Seamless square tube fixed-length processing

Seamless square pipe is a title for square pipe and rectangular pipe, that is, steel pipe with flat side length. It is made by rolling strip steel through skill disposal. Usually, the strip steel is unpacked, flattened, bent and welded to form a round pipe, which is then rolled into a square pipe and then cut into the required length.

Square pipes are also called square and rectangular cold-formed hollow sections, referred to as square pipes and rectangular pipes, and are code-named f and j respectively.

1, square pipe wall thickness of the promised error, when the wall thickness is not more than 10mm shall not exceed the nominal wall thickness of plus or minus 10%, when the wall thickness is greater than 10mm for the wall thickness of plus or minus 8%, corner and weld area wall thickness outside.

2. The usual delivery length of square tubes is 4000mm-12000mm, mostly 6000mm and 12000mm. The square tube is promised to be delivered to short-length and non-fixed-length commodities not less than 2000mm, and can also be delivered in the form of interface tube, but the buyer shall cut off the interface tube when using it. The weight of short-length and non-fixed-length commodities shall not exceed 5% of the total delivery volume, and square tubes with theoretical weight greater than 20 kg/m shall not exceed 10% of the total delivery volume.

3. The bending degree of square tube shall not be greater than 2mm per meter, and the total bending degree shall not be greater than 0.2 of the total length

Use of square pipe goods: mechanical equipment, solar equipment, steel layout, auto parts, bridge piles, guardrails, internal layout of ships.