Galvanized Seamless Steel Pipe
  • Galvanized Seamless Steel PipeGalvanized Seamless Steel Pipe
  • Galvanized Seamless Steel PipeGalvanized Seamless Steel Pipe
  • Galvanized Seamless Steel PipeGalvanized Seamless Steel Pipe
  • Galvanized Seamless Steel PipeGalvanized Seamless Steel Pipe
  • Galvanized Seamless Steel PipeGalvanized Seamless Steel Pipe
  • Galvanized Seamless Steel PipeGalvanized Seamless Steel Pipe

Galvanized Seamless Steel Pipe

You are welcomed to come to our factory to buy the latest selling, low price, and high-quality Pengfa Galvanized Seamless Steel Pipe. Small diameter optional thread buckle, sleeve tight type; Large diameter optional socket expansion, clamp connection.Hot-dip galvanized conduit:mplement the standard GB/T20041.21-2017 standard, in line with the national fire safety requirements, suitable for embedded and ceiling open installation.

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Product Description

You can rest assured to buy Pengfa Galvanized Seamless Steel Pipe from our factory. Galvanized Seamless Steel Pipe are divided into cold-galvanized steel pipes and hot-dip galvanized steel pipes. Cold-galvanized steel pipes have been banned, and the latter has been advocated by the state to be used temporarily. In the 1960s and 1970s, developed countries in the world began to develop new pipes and gradually banned galvanized pipes. 


Four ministries and commissions, including the Ministry of Construction of China, have also issued a document stating that galvanized pipes should not be used as water supply pipes since 2000. Galvanized pipes are rarely used for cold water pipes in newly built communities, and galvanized pipes are used for hot water pipes in some communities. Hot-dip Cold-dip Galvanized Pipe are widely used in fire protection, electric power and highways.

 

The hot-dip Galvanized Seamless Steel Pipe reacts the molten metal with the iron substrate to produce an alloy layer, so that the substrate and the coating are combined. Hot-dip galvanizing is to pickle the steel pipe first. In order to remove the iron oxide on the surface of the steel pipe, after pickling, it is cleaned by ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to hot-dip coating tank. 


Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life. The hot-dip galvanized steel pipe substrate undergoes complex physical and chemical reactions with the molten plating solution to form a corrosion-resistant zinc-iron alloy layer with a tight structure. The alloy layer is integrated with the pure zinc layer and the steel pipe substrate, so it has strong corrosion resistance.

 

Cold-dip Galvanized Seamless Steel Pipe is electro-galvanized, and the amount of galvanizing is very small, only 10-50g/㎡, and its corrosion resistance is much worse than that of hot-dip galvanized pipe. The galvanized pipe manufacturer of the track, in order to ensure the quality, the large purchase of JDG threading pipe does not use electro-galvanizing (cold plating). Only small companies with small equipment and outdated equipment use electro-galvanized steel, of course, their prices are relatively cheaper. The Ministry of Construction has officially laid down the cold-dip galvanized pipes with backward technology, and the cold-dip galvanized pipes are not allowed to be used as water and gas pipes. 


The galvanized layer of cold-dip galvanized steel pipe is an electroplated layer, and the zinc layer is independently layered with the steel pipe substrate. The zinc layer is relatively thin, and the zinc layer is easily attached to the steel pipe substrate and is easy to fall off. Therefore, its corrosion resistance is poor. In newly built houses, it is forbidden to use cold-galvanized steel pipes as water supply pipes.

 

Product Parameter (Specification)

Cold Drawn Lu Li 12m5130 Lu Li 12m5030 Tobacco Big Seamless Giant Energy Expansion
 7 mm
14*2-3 12000 57*3. 5 140*4 325*6.5 5500
16*2-4 8600 60*3.5 5000 140*5 4850 325*7 Big Seamless 5260 377 5150
18*2-4 8300 76*3. 5 4880 140*6 4630 325*7*12 5450 426 5150
21*2-4 6900 76*4 4800 140*10 4630 325*9 8 mm
22*2-4 6900 89*4 4800 159*4.5 4880 325*10 377 4850
25*2-5 6300 108*4 4800 159*5 4660 356*8 5300 406 4850
27*2-4 6300 76*4. 5 4690 159*6 4630 356*8.5 5300 426 4850
27*5-6 6300 89*4.5 4690 159*7 4630 356*9 5300 457 5000
32*2.5 5800 108*4. 5 4690 159*8 4630 377*8Baotou Steel 5450 480-530 5000
32*3 5250 73*5 4630 168*5 4750 377*8Tobacco 610-630 5200
32*3. 5-4 5250 76*5 4630 168*6 4580 377*9 Tobacco 9 mm
32*4.5 5250 89*5 4630 168*6.7 4580 377*9.5 5280 426-457 4800
34*3 5250 89*5.2 4630 168*7 4580 377*10 5280 480-530 4800
34*3. 5-4 5250 108*5 4630 219*6 4750 377*12 5300 610-630 4800
34*5-6 5250 76*6 4600 219*6.5 4760 406*9.5 5300 720 5100
38*3-4 5200 89*6 4600 219*7 4560 406*10 5300 820 5200
38*5-6 5200 108*6 4600 219*7.8 4560 426*8 5400 10mm
Hot Rolled 114*4 4900 219*8 4560 426*9 5400 377*10 4750
42*3 4950 114*4. 5 4750 219*10 426*9.5 5300 426*10 4750
42*3. 5-4 4800 114*5 4630 273*6.5 4980 426*10 5300 480*10 4750
42*5-6 4800 114*5.7 4630 273*7 4760 457*9 508*10 4750
45*3 4900 114*6 4600 273*8 4750 457*20 530*10 4750
45*3. 5-4 4800 114*8 4600 273*8.5 4560 Ju Neng Mo Long 610*10 4850
45*5-6 4800 133*4 5000 273*9 4560 325*8 630*10 4850
48*3 4850 133*4. 5 4730 273*10 4560 325*9 720*10 5050
48*3. 5-4 4750 133*5 4660 325*8 4730 325*10 4580 820*10 5150
48*5-6 4750 133*6 4630 325*8.5 4640 325*11 4530 11mm or more
57*3 4950 133*4Big Seamless 5300 325*9 4610 325*12 4530 480 4750
57*3. 5 4700 27*2.7-3 6m 6800 325*10 4580 325*13 4530 508 4750
57*4 4700 32*3-4 6m 5550 325*14 4530 530 4750
57*5-6 4700 34*3.5 6m 5550 Shandong 325*15 4530 610 4850
60*3 4800 42*5 6m 325*16 4530 630 4850
60*3.5 4700 48*3. 5 6m 5000 194*6 5000 720 5050
60*4 4700 57*3. 5 6m 4950 219*6 4750 820 5150
60*5-6 4700 57*4 6m 4950
6m fixed length*130 Middle disconnect*100 Stock small tube 6m fixed length*300


Product Feature And Application

Galvanizing can increase the corrosion resistance of steel pipes and prolong their service life. Galvanized Seamless Steel Pipe are widely used in construction, machinery, coal mines, electric power, railway vehicles, automobile industry, highways, containers, sports facilities, agricultural machinery, petroleum machinery, mining machinery, greenhouse construction, in addition to water, gas, oil, etc. In addition to general low-pressure fluid line pipes, they are also used as oil well pipes and oil pipelines in the petroleum industry, especially in offshore oil fields, oil heaters, condensing coolers, and pipes for coal distillation oil exchangers in chemical coking equipment, as well as trestle piles and mines. The supporting frame of the tunnel, etc.

 

Product Details




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