turbines. , aerospace, petrochemical, military and other fields. 　　What kind of concept is 1200 °C? To give a simple example: high temperature lava spilled from volcanoes or ground cracks, the temperature is only between 700 ° C ~ 1200 ° C, in other words, 310S stainless steel has enough conditions to retreat in the lava. 　　Such outstanding high-temperature performance makes people see the potential val...

　　Introduction of 304 stainless steel: 　　 304 stainless steel is the most common steel grade. As a kind of widely used steel, stainless steel pipe has good corrosion resistance, heat resistance, low temperature strength and mechanical properties; good hot workability such as stamping and bending, no heat treatment hardening phenomenon ( Non-magnetic, the temperature is -196 ° C ~ 800 ° C). 　　Scope of application 　　Household items (tableware, cabinets, indoor pipelines, water heaters, boilers, bathtubs) 　　Auto parts (windshield wipers, mufflers, molded products) 　　Medical equipment, building materials, chemistry, food industry, agriculture, ship parts. 　　Introduction of 316 stainless steel: 　　Performance introduction 　　Due to the addition of molybdenum, 316 stainless steel has excellent corrosion resistance, atmospheric corrosion resistance and high temperature strength, and can be used under severe conditions; it has excellent work hardening property (non-magnetic). ...

　　Judging by the name, you could assume that stainless steel never rusts — but you would be wrong. 　　 Stainless steel oxidizes less easily than other iron-based metals, but is not literally "stainless." Like standard steel, stainless steel can be marked with fingerprints and grease, develop discoloration and eventually corrode. The difference is the resistance. Stainless steel can withstand much longer and abuse before showing signs of wear. 　　All steels have the same basic iron and carbon composition, but stainless steel also contains a good dose of chromium-alloy that gives stainless steel its famous corrosion resistance. 　　And this is where things get complicated. There are multiple grades under the shade of stainless steel, each with a slightly different alloy composition, and therefore slightly different physical characteristics. 　　Stainless steel must contain at least 10.5 percent chromium. Depending on the grade, it may contain much higher levels of chromium a...

　　These steels have corrosion and heat resistant applications. A 3-digit numbering system that is used to identify them. The last 2 numbers have no special meaning, but the first indicates the group to which it belongs as follows: 　　CHARACTERISTICS OF STAINLESS STEEL 　　1.Corrosion resistance and high ductility 　　2.They have high chromium content 　　3.They develop the passivation process 　　They are the stainless steels to Chromium-Nickel (3xx series) and Chromium-Nickel-Manganese (2xx series), which are austenitic; They are essentially non-magnetic in annealing condition and do not harden by heat treatment, only by cold deformation. Resistant to impact and corrosion. 　　They are mainly steels with only between 11.5 and 18% Chrome. They are magnetic, have good toughness, great resistance to corrosion in the treated state. 　　This group of stainless steels with only Chrome have approximately 14 to 27% Chrome. They cannot be hardened by heat treatment, only moderately by cold d...

　　Standard martensitic stainless steels are: 403 stainless steel, 410 stainless steel, 414 stainless steel, 416 stainless steel, 416 (Se stainless steel), 420 stainless steel, 431 stainless steel, 440A stainless steel, 440B stainless steel and 440C stainless steel. The corrosion resistance of these steels comes from "chromium". "The chromium content ranges from 11.5 to 18%. The higher the chromium content, the higher the carbon content of the steel to ensure the formation of martensite during heat treatment. The above three types of 440 stainless steel are rarely considered to be welded. Application, and the filler metal of the 440 type component is not easy to obtain. 　　Martensitic stainless steel is mainly low carbon or high carbon steel with a chromium content ranging from 12% to 18%. There are three types of martensitic stainless steel grades as follows: 　　1. Low carbon and medium carbon 13% Cr steel. 　　2. High carbon 18% Cr steel. 　　3. Low carbon nickel (ab...

　　Stainless steel is different from the main symbol of carbon steel is in addition to carbon content, no other people to join other alloying elements. Carbon steel generally do not have any corrosion resistance, hardness than pure iron, of course, carbon is also controlled to a certain extent. 　　Many types of stainless steel, refers to the amount of steel is greater than or equal to 13%, in the atmosphere of stainless steel alloy. There are austenitic stainless steel, ferritic stainless steel, martensitic stainless steel and so on. Stainless steel generally does not have magnetic, but not absolute, austenite is not magnetic, but ferritic has, but also relatively weak. Different stainless steel resistance to corrosion is different, different corrosive to different media. 　　Regarding the difference carbon steel and stainless steel, generally believed that the first is in terms of corrosion resistance. However, stainless steel in practical applications, with its excellent performance,...