Square tube, is a square pipe and a rectangular pipe called, that is, the length of the pipe is equal and unequal.Is a strip of steel processed by the process of rolling.Usually the Strip after unpacking, flat, curl, welded to form a pipe, and then rolled into a square tube from the tube and then cut into the required length.
1, square rectangular tube wall thickness allowable deviation, when the wall thickness is not greater 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%, except for the corner and the weld area wall thickness.
2, usually rectangular tube delivery length of 4000mm-12000mm, with 6000mm and 12000mm majority.Square tube allows delivery of not less than 2000mm short-foot and non-length products, can also interface tube form delivery, but the demand side in the use of the interface tube should be cut.Short-foot and non-length product weight does not exceed 5% of the total delivery, for the theoretical weight of more than 20kg/m square tube should not exceed 10% of the total delivery%
3, square tube bending degree of each meter shall not be greater than 2mm, the total bending degree shall not be greater than the total length of 0.2%
Square rectangular tube is widely used in machinery manufacturing, construction, metallurgical industry, agricultural vehicles, agricultural greenhouses, automobile industry, railway, highway guardrail, container skeleton, furniture, decoration and steel structure fields.
The above is xiaobian for everyone to bring knowledge about the square tube, and want to know more friends welcome you to consult.
