Square and rectangular steel pipe is a kind of appellation for square tube and rectangular tube, that is, the steel tube with equal and unequal side length. It is made of steel strip by technological treatment. Generally,the process is uncoiling, flattening, curled, welded to form a round pipe, then rolled into a square pipe by the round pipe and then cut into the required length. Surface treatment: hot galvanizing, powder coating, oiling, black paint, etc.

Nowadays square and rectangular steel pipe are widely used in many fields such as steel structure of building,automobile manufacture, shipping building,machinery manufacturing, bridge construction,container keel construction,stadium construction and large airport constructions..In the past 2019, Xinyue steel has exported a large quantities of square tubes to the world. For example, Vietnam's coal mine project, Saudi Arabia's bridge project, Spain's railway project, Africa's decorative pipe project, as well as serving for Australia and South America's stockists, etc,. American standard ：ASTM A500, Australian standard :AS/ NZ1163, Japanese standard: JIS g3101, European standard: EN10210, EN10219, etc. Square pipe sizes range from 10X10mm to 800X800, and rectangular pipe sizes range from 10x20mm to 1000x1200mm. Every export has been unanimously affirmed by customers.

In the face of the increasing demand of various types of projects for this product, Xinyue is also constantly improving its technology to provide better services to customers.

Written by Ellen