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Why the Steel Tube Is Designed to Be These Two Different Shapes?

in Terms and Conditions Wed Feb 12, 2014 2:40 am
by xinlinpipe • 3 Posts

Just as their names imply, in the view of appearance, the cross section of square steel tube is quadrate, while the rectangular one has an orthogonal shaped cross section. From the perspective of mathematics, foursquare has the largest area, as a result, it possesses the most stable shape, and the square shaped steel tube is the most stable one among all kinds of steel tubes. Having said all of the above, under what conditions do rectangular and square API steel pipe apply to? Rectangular steel tubes are suited to sustain bending moment or torsional one comparing to square steel tubes. But if what they have to support is shearing force, then the square steel tubes maybe a better choice, for its larger cross section. In addition, rectangular and square steel tubes are clipped into 6 or 12 meters normally, and if the steel tubes which customers need are above 6 meters, manufacturers can cut the steel tubes according to customers' requests. Generally, venders can customize the lengths of steel tubes as buyers like if lengths are blow 12 meters.

There quite some applications of the rectangular black steel pipe tubes. Rectangular steel tubes are widely used in building, machinery manufacturing, ship constructing, steel structure projects, and electric power project. While the square steel tubes are extensively used in automobile chassis manufacturing, airport constructing, and they also play a very important role in the construction of guard bar of the highway, glass curtain wall, house and the like.

In conclusion, without considering the different shape of rectangular and square, whether the welded steel pipe tube is rectangular or square, it is an essential tool in constructions.

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