20 stainless steel welded pipeHow much do you know about

announcer:hp717HP127443542 release time:2021-11-29 13:17:19

Hydraulic saw grinding disc (manual saw wire cutting machine).

Stainless welded disc (grade I) gb1270-80 stainless steel pipe (grade I)

.The continuous casting of stainless steel pipe fittings is generally matched with the refining furnace, which has strict requirements on the chemical composition and temperature of molten steel; In order to prevent secondary oxidation of molten steel, non oxidation protection pouring is required during continuous casting production; Strict requirements for refractory materials such as ladle, tundish, nozzle and submerged nozzle.

For the manual clamping tool, the upper and lower jaw are fixed modules, and the pressure is set to output a constant pressure of 50MPa. The detection standard is to observe the seam of the upper and lower jaw and press it once or twice.

.The folded stainless steel hot rolled strip is hot rolled into a strip with a thickness of 80mm-00mm and a width of 50mm-1200mm.

According to different metallographic structure of stainless steel, it is divided into semi Ferritic and semi martensitic stainless steel pipe, martensitic stainless steel pipe, austenitic ferritic stainless steel pipe, etc.

For the manual clamping tool, the upper and lower jaw are fixed modules, and the pressure is set to output a constant pressure of 50MPa. The detection standard is to observe the seam of the upper and lower jaw and press it once or twice.


20 stainless steel welded pipeHow much do you know about



Relevant information stainless steel export is an important part of China's export economy. It plays an important role in stimulating China's economic growth. However, from the current situation of China's stainless steel foreign trade China's stainless steel export has encountered great resistance.

In the interior decoration project, the proportion of water pipes is very small, whether it is data consumption or price. However, once the water pipes show achievements, the results will be very serious. Therefore, it is extremely important to choose water pipes with reliable quality, high volatility, convenient maintenance, health and environmental protection. With the development of the national economy and the progress of people's living standards, people's requirements for domestic water pay more and more attention to health and environmental protection. A good water source escort pipeline has become a careful choice. Water pipes are generally experienced in lead pipes & rarr; Copper pipe & rarr; Iron pipe & rarr; Galvanized iron pipe → Plastic pipe & rarr; Development process of stainless steel pipe. It has become a trend in the world to select high-quality stainless steel materials as water supply pipes. The material indicates that in Germany, more than 80% of residents choose stainless steel water pipes; In Japan, more than 85% of households in Tokyo have adopted stainless steel water pipes; In Australia, it has begun to change other pipes to stainless steel pipes; In the United States, the water pipes of five-star hotels in Las Vegas are all made of stainless steel. Since the beginning of the 21st century, due to the progress of living standards, more than 30% of residents in China need water pipes to meet their needs of high-quality life. Therefore, high-quality stainless steel materials move from tableware to household water pipes. It has become a trend to select high-quality stainless steel pipes in tooling or home decoration projects. Stainless steel water pipes and stainless steel pipe fittings will become an indispensable part of the building materials market in the future. Stainless steel material is a recognized health material that can be implanted. The manufacture of water pipes based on stainless steel has a long history in developed countries. Stainless steel pipe has gradually become a new choice of water supply pipe with the characteristics of safety, sanitation, environmental protection, economy and applicability, and has become the current world trend and development direction. Stainless steel water pipe is called the real green pipe in the 21st century. With the gradual standardization of stainless steel pipe industry, it can be predicted that the consumption technology and connection technology of stainless steel pipe will also slow down to standardization and become more and more perfect. The development of stainless steel pipe technology will not only create a favorable condition for health, environmental protection and sanitation for national domestic water, but also win a larger market for stainless steel pipe enterprises. Stainless steel pipe entering the construction and decoration market is an attack in the water pipe industry.

Price of stainless steel pipe with 5mm diameter: according to the current market situation, the price of stainless steel pipe with 5mm diameter is 23300 yuan per ton.

market price.Doing well in marketing strategy innovation is a very key factor for every manufacturer joining stainless steel pipe to realize the marketing effect of market competition; However, due to the different characteristics of each market, stainless steel pipe manufacturers need to make different marketing strategy adjustments; As the saying goes, & ldquo; No matter what kind of cat it is catching mice is a good cat& rdquo; Professional projects include: stainless steel plate, stainless steel coil, stainless steel belt, stainless steel pipe and other related businesses. Merchants who hope to have this business please. This is also true in the marketing strategy. Therefore, manufacturers of stainless steel pipes need to make marketing innovation at any time to match the changing market conditions.

The specification and appearance quality shall comply with the provisions of gb14975-2002 stainless steel seamless steel pipe. The steel pipe is usually 5 ~ 10m long (indefinite length) hot rolled steel pipe, and the hot-rolled steel pipe is equal to or greater than 1m. The wall thickness of cold drawn (rolled) steel pipe is 0.5 ~ 0mm, people will be surprised: & ldquo; Stainless steel pipes are not rusty. Is there a problem with the steel quality;. In fact, this is a one-sided wrong view because the understanding of stainless steel pipe is not comprehensive enough. You should know that stainless steel pipe will rust under certain conditions.


20 stainless steel welded pipeHow much do you know about



This kind of steel pipe can be divided into stainless steel seamless steel pipe and stainless steel welded steel pipe (slotted pipe). According to different manufacturing processes, it can be divided into several basic types: hot rolling, cold drawing and cold rolling. According to the section shape, it can be divided into circular pipe and special-shaped pipe. Circular steel pipe is widely used, but there are also some square, rectangular, hexagonal, equilateral triangle Octagonal and other special-shaped stainless steel pipes.

index.The cold rolled steel strip has good strength and yield ratio, and the hot rolled steel strip has good ductility and toughness.

Formula for hydraulic test pressure of stainless steel welded pipe for weight calculation fluid (gbt1277-200): where: P - test pressure, MPa; R - stress, taking yield point of 50%, MPa; s - nominal wall thickness of steel pipe, mm; D - Nominal outer diameter of steel pipe, a year-on-year increase of 3%, of which the investment in ferrous metal smelting and rolling was 235.6 billion yuan, a year-on-year increase of 3%, down 1 percentage point from the same period in 2012; The investment in ferrous metal mining and dressing was 67.9 billion yuan a year-on-year increase of 8%, and the growth rate fell sharply by 15 percentage points.

.The compressive strength of duplex stainless steel alloy is twice that of austenitic stainless steel. Compared with L and 317L the designer can reduce its weight. Alloy is especially suitable for & mdash; 50° F/+600° F temperature range, in strict cases (especially for welded structures), it can also be used for lower temperatures. C≤ 0.030 Mn≤ 00 Si≤ 00 p≤ 0.030 S≤ 0.020 CR 20 ~ 20 Ni 5 ~ 5 mo0 ~ 5 n0.14 ~ 0.20 (AUSTENITIC FERRITIC type)

China's numbering rules adopt the use of element symbols and Chinese pinyin. Open hearth steel: P, boiling steel: killed steel: class a steel: T8: Special: ball joint steel and spring steel, such as 20CrMnTi 60simn, (C content is expressed in tens of thousands)

(IV) high level operation of steel plant and social inventory. The contradiction between market supply and demand spread to the circulation field, and the domestic steel inventory continued the growth trend at the end of the previous year. On March 15, it reached a historical high of 22.52 million tons an increase of 3.51 million tons over the previous high, including 14.32 million tons of construction steel inventory, accounting for 66% of the total inventory. After that, with the increase of seasonal consumption, the inventory gradually fell back to 15.4 million tons on July 26. The oversupply in the market also pushed up the inventory of steel mills. In mid March, the steel inventory of key enterprises reached a historical record, reaching 14.51 million tons, a year-on-year increase of 27%. In late June, it fell to 12.68 million tons, still an increase of 29% over the beginning. Professional stainless steel plate, stainless steel coil, stainless steel belt, stainless steel pipe and other products have a complete variety and sell well at home and abroad. The equipment has a long service life! Products lead the industry in wire products. Welcome to inquire. An increase of 4% over the same period in 2012.