Black square pipe is one of the most popular steel pipes.
It is widely used for buildings and constructions. And as we can see, it is just like a box. But how to make the square pipe?
We are very familliar with round steel pipe. As we know that the round steel pipe is made from black coil by welding. We roll the coil material directly into a round tube embryo, then weldeding the edges together to make a round pipe.
Actually, the square pipe is also from this way by welding the coils. The only difference is after the round pipe, we will reformed the round pipe into the square pipe. We need to calculate the sizes well before choosing the material.
If anything or any problem, just let me know. Or welcome to us - Tianjin Tianyingtai Steel Pipe Co.,Ltd.
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