Why do billboards use angle iron instead of square tubes?

本文目录一览I、Which material is the best for iron beds? 1. Angle iron 2. Round tube 3. Square tube
Square tubes are the best. The tubes used for iron beds are specially made, and the corners of square tube materials have been specially passivated. Square pipes have the strongest structure and are generally welded with carbon dioxide. The thickness is about 1.0 mm. The four legs use 38*38 mm square tubes, and the load-bearing beam uses 50*25 mm square tubes.
There are many problems with angle irons, the most important one is safety. The edge of the angle iron is sharp and can easily injure people. The welding scars can easily loosen during use, or the beam may be bent. Because it is simple to do, it is usually done by painting it.
The appearance of round tubes is better. The single production cost is the highest and is suitable for making iron beds.

II、Which one has better load-bearing capacity, angle iron or square tube?
Square tube is better.
1. According to the query on China Machinery Network, square tubes have high support strength and are more resistant to pre ssure. Angle iron support strength is poor.
2. Square tubes can be used in a large area and use less materials. Angle iron can be used in a small area and uses a lot of materials.

III、Which one is stronger, angle steel or square tube?
Hello, I think angle steel is more suitable. Angle steel is divided into two types: equilateral and unequal. It has fewer angular edges than square steel. Square steel is prone to stress concentration during use, resulting in lower strength. Happy to answer your questions. Thanks!

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