Galvanized Steel Pipe for Gound Pile

You are welcomed to come to our factory to buy the latest selling, low price, and high-quality Pengfa Galvanized Steel Pipe for Gound Pile. Galvanized steel pipe is used as water supply pipe and hot water pipe in building water supply and drainage and heating engineering, which has the advantages of long service life, clean sanitation, simple construction and installation.

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Product Description

You can rest assured to buy Pengfa Galvanized Steel Pipe for Gound Pile from our factory. Galvanized Steel Pipe for Gound Pile 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 Steel Pipe for Gound Pile 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 Steel Pipe for Gound Pile 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		12m5130	140*4		12m5030	325*6.5	5500	Giant Energy Expansion 7 mm
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	325712	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 length130 Middle disconnect100 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 Steel Pipe for Gound Pile 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.