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Xiaojin Outong is one of the leading manufacturers of flat rolled steel and long steel products with annual production capacity of over a million ton, product range includes color coated steel, hot-dipped galvanized and aluminium-zinc coated steel, pipes, and profiles etc.

Square pipe
Name:Square pipe
pickling square:coated oil square
electric galvanizing square:hot galvanizing square

Square tube, as the name implies, it is a kind of form of tube type, a lot of kinds of material of material can make the tube body, it is medium in, what, in what place, most of the square tube steel tube, for most, after unpacking, smooth, curly, form circular tube welding, again by circular tube rolling into square tube and then cut into required length.

Square pipe is a kind of hollow square section light thin-walled steel pipe, also known as steel cooling bend profile.It is the shape of the shape of the square section shaped by high frequency welding, which is made of hot rolled or cold rolled strip steel or rolled plate.In addition to thickening thickness of the wall thickness of the hot-rolled wall, the angular dimension and the horizontal straightness of the wall have reached even more than that of the resistance welding.Good mechanical properties, welding, cold, heat processing and corrosion resistance, good low temperature toughness.


Material classification

The square pipe is divided according to the material: the carbon steel square pipe and the low alloy square pipe.

Carbon steel is divided into: Q195, Q215, Q235, SS400, 20# steel, 45# steel, etc.

Low alloy steel is divided into Q345, 16Mn, Q390 and st52-3.

According to the surface treatment

The square pipe is divided according to the surface: hot galvanizing square pipe, electric galvanizing square pipe, coated oil square pipe, pickling square pipe

Use of the product features of the square pipe

The purpose of the square tube construction, machinery manufacturing, steel construction projects, shipbuilding, solar power stents, steel structure engineering, electric power engineering, power plants, agricultural and chemical machinery, glass curtain wall, automobile chassis, airport, the boiler construction, highway railings, housing construction, pressure vessel, oil tank, bridge, power station equipment, lifting transportation machinery and other high load of welded structure, etc.

Galvanized square pipe

Galvanized square tubes is a kind of hot rolled or cold rolled galvanized strip steel or galvanized coils for billet after cold bending forming after made by high frequency welding square cross section shape of the size of the hollow rectangular cross section steel tube;Or the prefabricated cold curved hollow steel tube reprocessed by hot dip galvanizing into the galvanizing rectangular tube.

Square tube USES: construction, machinery manufacturing, steel construction, shipbuilding, solar power stents, steel structure engineering, power engineering, power plants, agricultural and chemical machinery, glass curtain wall, automobile chassis, airport, etc.

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