What are the differences between round stainless steel pipes and square steel pipes

Round stainless steel pipes and square steel pipes are very common in life. Whether it is a national standard or a non-standard part, the amount of stainless steel used in these two shapes is comparable. There are still differences between round stainless steel pipes and square steel pipes, and it is not just the difference in cross-section. Today, I will tell you in detail what the differences are between round stainless steel pipes and square steel pipes.

1. Production difference: round steel pipes are extruded into a round shape using stainless steel strips and then welded online. Square steel pipes are first made into round steel pipes and then extruded into square steel pipes through a mold. Square steel pipes have one more process, so the price will be a little more expensive.

2. The difference in pipe wall technology: Most of the outer walls of stainless steel round steel pipes are polished, while square steel pipes are brushed. This is because the four corners of square steel pipes are not easy to polish, and square steel pipes are more likely to be scratched, so brushed surfaces can reduce the presence of scratches. To prevent slipping, the surface of some round steel pipes will also be made into a frosted effect, and the particle size can be adjusted. The inner wall of the round steel pipe can be polished, and the brightness is also relatively uniform. Stainless steel square tubes cannot be polished due to internal structural problems, especially since the four corners are difficult to polish, and even if polished, they are not uniform enough.

3. Difference in pipe mouth process: The pipe mouth of the round steel tube can be processed by shrinking, expanding, shrinking, reducing diameter, curling, chamfering, etc., but the square steel tube cannot be processed.

4. Difference in quality control: The roundness of stainless steel round steel tubes is difficult to control during production and storage, and the tube body is often sunken and the pipe mouth is deformed, especially the steel tube with a relatively small wall thickness. The four sides of the square steel tube are prone to indentation and the R angle is difficult to control. This is caused by the poor precision of the mold and the lack of experience of the operator.

5. Difference in structural force: The surface force of the round steel tube is more uniform; the stainless steel square steel tube has four 90-degree corners, which are not easy to rotate and twist, and is more secure when fixing certain objects. In home furnishings such as our doors and anti-theft windows, square steel tubes are generally used as frames, and round steel tubes are used as linings. The combination makes the items both firm and resistant to external impact.

6. Difference in usage: In many cases, square steel pipes and bent pipes can replace each other, but it is different in certain cases. Due to the structure of stainless steel round steel pipes and the polishable inner wall, the pipe wall is not easy to scale and is easy to clean, so it is the first choice for fluid transportation; the interior of square steel pipes is prone to scale accumulation and inconvenient to clean, so they are generally not used for fluid transportation. Since the resistance moment of square steel pipes is greater than that of round steel pipes, they will be more solid, so when used as structural support, square steel pipes will be used as the main component.

What are the differences between stainless steel round steel pipes and square steel pipes? Different production methods lead to different prices, and different pipe wall processes and structural forces lead to different applications. In many cases, stainless steel round steel pipes and square steel pipes are used together, each playing its advantages. You can refer to the above summary when purchasing.