In
a large number of industries, square steel pipes are used. The
production of this kind of pipes is increasing day by day. With compare
to round steel pipes, square steel pipes are little more efficient. The
reason is that the square column is more efficient than the solid
circular column.
In a traditional space frame, for the bar members, circular hollow
section members are used. At the joint section, by welding along a curve
surface, the bar members are joined. Therefore, this process takes very
long time and seems to be difficult. To make the problem easier, square
steel pipes are used. The square steel pipes are used in a special
configuration. Both the perpendicular sides of two square steel pipes
are respectively aligned in perpendicular and parallel to the plane of
the frame bodies. In this case, by butt-welding, the cross points of the
bar members are joined along a short weld line.
The alloy used for manufacturing square steel tubes is carbon steel.
These steel tubes are used in structural projects, shelves, racks,
trailers and in ornamental purpose. The framework made by square steel
tubes, is used for providing support to the roof. This framework is also
used as roof top ventilation baffles.
