Detailed analysis of the future development prospects of the elbow industry
Release time:
Dec 07,2020
China is already the world's largest producer and consumer of elbow building materials.The main building materials products such as cement, flat glass, building sanitary ceramics, stone and wall materials have been in the top position for many years.At the same time, the quality of building materials products has been continuously improved, the consumption of energy and raw materials has been declining year by year, various new building materials have been emerging, and building materials products have been continuously upgraded.
Elbow products have a variety of special steel, stainless steel, carbon steel and other caliber seamless steel pipe, low, medium and high pressure boiler pipe, oil drilling pipe and other steel pipe; All kinds of tee, four-way, valve, reducer and other elbow pipe fittings.
Various stainless steel flanges and forged flanges; various pipe racks, instruments, oil blowout preventers and other pipe fittings.
All kinds of polyethylene pipes, polypropylene pipes and other plastic pipes, a total of 16 categories of more than 370 varieties 3500 a variety of specifications.
The elbow manufacturing process mainly adopts hot-rolled straight seam welding, spiral double-sided submerged arc welding, forging, forging, intermediate frequency pushing, cold forming, hot extrusion, etc. The large processing diameter of the pipeline is 2020mm.
The products are widely used in municipal, petrochemical, west-east gas transmission, shipbuilding and nuclear power and other engineering fields, with an annual design and processing capacity of 25 million tons.
Elbow enterprises achieved industrial added value of 13 billion billion yuan, an increase of 31.7 percent over the same period last year, accounting for 16.1 percent of the added value of all enterprises above designated size.
The elbow pipeline equipment manufacturing industry is moving towards the goals of "three upper" (upper scale, upper level, upper equipment) and "three high" (high end, high pressure, high added value), and the pipeline equipment manufacturing industry is urged to reach 30 million tons.
It will become a well-known "pipeline equipment manufacturing and research and development base" and "pipeline equipment capital" at home and abroad ".
Planning infrastructure investment has reached the middle stage. The explosive growth of investment in infrastructure construction such as roads and railways and the steady growth of investment in ordinary civil construction have made the construction industry in an upward stage of prosperity.
At the same time, under the background of building an energy-saving society and strengthening the independent innovation ability of the country, the theme of energy conservation and technological innovation will be the development hot spot of the industry. Plastic pipe fittings and pipes once again set off the pipe fittings boom.
碳钢弯头: ASTM/ASME A234 WPB、WPC合金: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP911、15Mo3 15CrMoV、 35CrMoV不锈钢:ASTM/ASME A403 WP 304-304L-304H-304LN-304NASTM/ASME A403 WP 316-316L-316H-316LN-316N-316TiASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H
Low temperature steel elbow: ASTM/ASME A402 WPL3-WPL 6
High Performance Steel Elbow: ASTM/ASME A860 WPHY 42-46-52-60-65-70
Cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, argon leaching, PVC,PPR, RFPP (reinforced polypropylene), etc.
The elbow making method can be divided into pushing, pressing, forging, casting and so on.
According to the elbow manufacturing standard, it can be divided into national standard, electric standard, ship standard, chemical standard, water standard, American standard, German standard, Japanese standard, Russian standard, etc.
According to its radius of curvature: can be divided into long radius elbow and short radius elbow. Long radius elbow refers to its radius of curvature is equal to 1.5 times the outer diameter of the pipe, that is, R = 1.5D; short radius elbow refers to its radius of curvature is equal to the outer diameter of the pipe, that is, R = 1.0D. (D is the elbow diameter and R is the radius of curvature).
According to the pressure level, there are about 17 kinds, which are the same as the pipe standards in the United States, including: Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS;Sch80, SCH100, Sch120, Sch140, Sch160, XXS; Among them, STD and XS are commonly used.
According to the different shapes and uses of elbows, they can be divided into: grooved elbows, ferrule elbows, double-bearing elbows, flange elbows, reducing elbows, dull seat elbows, internal and external tooth elbows, stamping elbows, push elbows, socket elbows, butt welding elbows, inner wire elbows, etc.
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