What is galvanized square pipe

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What is galvanized square pipe

Galvanized square pipe, also known as square and rectangular cold formed hollow steel, square pipe and rectangular pipe for short. Galvanized square pipe is a kind of name of square pipe and rectangular pipe, that is, steel pipe with equal side length. It is made of strip steel through processing and rolling. Generally, strip steel is unpacked, leveled, crimped, welded to form a round tube, which is then rolled into a square tube and cut to the required length. Usually 50 sticks per pack. The simple description of hot-dip galvanized square pipe is as follows:

1. The usual delivery length of galvanized square rectangular pipe is 4000mm-12000mm, with 6000mm and 12000mm as the majority. Square rectangular pipe is allowed to deliver not less than 2000mm short and non-fixed size products, can also be delivered in the form of interface pipe, but the customer should be in use when the interface pipe should be removed. The weight of short size and non-fixed size products shall not exceed 5% of the total delivery, for the theoretical weight of more than 20kg/m square pipe shall not exceed 10% of the total delivery.

2. The bending degree of galvanized square rectangular pipe shall not be greater than 2mm per meter, and the total bending degree shall not be greater than 0.2% of the total length.

3. The allowable deviation of galvanized square rectangular pipe wall thickness shall not exceed plus or minus 10% of the nominal wall thickness when the wall thickness is less than 10mm, and plus or minus 8% of the wall thickness when the wall thickness is more than 10mm, except the wall thickness of the corner and weld area.

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