Q235 ERW square and rectangular pre &hot dipped galvanized steel pipe

Product Description

Product Introduction.
Rectangular and square tubes, is a kind of pipe with equal and unequal length of cross section,Is formed from the strip steel through the rolling process.Generally the strip go through unpacking, smooth, curly, welding to circular tube, again rolling into square tube by circular tube and then cut into required length.

Primary Application.
Machinery and equipment, solar energy equipment, steel structure, auto parts, bridge pile, guardrail, ship's internal structure.

Pre Galvanized square steel pipe.

1. Rolling and welding by galvanized steel strip, the zn coating is relatively lower,40-100g/m2, the cost is lower than hot dipped galvanized.
2.Could cut to any length by customers' requirement.

Hot dipped galvanized square steel pipe.

1.Firstly make pickling, in order to remove iron oxide on the surface of the steel tube, after acid cleaning, put the pipe into ammonium chloride and zinc chloride mixed aqueous solution tank to do cleaning, and then sent to the hot dip galvanized tank.Hot dip galvanized has the advantages:uniform coating, strong adhesion, long service life, etc.

2.Could cut to any length by customers' requirement.

Color painting square steel pipe.

1.Paingting on then inner and outer of pipe, Effectively prevent the problem of the carbon tubes are easy to rust, also the cost is lower enough.

2.The color could according to customers' requirement, usually is red, black, blue.

1. Sample: we can offer free sample as your requested.
2. Products Info: quickly reply for any contact way!
we will stay online for above 14 hours, so any problems about the products we can answer for you in detail,
when off line , pls send us emails ,we will answer for you asap .
3. Delivery time: We have our own special team, we can arrange the best delivery time for you.
4. Enough Exporting Experience: our company has engaged in this field for more than 10 years, and we have ourselves factory!

Please feel free to contace me.




We prefer to explain price, but we do not want to apologize for the quality.

Our company is a located in Jinghai County, Tianjin,we are a professional and reputable steel manufacturer and exporter in China,producing and offering our clients welded steel pipes, galvanized steel pipes, color and galvanizedd steel coils other related products. Products are mainly exported to South America, Europe,Southeast Asia and Africa. Since the mill was established in 2007, we have been adopting advanced production equipment to improve the quality of products,reduce the cost of producing ,we have the good production environment now, covers an area of 15,000 square meters with advanced production equipment, precision testing instruments, Our factory has the annual production capacity of 40,000MT last year,and the annual volume of international trade is about USD2.7 million since 2010.Generally, our products are widely applied in construction, bridge, car manufacturing, electrical installation and mining.

Factory picture.
Four lines for galvanized steel pipe,square steel pipe.

Factory Office.
Capacious and bright work environment to make our work more efficient.

Sales office.
Two sales department,more than 10 staff will offer the best service.

Galvanized Steel Pipe can be made into a strong plumbing or tubing material -- one that resists corrosion from exposure to water or the elements.Q235 ERW square and rectangular pre &hot dipped galvanized steel pipe has been used used for water-supply pipes or as a strong tubing for outdoor applications.
USHDJ
Galvanized Steel Pipe is most commonly used for outdoor construction like fences and handrails, or for some interior plumbing. Q235 ERW square and rectangular pre &hot dipped galvanized steel pipe is also sometimes called galvanized iron pipe. Galvanized steel pipe has been coated with a layer of zinc. The zinc provides a barrier against corrosion so that the pipe may be exposed to the outdoor environmental elements.Galvanized Steel Pipe The protective barrier proves equally effective against damage from indoor humidity.Q235 ERW square and rectangular pre &hot dipped galvanized steel pipe is covered with a zinc material to make the steel pipe more resistant to corrosion.
ASHJHG