Rectangular tube

Square rectangular pipe is a name for square pipe and rectangular pipe, that is, steel pipes with equal and unequal side lengths. It is rolled with steel through process treatment. Generally, the strip steel is unpacked, flattened, crimped and welded to form a round tube, which is then rolled into a square tube and then cut into the required length.

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Product Catalog

Classification:

Square rectangular pipe

Key words:

Zhenhong

Product Description

Square Tube Product Manuals
I. Product Introduction
Rectangular pipe root of the country GB/T6728-2017, by the strip steel or coil plate after the process of rolled, a small part of the strip steel after unwrapping, flattening, curling, welding to form a round tube, and then rolled from the round tube into a square tube, and then cut into the required length, the largest share of the market are directly rolled and welded from the strip steel or coil plate molding.
Specification:Minimum 15 square, maximum 500 square, thickness 0.6 - 20mm of a variety of square tube, can also be customized according to customer needs.
Usage: Widely used in building steel structure, bridge construction, automobile manufacturing, machinery manufacturing, equipment and so on.
Company:Foshan Sanshui Zhenhong Steel Products Co.

Second
Cold-formed square and rectangular steel pipe (Implementation standard GB/T6728-2017) a see the following table.
Third, series products



V. Connection methods
(一) Direct connection.
Directly weld the square tube by electric welding, simple and convenient, high operability, suitable for daily general connection.
(二) Indirect connection.
①Find a section of square tube that can fit into the connecting tube, and weld it together with the inner layer of the welding place. If you can not find the applicable pipe, can be close to the size of the connecting pipe size of the square tube cut open, so that its side length is exactly set into the square tube to be welded, and then welded together, so that both beautiful and does not affect the strength.
② Find a section of square tube, just enough to be connected to the square tube set into the inner layer of the weld and weld it together. If you can't find a suitable pipe, you can find two or four sections of angle iron of comparable size, so that it can just keep the corners of the square tube to be connected, and then weld them together. Improve the strength.
(三) (iii) Screw connection
Weld two pieces of steel plates with drilled holes on the square tube joints to be connected, and then connect the square tubes with bolts (high-strength or ordinary bolts).
（六）Transportation and Packaging
(1) Transportation of square tube: when handling or transferring, we should put it carefully and gently, and forbid throwing, dragging, pulling and violent impact, so as to avoid deformation of the square tube, which will affect the normal use and appearance quality.
(2) Square tube packaging: finished products must be in strict accordance with customer and transportation requirements before leaving the factory coated with anticorrosive agents or other wax-plated packaging, which is an important step to prevent rust and corrosion of the finished tube, in the process of transportation, loading and unloading and transshipment must pay attention to the protection of the packaging can not be damaged to extend the storage period of the finished tube. ③Note: The site or warehouse for keeping steel should be kept in a clean, clean, well-drained, air permeable area, away from the generation of harmful gases or dust, the warehouse shall not be stacked with acid, alkali, salt, cement and other erosive materials on the steel. Different varieties of steel should be stacked separately to prevent misplaced confusion, and often keep the environment hygienic and tidy.

（七）Problem Solving
③ zinc dip square tube surface without scratches, no bubbles, no impurities, no leakage of plating; ④ connection should be smooth, do not allow unevenness, weld phenomenon; square tube connection gap can not be more than 0.5mm, there can not be a difference between the height of the square tube, all square tube is not allowed to have a short material, welding, deformation phenomenon; ⑤ connection should not be skewed, welding, deformation phenomenon; ⑤ connection should not be too large, keep the welding point sharp or no hairline
⑤ Connections can not be skewed, welding angle needs to be at right angles, diagonal tolerance of 2mm;.

Rectangular tube

South China:

400-888-5765

Southwest:

400-999-8393

Product Consulting

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