As the name implies, square pipe is a square steel pipe, it is the most common material in industrial construction industry. From the current development, not only the demand for square pipe in industry and construction industry has greatly increased, but also other industries are using square pipe more and more. In order to meet the needs of people, the types of square pipe are also increasing. Sellers also manage more people, and the quality of the square tubes sold by these businesses is quite different, so we must learn some knowledge of choosing square tubes, choose good quality square tubes to improve the quality of products, and good quality square tubes can also improve the safety factor.

　　So what kind of method should we use to select the square pipe with good quality and good reputation? Everyone who knows about the square pipe knows that the square pipe has certain tensile and compressive properties, so we can also consider these aspects when choosing the square pipe. The tensile strength is the most basic performance of the square pipe, so the tensile strength. The bigger the square tube, the better the performance, so we choose the square tube with higher tensile strength can let the square tube bring us more help. Of course, the square tube has other characteristics, other characteristics refer to the compressive and bending performance, we choose the square tube from these three aspects to consider, can not only focus on one aspect, only a comprehensive consideration can let oneself select the best square tube.