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Galvanized steel pipe

Galvanized pipes, also known as galvanized steel pipes, are divided into hot-dip galvanized and electro-galvanized. Hot-dip galvanized layer is thick, with uniform coating, strong adhesion and long service life. The cost of galvanizing is low, the surface is not smooth, and the corrosion resistance is much worse than that of hot-dip galvanized pipes.

Galvanized steel pipe advantage

Firstly, the surface of galvanized pipe after hot dip galvanizing can be protected, it is difficult to enter inside the pipe cavity or the corner of any other coating, and the deepening zinc can easily cover the top, so that the whole galvanized pipe can be protected.
Secondly, the impact resistance and wear resistance of galvanized pipe is very good after galvanizing because the hardness value of galvanized layer is larger than that of steel, so the impact resistance and wear resistance after hot-dip galvanizing is quite good. Furthermore the biggest advantage of galvanizing is that the zinc layer at the corner will be thicker, with better toughness and wear resistance, while other plating layers are often the thinnest and most difficult to construct at this corner, so it is easy to be injured.
Third, one of the great features of hot-dip galvanizing is that occasionally a small portion of the zinc layer will come off and the iron base will be exposed due to larger mechanical damage or other causes, then it will work around the zinc layer and other plating. The same spirit of sacrifice protects the steel here from erosion.
Finally, the life and aesthetic art of hot-dip galvanizing and other aspects of life is the main body of the thickness of the plating in a given environment, which in turn is influenced and determined by the thickness of the galvanized pipe, so thicker galvanized pipes are more likely to be plated. Second, from the aesthetic and artistic point of view, at that time is certain serious corrosive environment, galvanized layer above and then apply paint to deal with, as long as the correct choice of paint system, its anti-corrosion effect will be very easy to construct a good.

Galvanized steel pipe specification

Product Name

galvanized steel pipe 

Out Diameter

Pre galvanized:1/2''-4''(21.3-114.3mm). 

Such as 38.1mm, 42.3mm, 48.3mm, 48.6mm or as customer request.

Hot dipped galvanized:1/2''-24''(21.3mm-600mm).

Such as 21.3mm, 33.4mm, 42.3mm, 48.3mm, 114.3mm or as customer request.


Pre galvanized:0.6-2.5mm.

Hot dipped galvanized: 0.8- 25mm.

Zinc coating

Pre galvanized:5μm-25μm

Hot dipped galvanized:35μm-200μm


Electronic Resistance Welded (ERW)

Steel Grade

Q235, Q345, S235JR, S275JR, STK400, STK500, S355JR, GR.B-D


BS1139-1775, EN1039, EN10219, JIS G3444:2004, GB/T3091-2001, BS1387-1985, DIN EN10025, ASTM A53 SCH40/80/STD, BS-EN10255-2004

Surface Finish

Pre-galvanized, Hot dipped galvanized, Electro galvanized, Black, Painted, Threaded, Engraved, Socket.

International Standard



1.Big OD:in bulk 

2.Small OD:packed by steel strips 

3.woven cloth with 7 slats 

4.according to the requirements of customers

Main Market

Middle East,Africa, Asia and some Uropean country and South America, Australia

Country of origin



5000Tons per month.


1. Payment terms : T/T ,L/C 

2. Terms of trade : FOB ,CFR,CIF ,DDP,EXW 

3. Minimum order : 2 tons 

4. Delivery time : Within 25 days.

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lndustries Served

Every industry has its unique set of material specifications and needs. That’s why you can count on the exceptional experience and industry knowledge of the professionals at Kuaima Steel - Meeting the Exact Needs of Every Industry That Uses steel.

  • Machinery manufac- turing industry
  • Power Generation
  • Oil & Gas
  • Manufacturing
  • Construction
  • Ship Building
  • Automobile manufacturing
  • Pipe Fabrication

Our main export country

We are a well known worldwide exporter of Galvanized steel pipe , Ireland, Portugal, Gambia, Thailand, Ukraine, United Kingdom, Netherlands, South Africa, Spain, Turkey, Italy, Libya, Romania, Puerto Rico, Azerbaijan, United Arab Emirates, Pakistan, Philippines, Ghana, Slovakia, Germany, Saudi Arabia, Afghanistan, China, Bolivia, Switzerland, Bangladesh, Taiwan, Oman, Egypt, Greece, Norway, Singapore, Bulgaria, Estonia, Belgium, Yemen, Hong Kong, Ecuador, Sri Lanka, Nepal, Belarus, Finland, Gabon, Iran, Canada, Argentina, Lebanon.

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